Huawei S6700 Series Configuration manual

S6700 Series Ethernet Switches

V200R001C00

Configuration Guide - IP Routing

Issue 01

Date 2012-03-15

HUAWEI TECHNOLOGIES CO., LTD.

No part of this document may be reproduced or transmitted in any form or by any means without prior written

consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the

customer. All or part of the products, services and features described in this document may not be within the

purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,

and recommendations in this document are provided "AS IS" without warranties, guarantees or representations

of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

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About This Document

Intended Audience

This document provides the basic concepts, configuration procedures, and configuration

examples in different application scenarios of the S6700, including static routes, routing

protocols (RIP, RIPng, OSPF, OSPFv3, IS-IS, BGP), and routing policies.

This document describes how to configure the IP routing features.

This document is intended for:

l Data configuration engineers

l Commissioning engineers

l Network monitoring engineers

l System maintenance engineers

Symbol Conventions

The symbols that may be found in this document are defined as follows.

Symbol

Description

DANGER

Indicates a hazard with a high level of risk, which if not

avoided, will result in death or serious injury.

WARNING

Indicates a hazard with a medium or low level of risk, which

if not avoided, could result in minor or moderate injury.

CAUTION

Indicates a potentially hazardous situation, which if not

avoided, could result in equipment damage, data loss,

performance degradation, or unexpected results.

TIP

Indicates a tip that may help you solve a problem or save

time.

NOTE

Provides additional information to emphasize or supplement

important points of the main text.

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Command Conventions

The command conventions that may be found in this document are defined as follows.

Convention Description

Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

[ ] Items (keywords or arguments) in brackets [ ] are optional.

{ x | y | ... } Optional items are grouped in braces and separated by

vertical bars. One item is selected.

[ x | y | ... ] Optional items are grouped in brackets and separated by

vertical bars. One item is selected or no item is selected.

{ x | y | ... }

*

Optional items are grouped in braces and separated by

vertical bars. A minimum of one item or a maximum of all

items can be selected.

[ x | y | ... ]

*

Optional items are grouped in brackets and separated by

vertical bars. Several items or no item can be selected.

&<1-n> The parameter before the & sign can be repeated 1 to n times.

# A line starting with the # sign is comments.

Change History

Updates between document issues are cumulative. Therefore, the latest document issue contains

all updates made in previous issues.

Changes in Issue 01 (2012-03-15)

Initial commercial release.

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Contents

About This Document.....................................................................................................................ii

1 IP Static Route Configuration.....................................................................................................1

1.1 Static Route.........................................................................................................................................................2

1.2 Static Routing Features Supported by the S6700...............................................................................................2

1.3 Configuring an IPv4 Static Route.......................................................................................................................3

1.3.1 Establishing the Configuration Task.........................................................................................................3

1.3.2 Configuring an IPv4 Static Route on the Public Network.........................................................................4

1.3.3 (Optional) Setting the Default Preference for IPv4 Static Routes.............................................................5

1.3.4 Checking the Configuration.......................................................................................................................5

1.4 Configuring an IPv6 Static Route.......................................................................................................................6

1.4.1 Establishing the Configuration Task.........................................................................................................6

1.4.2 Configuring an IPv6 Static Route on the Public Network.........................................................................6

1.4.3 (Optional) Setting the Default Preference for IPv6 Static Routes.............................................................7

1.4.4 Checking the Configuration.......................................................................................................................7

1.5 Configuring BFD for IPv4 Static Routes on the Public Network......................................................................8

1.5.1 Establishing the Configuration Task.........................................................................................................8

1.5.2 Configuring an IPv4 Static Route on the Public Network.........................................................................9

1.5.3 Configuring a BFD Session.......................................................................................................................9

1.5.4 Binding a Static Route to a BFD Session..................................................................................................9

1.5.5 Checking the Configuration.....................................................................................................................10

1.6 Configuration Examples...................................................................................................................................10

1.6.1 Example for Configuring IPv4 Static Routes..........................................................................................10

1.6.2 Example for Configuring IPv6 Static Routes..........................................................................................14

1.6.3 Example for Configuring BFD for IPv4 Static Routes............................................................................19

2 RIP Configuration.......................................................................................................................23

2.1 Overview of RIP...............................................................................................................................................25

2.2 RIP Features Supported by the S6700..............................................................................................................26

2.3 Configuring Basic RIP Functions.....................................................................................................................26

2.3.1 Establishing the Configuration Task.......................................................................................................26

2.3.2 Enabling RIP............................................................................................................................................26

2.3.3 Enabling RIP on the Specified Network Segment...................................................................................27

2.3.4 Configuring RIP Version Number...........................................................................................................28

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2.3.5 Checking the Configuration.....................................................................................................................29

2.4 Configuring RIP Route Attributes....................................................................................................................29

2.4.1 Establishing the Configuration Task.......................................................................................................29

2.4.2 Configuring Additional Metrics of an Interface......................................................................................30

2.4.3 Configuring RIP Preference....................................................................................................................31

2.4.4 Setting the Maximum Number of Equal-Cost Routes.............................................................................31

2.4.5 Checking the Configuration.....................................................................................................................32

2.5 Controlling the Advertising of RIP Routing Information................................................................................32

2.5.1 Establishing the Configuration Task.......................................................................................................32

2.5.2 Configuring RIP to Advertise Default Routes.........................................................................................33

2.5.3 Disabling an Interface from Sending Update Packets.............................................................................33

2.5.4 Configuring RIP to Import External Routes............................................................................................35

2.5.5 Checking the Configuration.....................................................................................................................36

2.6 Controlling the Receiving of RIP Routing Information...................................................................................36

2.6.1 Establishing the Configuration Task.......................................................................................................36

2.6.2 Disabling an Interface from Receiving RIP Update Packets...................................................................37

2.6.3 Disabling RIP from Receiving Host Routes............................................................................................37

2.6.4 Configuring RIP to Filter the Received Routes.......................................................................................38

2.6.5 Checking the Configuration.....................................................................................................................39

2.7 Configuring RIP-2 Features..............................................................................................................................39

2.7.1 Establishing the Configuration Task.......................................................................................................39

2.7.2 Configuring RIP-2 Route Summarization...............................................................................................40

2.7.3 Configuring Packet Authentication of RIP-2..........................................................................................41

2.7.4 Checking the Configuration.....................................................................................................................42

2.8 Optimizing a RIP Network...............................................................................................................................43

2.8.1 Establishing the Configuration Task.......................................................................................................43

2.8.2 Configuring RIP Timers..........................................................................................................................44

2.8.3 Setting the Interval for Sending Packets and the Maximum Number of the Sent Packets......................45

2.8.4 Configuring Split Horizon and Poison Reverse......................................................................................45

2.8.5 Configuring RIP to Check the Validity of Update Packets.....................................................................46

2.8.6 Configuring RIP Neighbors.....................................................................................................................47

2.8.7 Checking the Configuration.....................................................................................................................47

2.9 Configuring the Network Management Function in RIP.................................................................................48

2.9.1 Establishing the Configuration Task.......................................................................................................48

2.9.2 Binding RIP to MIBs...............................................................................................................................48

2.9.3 Checking the Configuration.....................................................................................................................49

2.10 Configuration Examples.................................................................................................................................49

2.10.1 Example for Configuring the RIP Version............................................................................................49

2.10.2 Example for Configuring RIP to Import Routes...................................................................................53

3 RIPng Configuration...................................................................................................................59

3.1 RIPng Overview...............................................................................................................................................60

3.2 RIPng Features Supported by the S6700..........................................................................................................61

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3.3 Configuring Basic RIPng Functions.................................................................................................................61

3.3.1 Establishing the Configuration Task.......................................................................................................61

3.3.2 Enabling RIPng and Entering the RIPng View.......................................................................................62

3.3.3 Enabling RIPng in the VLANIF Interface View.....................................................................................62

3.3.4 Checking the Configuration.....................................................................................................................63

3.4 Configuring RIPng Route Attributes................................................................................................................63

3.4.1 Establishing the Configuration Task.......................................................................................................63

3.4.2 Configuring the RIPng Preference..........................................................................................................64

3.4.3 Configuring Additional Metrics of an Interface......................................................................................64

3.4.4 Configuring the Maximum Number of Equal-Cost Routes.....................................................................65

3.4.5 Checking the Configuration.....................................................................................................................66

3.5 Controlling the Advertising of RIPng Routing Information............................................................................66

3.5.1 Establishing the Configuration Task.......................................................................................................66

3.5.2 Configuring RIPng Route Summarization..............................................................................................67

3.5.3 Configuring RIPng to Advertise the Default Routes...............................................................................68

3.5.4 Configuring the Default Cost for External Routes Imported by RIPng..................................................68

3.5.5 Configuring RIPng to Import External Routes........................................................................................69

3.5.6 Checking the Configuration.....................................................................................................................70

3.6 Controlling the Receiving of RIPng Routing Information...............................................................................70

3.6.1 Establishing the Configuration Task.......................................................................................................70

3.6.2 Configuring RIPng to Filter the Received Routes...................................................................................71

3.6.3 Checking the Configuration.....................................................................................................................71

3.7 Optimizing a RIPng Network...........................................................................................................................72

3.7.1 Establishing the Configuration Task.......................................................................................................72

3.7.2 Configuring RIPng Timers......................................................................................................................73

3.7.3 Setting the Interval for Sending Update Packets and the Maximum Number of Packets Sent Each Time

..........................................................................................................................................................................73

3.7.4 Configuring Split Horizon and Poison Reverse......................................................................................74

3.7.5 Enabling the Zero Field Check for RIPng Packets..................................................................................74

3.7.6 Checking the Configuration.....................................................................................................................75

3.8 Maintaining RIPng...........................................................................................................................................75

3.8.1 Clearing RIPng........................................................................................................................................76

3.9 Configuration Examples...................................................................................................................................76

3.9.1 Example for Configuring RIPng to Filter the Received Routes..............................................................76

4 OSPF Configuration....................................................................................................................82

4.1 OSPF Overview................................................................................................................................................84

4.2 OSPF Features Supported by the S6700...........................................................................................................87

4.3 Configuring Basic OSPF Functions.................................................................................................................90

4.3.1 Establishing the Configuration Task.......................................................................................................90

4.3.2 Enabling OSPF........................................................................................................................................91

4.3.3 (Optional) Creating OSPF Virtual Links.................................................................................................92

4.3.4 (Optional) Configuring a Route Selection Rule on the switch................................................................93

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4.3.5 (Optional) Setting the OSPF Priority.......................................................................................................94

4.3.6 (Optional) Restricting the Flooding of LSA Update Packets..................................................................94

4.3.7 (Optional) Configuring the Maximum Number of Packet Retransmission Attempts.............................95

4.3.8 (Optional) Setting an Interval at Which an LSA Packet Is Retransmitted to the Neighboring switch

..........................................................................................................................................................................96

4.3.9 (Optional) Configuring an Interface to Fill in a DD Packet with the Interface MTU.............................96

4.3.10 Checking the Configuration...................................................................................................................97

4.4 Configuring OSPF on the NBMA or P2MP Network......................................................................................98

4.4.1 Establishing the Configuration Task.......................................................................................................98

4.4.2 Configuring Network Types for OSPF Interfaces...................................................................................99

4.4.3 Configuring NBMA Network Attributes...............................................................................................100

4.4.4 Configuring P2MP Network Attributes.................................................................................................101

4.4.5 Checking the Configuration...................................................................................................................103

4.5 Configuring an OSPF Route Selection Rule..................................................................................................103

4.5.1 Establishing the Configuration Task.....................................................................................................103

4.5.2 Setting the Interface Cost......................................................................................................................104

4.5.3 Configuring Equal-Cost Routes.............................................................................................................105

4.5.4 Configuring a Stub Router.....................................................................................................................106

4.5.5 Suppressing an Interface from Receiving and Sending OSPF Packets.................................................107

4.5.6 Checking the Configuration...................................................................................................................108

4.6 Controlling OSPF Routing Information.........................................................................................................108

4.6.1 Establishing the Configuration Task.....................................................................................................108

4.6.2 Configuring OSPF to Import External Routes......................................................................................109

4.6.3 Configuring OSPF to Import a Default Route.......................................................................................110

4.6.4 Configuring Route Summarization........................................................................................................111

4.6.5 Configuring OSPF to Filter Routes Received by OSPF........................................................................112

4.6.6 Configuring the switch to Filter LSAs to Be Sent.................................................................................113

4.6.7 (Optional) Configuring OSPF to Filter LSAs in an Area......................................................................114

4.6.8 (Optional) Enabling the Mesh-Group Function.....................................................................................114

4.6.9 Setting the Maximum Number of External LSAs in the LSDB............................................................115

4.6.10 Checking the Configuration.................................................................................................................116

4.7 Configuring an OSPF Stub Area....................................................................................................................116

4.8 Configuring an NSSA.....................................................................................................................................118

4.9 Configuring BFD for OSPF............................................................................................................................121

4.9.1 Establishing the Configuration Task.....................................................................................................121

4.9.2 Configuring BFD for OSPF in a Specified Process..............................................................................122

4.9.3 Configuring BFD for OSPF on a Specified Interface............................................................................123

4.9.4 Checking the Configuration...................................................................................................................125

4.10 Configuring OSPF GR..................................................................................................................................125

4.10.1 Establishing the Configuration Task...................................................................................................125

4.10.2 Enabling OSPF GR..............................................................................................................................126

4.10.3 (Optional) Configuring the GR Session Parameters on the Restarter.................................................127

4.10.4 (Optional) Configuring GR Session Parameters on the Helper...........................................................127

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4.10.5 Checking the Configuration.................................................................................................................128

4.11 Improving Security of an OSPF Network....................................................................................................128

4.11.1 Establishing the Configuration Task...................................................................................................128

4.11.2 Configuring the OSPF GTSM Functions............................................................................................129

4.11.3 Configuring the Authentication Mode.................................................................................................130

4.11.4 Checking the Configuration.................................................................................................................132

4.12 Configuring the Network Management Function of OSPF..........................................................................132

4.12.1 Establishing the Configuration Task...................................................................................................132

4.12.2 Configuring OSPF MIB Binding.........................................................................................................133

4.12.3 Configuring OSPF Trap.......................................................................................................................133

4.12.4 Configuring OSPF Log........................................................................................................................134

4.12.5 Checking the Configuration.................................................................................................................134

4.13 Maintaining OSPF........................................................................................................................................135

4.13.1 Resetting OSPF....................................................................................................................................135

4.13.2 Clearing OSPF.....................................................................................................................................135

4.14 Configuration Examples...............................................................................................................................136

4.14.1 Example for Configuring Basic OSPF Functions................................................................................136

4.14.2 Example for Configuring a Stub Area of OSPF..................................................................................142

4.14.3 Example for Configuring an OSPF NSSA Area.................................................................................147

4.14.4 Example for Configuring DR Election of an OSPF Process...............................................................151

4.14.5 Example for Configuring OSPF Load Balancing................................................................................156

4.14.6 Example for Configuring OSPF GR....................................................................................................161

4.14.7 Example for Configuring OSPF-BGP.................................................................................................164

4.14.8 Example for Configuring OSPF GTSM..............................................................................................173

4.14.9 Example for Configuring BFD for OSPF............................................................................................179

5 OSPFv3 Configuration.............................................................................................................185

5.1 OSPFv3 Overview..........................................................................................................................................187

5.2 OSPFv3 Features Supported by S6700..........................................................................................................187

5.3 Configuring Basic OSPFv3 Functions...........................................................................................................187

5.3.1 Establishing the Configuration Task.....................................................................................................187

5.3.2 Enabling OSPFv3..................................................................................................................................188

5.3.3 Enabling OSPFv3 on an Interface.........................................................................................................189

5.3.4 Entering the OSPFv3 Area View...........................................................................................................190

5.3.5 Checking the Configuration...................................................................................................................190

5.4 Establishing or Maintaining OSPFv3 Neighbor Relationship........................................................................191

5.4.1 Establishing the Configuration Task.....................................................................................................191

5.4.2 Configuring the Interval for Sending Hello Packets.............................................................................192

5.4.3 Configuring Dead Time of Neighbor Relationship...............................................................................192

5.4.4 Configuring the Interval for Retransmitting LSAs to Neighboring Switches.......................................193

5.4.5 Configuring the Delay for Transmitting LSAs on the Interface............................................................194

5.4.6 Checking the Configuration...................................................................................................................194

5.5 Configuring OSPFv3 Areas............................................................................................................................195

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5.5.1 Establishing the Configuration Task.....................................................................................................195

5.5.2 Configuring OSPFv3 Stub Areas..........................................................................................................195

5.5.3 Configuring OSPFv3 Virtual Links.......................................................................................................196

5.5.4 Checking the Configuration...................................................................................................................197

5.6 Configuring OSPFv3 NSSA Areas.................................................................................................................197

5.6.1 Establishing the Configuration Task.....................................................................................................197

5.6.2 Defining the Current Area to Be an NSSA Area...................................................................................198

5.6.3 Checking the Configuration...................................................................................................................199

5.7 Configuring OSPFv3 Route Attributes...........................................................................................................199

5.7.1 Establishing the Configuration Task.....................................................................................................199

5.7.2 Setting the Cost of the OSPFv3 Interface..............................................................................................200

5.7.3 Setting the Maximum Number of Equal-Cost Routes...........................................................................200

5.7.4 Checking the Configuration...................................................................................................................201

5.8 Controlling OSPFv3 Routing Information.....................................................................................................201

5.8.1 Establishing the Configuration Task.....................................................................................................202

5.8.2 Configuring OSPFv3 Route Aggregation..............................................................................................202

5.8.3 Configuring OSPFv3 to Filter the Received Routes.............................................................................203

5.8.4 Configuring OSPFv3 to Import External Routes..................................................................................204

5.8.5 Checking the Configuration...................................................................................................................205

5.9 Optimizing an OSPFv3 Network....................................................................................................................205

5.9.1 Establishing the Configuration Task.....................................................................................................205

5.9.2 Configuring the SPF Timer...................................................................................................................206

5.9.3 Suppressing an Interface from Sending and Receiving OSPFv3 Packets.............................................207

5.9.4 Configuring DR Priority of an Interface................................................................................................208

5.9.5 Configuring Stub Routers......................................................................................................................209

5.9.6 Ignoring MTU Check on DD Packets...................................................................................................209

5.9.7 Checking the Configuration...................................................................................................................210

5.10 Configuration OSPFv3 GR...........................................................................................................................210

5.10.1 Establishing the Configuration Task...................................................................................................210

5.10.2 Enabling OSPFv3 GR..........................................................................................................................211

5.10.3 Enabling the Helper of OSPFv3 GR....................................................................................................212

5.10.4 Check the Configuration......................................................................................................................212

5.11 Maintaining OSPFv3....................................................................................................................................212

5.11.1 Resetting OSPFv3................................................................................................................................212

5.12 Configuration Examples...............................................................................................................................213

5.12.1 Example for Configuring OSPFv3 Areas............................................................................................213

5.12.2 Example for Configuring DR Election Through OSPFv3...................................................................219

5.12.3 Example for Configuring the OSPFv3 Virtual Link...........................................................................224

5.12.4 Example for Configuring OSPFv3 GR................................................................................................228

6 IS-IS Configuration...................................................................................................................233

6.1 Basic Concepts of IS-IS..................................................................................................................................235

6.2 IS-IS Features Supported by the S6700..........................................................................................................236

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6.3 Configuring Basic IPv4 IS-IS Functions........................................................................................................243

6.3.1 Establishing the Configuration Task.....................................................................................................243

6.3.2 Creating IPv4 IS-IS Processes...............................................................................................................243

6.3.3 Configuring IPv4 IS-IS Interfaces.........................................................................................................246

6.3.4 (Optional) Configuring the IPv4 IS-IS Interfaces.................................................................................247

6.3.5 (Optional) Configuring IPv4 IS-IS Attributes for Interfaces on Different Types of Networks............250

6.3.6 Checking the Configuration...................................................................................................................252

6.4 Establishing or Maintaining IS-IS Neighbor Relationships or Adjacencies..................................................253

6.4.1 Establishing the Configuration Task.....................................................................................................253

6.4.2 Configuring IS-IS Timers for Packets...................................................................................................254

6.4.3 Configuring LSP Parameters.................................................................................................................256

6.4.4 Checking the Configuration...................................................................................................................259

6.5 Configuring IPv4 IS-IS Route Selection........................................................................................................260

6.5.1 Establishing the Configuration Task.....................................................................................................260

6.5.2 Configuring IPv4 IS-IS Route Leaking.................................................................................................261

6.5.3 Configuring Principles for Using Equal-Cost IPv4 IS-IS Routes.........................................................262

6.5.4 Filtering IPv4 IS-IS Routes...................................................................................................................263

6.5.5 Configuring an Overload Bit for an IPv4 IS-IS Device........................................................................264

6.5.6 Checking the Configuration...................................................................................................................265

6.6 Configuring IPv4 IS-IS Route Summarization...............................................................................................265

6.7 Configuring IPv4 IS-IS to Interact with Other Routing Protocols.................................................................266

6.7.1 Establishing the Configuration Task.....................................................................................................266

6.7.2 Configuring a Preference Value for IPv4 IS-IS.....................................................................................267

6.7.3 Configuring IPv4 IS-IS to Advertise a Default Route...........................................................................268

6.7.4 Configuring IPv4 IS-IS to Import External Routes...............................................................................269

6.7.5 Checking the Configuration...................................................................................................................270

6.8 Configuring the IPv4 IS-IS Route Convergence Speed.................................................................................271

6.8.1 Establishing the Configuration Task.....................................................................................................271

6.8.2 Configuring the Interval for Detecting IS-IS Neighboring Device Failures.........................................272

6.8.3 Setting Flooding Parameters of SNPs and LSPs...................................................................................273

6.8.4 Setting the SPF Calculation Interval.....................................................................................................277

6.8.5 Configuring Convergence Priorities for IPv4 IS-IS Routes..................................................................278

6.8.6 Checking the Configuration...................................................................................................................279

6.9 Configuring Static IPv4 BFD for IS-IS..........................................................................................................279

6.10 Configuring Dynamic IPv4 BFD for IS-IS...................................................................................................281

6.11 Configuring Basic IPv6 IS-IS Functions......................................................................................................284

6.11.1 Establishing the Configuration Task...................................................................................................284

6.11.2 Creating IPv6 IS-IS Processes.............................................................................................................285

6.11.3 Configuring IPv6 IS-IS Interfaces.......................................................................................................287

6.11.4 (Optional) Configuring the IPv6 IS-IS Interfaces...............................................................................288

6.11.5 (Optional) Configuring IPv6 IS-IS Attributes for Interfaces on Different Types of Networks..........291

6.11.6 Checking the Configuration.................................................................................................................294

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6.12 Configuring IPv6 IS-IS Route Selection......................................................................................................294

6.12.1 Establishing the Configuration Task...................................................................................................294

6.12.2 Configuring IPv6 IS-IS Route Leaking...............................................................................................295

6.12.3 Configuring Principles for Using Equal-Cost IPv6 IS-IS Routes.......................................................297

6.12.4 Filtering IPv6 IS-IS Routes.................................................................................................................297

6.12.5 Configuring an Overload Bit for an IPv6 IS-IS Device......................................................................298

6.12.6 Checking the Configuration.................................................................................................................299

6.13 Configuring IPv6 IS-IS Route Summarization.............................................................................................299

6.14 Configuring IPv6 IS-IS to Interact with Other Routing Protocols...............................................................300

6.14.1 Establishing the Configuration Task...................................................................................................300

6.14.2 Configuring a Preference Value for IPv6 IS-IS...................................................................................301

6.14.3 Configuring IPv6 IS-IS to Advertise a Default Route.........................................................................302

6.14.4 Configuring IPv6 IS-IS to Import External Routes.............................................................................303

6.14.5 Checking the Configuration.................................................................................................................304

6.15 Configuring the IPv6 IS-IS Route Convergence Speed...............................................................................304

6.15.1 Establishing the Configuration Task...................................................................................................305

6.15.2 Configuring the Interval for Detecting IS-IS Neighboring Device Failures.......................................306

6.15.3 Setting Flooding Parameters of SNPs and LSPs.................................................................................307

6.15.4 Setting the SPF Calculation Interval...................................................................................................311

6.15.5 Configuring Convergence Priorities for IPv6 IS-IS Routes................................................................311

6.15.6 Checking the Configuration.................................................................................................................312

6.16 Configuring IS-IS GR...................................................................................................................................313

6.16.1 Establishing the Configuration Task...................................................................................................313

6.16.2 Enabling IS-IS GR...............................................................................................................................314

6.16.3 Configuring Parameters of an IS-IS GR Session.................................................................................314

6.16.4 Checking the Configuration.................................................................................................................315

6.17 Maintaining IS-IS.........................................................................................................................................315

6.17.1 Resetting IS-IS Data Structure............................................................................................................315

6.17.2 Resetting a Specific IS-IS Neighbor....................................................................................................316

6.18 Configuration Examples...............................................................................................................................316

6.18.1 Example for Configuring Basic IS-IS Functions.................................................................................317

6.18.2 Example for Configuring IS-IS Route Aggregation............................................................................323

6.18.3 Example for Configuring the DIS Election of IS-IS...........................................................................327

6.18.4 Example for Configuring IS-IS Load Balancing.................................................................................333

6.18.5 Example for Configuring IS-IS GR.....................................................................................................338

6.18.6 Example for Configuring Static BFD for IS-IS...................................................................................342

6.18.7 Example for Configuring Dynamic BFD for IS-IS.............................................................................347

6.18.8 Example for Configuring Basic IS-IS IPv6 Functions........................................................................353

7 BGP Configuration....................................................................................................................360

7.1 BGP Overview................................................................................................................................................362

7.2 BGP Features Supported by the S6700..........................................................................................................362

7.3 Configuring Basic BGP Functions.................................................................................................................368

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7.3.1 Establishing the Configuration Task.....................................................................................................368

7.3.2 Starting a BGP Process..........................................................................................................................369

7.3.3 Configuring BGP Peers.........................................................................................................................370

7.3.4 Configuring BGP to Import Routes.......................................................................................................372

7.3.5 Checking the Configuration...................................................................................................................374

7.4 Configuring BGP Route Attributes................................................................................................................374

7.4.1 Establishing the Configuration Task.....................................................................................................374

7.4.2 Configuring the BGP Preference...........................................................................................................375

7.4.3 Configuring Preferred Values for BGP Routes.....................................................................................376

7.4.4 Configuring a Default Local_Pref Attribute for a Device.....................................................................377

7.4.5 Configuring MED Attributes for BGP Routes......................................................................................377

7.4.6 Configuring Next_Hop Attributes for Routes.......................................................................................379

7.4.7 Configuring AS_Path Attributes for Routes..........................................................................................380

7.4.8 Checking the Configuration...................................................................................................................383

7.5 Configuring BGP to Advertise Routes...........................................................................................................383

7.5.1 Establishing the Configuration Task.....................................................................................................384

7.5.2 Configuring BGP Filters........................................................................................................................384

7.5.3 Configuring to Controll the Advertisement of BGP Routing Information............................................390

7.5.4 Configuring BGP Soft Reset.................................................................................................................392

7.5.5 Checking the Configuration...................................................................................................................394

7.6 Configuring BGP to Receive Routes..............................................................................................................394

7.6.1 Establishing the Configuration Task.....................................................................................................394

7.6.2 Configuring BGP Filters........................................................................................................................395

7.6.3 Configuring to Controll the Acceptment of BGP Routing Information................................................401

7.6.4 Configuring BGP Soft Reset.................................................................................................................402

7.6.5 Checking the Configuration...................................................................................................................404

7.7 Configuring BGP Route Aggregation............................................................................................................405

7.8 Configuring BGP Peer Groups.......................................................................................................................407

7.8.1 Establishing the Configuration Task.....................................................................................................407

7.8.2 Creating IBGP Peer Groups..................................................................................................................408

7.8.3 Creating Pure EBGP Peer Groups.........................................................................................................408

7.8.4 Creating Mixed EBGP Peer Groups......................................................................................................409

7.8.5 Checking the Configuration...................................................................................................................410

7.9 Configuring BGP Route Reflectors................................................................................................................410

7.9.1 Establishing the Configuration Task.....................................................................................................411

7.9.2 Configuring a Route Reflector and Specifying Clients.........................................................................411

7.9.3 (Optional) Disabling Route Reflection Between Clients......................................................................412

7.9.4 (Optional) Configuring the Cluster ID for a Route Reflector................................................................413

7.9.5 (Optional) Preventing BGP Routes from Being Added into the IP Routing Table...............................415

7.9.6 Checking the Configuration...................................................................................................................415

7.10 Configuring a BGP Confederation...............................................................................................................416

7.11 Configuring BGP Community Attributes.....................................................................................................417

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7.11.1 Establishing the Configuration Task...................................................................................................417

7.11.2 Configuring Community Attribute-Related Routing Policies.............................................................418

7.11.3 Configuring a BGP Device to Send Community Attributes to Its Peer..............................................419

7.11.4 Checking the Configuration.................................................................................................................420

7.12 Configuring to Adjust the BGP Network Convergence Speed....................................................................420

7.12.1 Establishing the Configuration Task...................................................................................................420

7.12.2 Configuring a BGP ConnectRetry Timer............................................................................................421

7.12.3 Configuring BGP Keepalive and Hold Timers....................................................................................423

7.12.4 Configuring a MinRouteAdvertisementIntervalTimer........................................................................424

7.12.5 Disabling Fast Reset of EBGP Connections........................................................................................425

7.12.6 Enabling BGP Tracking.......................................................................................................................426

7.12.7 Checking the Configuration.................................................................................................................427

7.13 Configuring BGP Route Dampening............................................................................................................427

7.14 Configuring a BGP Device to Send a Default Route to Its Peer..................................................................429

7.15 Configuring BGP Load Balancing...............................................................................................................431

7.16 Configuring the BGP Next Hop Delayed Response.....................................................................................433

7.17 Configuring BFD for BGP...........................................................................................................................435

7.18 Configuring BGP Security............................................................................................................................438

7.18.1 Establishing the Configuration Task...................................................................................................438

7.18.2 Configuring MD5 Authentication.......................................................................................................439

7.18.3 Configuring BGP GTSM.....................................................................................................................440

7.18.4 Checking the Configuration.................................................................................................................441

7.19 Maintaining BGP..........................................................................................................................................442

7.19.1 Resetting BGP Connections................................................................................................................442

7.19.2 Clearing BGP Information...................................................................................................................443

7.20 Configuration Examples...............................................................................................................................443

7.20.1 Example for Configuring Basic BGP Functions.................................................................................443

7.20.2 Example for Configuring AS-Path Filter.............................................................................................449

7.20.3 Example for Configuring BGP to Interact with an IGP......................................................................455

7.20.4 Example for Configuring BGP Load Balancing and the MED...........................................................459

7.20.5 Example for Configuring the BGP Community Attribute...................................................................464

7.20.6 Example for Configuring a BGP RR...................................................................................................468

7.20.7 Example for Configuring a BGP Confederation.................................................................................474

7.20.8 Example for Configuring BFD for BGP..............................................................................................481

7.20.9 Example for Configuring BGP GTSM................................................................................................487

8 BGP4+ Configuration...............................................................................................................496

8.1 BGP4+ Overview...........................................................................................................................................498

8.2 BGP4+ Features Supported by the S6700......................................................................................................498

8.3 Configuring Basic BGP4+ Functions.............................................................................................................499

8.3.1 Establishing the Configuration Task.....................................................................................................499

8.3.2 Starting a BGP Process..........................................................................................................................499

8.3.3 Configuring an IPv6 Peer......................................................................................................................500

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8.3.4 (Optional) Configuring the Local Interfaces Used for BGP4+ Connections........................................502

8.3.5 Checking the Configuration...................................................................................................................503

8.4 Configuring BGP4+ Route Attributes............................................................................................................503

8.4.1 Establishing the Configuration Task.....................................................................................................503

8.4.2 Configuring the BGP4+ Preference.......................................................................................................504

8.4.3 Configuring BGP4+ Preferred Value for Routing Information.............................................................505

8.4.4 Configuring the Default Local_Pref Attribute of the Local Router......................................................506

8.4.5 Configuring the MED Attribute............................................................................................................506

8.4.6 Configuring the Next_Hop Attribute.....................................................................................................507

8.4.7 Configuring the AS-Path Attribute........................................................................................................508

8.4.8 Configuring the BGP4+ Community Attribute.....................................................................................509

8.4.9 Checking the Configuration...................................................................................................................511

8.5 Controlling the Advertising and Receiving of BGP4+ Routing Information.................................................511

8.5.1 Establishing the Configuration Task.....................................................................................................511

8.5.2 Configuring BGP4+ to Advertise Local IPv6 Routes...........................................................................512

8.5.3 Configuring BGP4+ Route Aggregation...............................................................................................513

8.5.4 Configuring BGP4+ to Import and Filter External Routes....................................................................514

8.5.5 Configuring ses to Advertise Default Routes to Peers..........................................................................515

8.5.6 Configuring the Policy for Advertising BGP4+ Routing Information..................................................515

8.5.7 Configuring the Policy for Receiving BGP4+ Routing Information.....................................................516

8.5.8 Configuring BGP4+ Soft Resetting.......................................................................................................517

8.5.9 Checking the Configuration...................................................................................................................519

8.6 Configuring Parameters of a Connection Between BGP4+ Peers..................................................................519

8.6.1 Establishing the Configuration Task.....................................................................................................519

8.6.2 Configuring BGP4+ Timers..................................................................................................................520

8.6.3 Setting the BGP4+ ConnectRetry Interval............................................................................................521

8.6.4 Checking the Configuration...................................................................................................................522

8.7 Configuring BGP4+ Tracking........................................................................................................................522

8.7.1 Establishing the Configuration Task.....................................................................................................523

8.7.2 Enabling BGP4+ Tracking....................................................................................................................523

8.7.3 Checking the Configuration...................................................................................................................524

8.8 Configuring BGP4+ Route Dampening.........................................................................................................524

8.8.1 Establishing the Configuration Task.....................................................................................................524

8.8.2 Enabling BGP4+ Route Dampening......................................................................................................525

8.8.3 Checking the Configuration...................................................................................................................526

8.9 Configuring BGP4+ Load Balancing.............................................................................................................526

8.10 Configuring a BGP4+ Peer Group................................................................................................................529

8.10.1 Establishing the Configuration Task...................................................................................................529

8.10.2 Creating an IBGP Peer Group.............................................................................................................530

8.10.3 Creating a Pure EBGP Peer Group......................................................................................................531

8.10.4 Creating a Mixed EBGP Peer Group...................................................................................................532

8.10.5 Checking the Configuration.................................................................................................................533

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8.11 Configuring a BGP4+ Route Reflector........................................................................................................533

8.11.1 Establishing the Configuration Task...................................................................................................533

8.11.2 Configuring a Route Reflector and Specifying Clients.......................................................................533

8.11.3 (Optional) Disabling a Route Reflection Between Clients..................................................................534

8.11.4 (Optional) Configuring the Cluster ID for a Route Reflector..............................................................535

8.11.5 Checking the Configuration.................................................................................................................535

8.12 Configuring a BGP4+ Confederation...........................................................................................................536

8.12.1 Establishing the Configuration Task...................................................................................................536

8.12.2 Configuring a BGP4+ Confederation Attribute...................................................................................536

8.12.3 Checking the Configuration.................................................................................................................537

8.13 Configuring BGP4+ Security.......................................................................................................................538

8.13.1 Establishing the Configuration Task...................................................................................................538

8.13.2 Configuring MD5 Authentication.......................................................................................................538

8.13.3 Configuring Basic BGP4+ GTSM Functions......................................................................................539

8.13.4 Checking the Configuration.................................................................................................................540

8.14 Maintaining BGP4+......................................................................................................................................541

8.14.1 Resetting BGP4+ Connections............................................................................................................541

8.14.2 Clearing BGP4+ Statistics...................................................................................................................541

8.15 Configuration Examples...............................................................................................................................542

8.15.1 Example for Configuring Basic BGP4+ Functions.............................................................................542

8.15.2 Example for Configuring BGP4+ Route Reflectors............................................................................548

9 MBGP Configuration................................................................................................................554

9.1 MBGP Overview............................................................................................................................................555

9.2 MBGP Features Supported by the S6700.......................................................................................................555

9.3 Configuring Basic MBGP Functions..............................................................................................................555

9.3.1 Establishing the Configuration Task.....................................................................................................555

9.3.2 Configuring a BGP Peer........................................................................................................................556

9.3.3 Configuring an MBGP Peer..................................................................................................................557

9.3.4 Configuring an MBGP Route Reflector................................................................................................557

9.3.5 Configuring MBGP to Import Local Routes.........................................................................................558

9.3.6 Checking the Configuration...................................................................................................................560

9.4 Configuring the Policy for Advertising MBGP Routes..................................................................................560

9.4.1 Establishing the Configuration Task.....................................................................................................560

9.4.2 (Optional) Configuring the Next Hop of a Route as the Local Address...............................................561

9.4.3 (Optional) Configuring the Aggregation of Local MBGP Routes........................................................562

9.4.4 (Optional) Configuring the Local Peer to Advertise Default Routes....................................................563

9.4.5 Configuring the Local Peer to Advertise Community Attribute and Extended Community Attribute

........................................................................................................................................................................563

9.4.6 Configuring Update Packets not to Carry Private AS Number.............................................................564

9.4.7 Checking the Configuration...................................................................................................................565

9.5 Configuring the Policy for Exchanging Routes Between MBGP Peers.........................................................566

9.5.1 Establishing the Configuration Task.....................................................................................................566

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9.5.2 Configuring the Route Filtering Policy Globally..................................................................................567

9.5.3 Configuring the Route Filtering Policy Based on Route-policy............................................................568

9.5.4 Configuring the Route Filtering Policy Based on ACL........................................................................569

9.5.5 Configuring the Route Filtering Policy Based on AS-Path List............................................................570

9.5.6 Configuring the Route Filtering Policy Based on IP Prefix..................................................................570

9.5.7 Configuring the Maximum Number of Routes Received from Peers...................................................571

9.5.8 Checking the Configuration...................................................................................................................572

9.6 Configuring MBGP Route Attributes.............................................................................................................573

9.6.1 Establishing the Configuration Task.....................................................................................................573

9.6.2 Setting Preferred Values of Routes Learned from Peers.......................................................................574

9.6.3 Configuring the Preference of an MBGP Route....................................................................................574

9.6.4 Configuring the Local-Pref of an MBGP Route....................................................................................575

9.6.5 Configuring the MED Attribute of an MBGP Route............................................................................576

9.6.6 Configuring Next_Hop..........................................................................................................................577

9.6.7 Checking the Configuration...................................................................................................................578

9.7 Configuring MBGP Route Dampening..........................................................................................................578

9.7.1 Establishing the Configuration Task.....................................................................................................578

9.7.2 Enabling Dampening Parameters of an MBGP Route..........................................................................579

9.7.3 Checking the Configuration...................................................................................................................580

9.8 Maintaining MBGP........................................................................................................................................580

9.8.1 Resetting MBGP Connection................................................................................................................580

9.8.2 Clearing MBGP Statistics......................................................................................................................581

9.8.3 Debugging MBGP.................................................................................................................................581

9.9 Configuration Examples.................................................................................................................................582

9.9.1 Example for Configuring Basic MBGP Functions................................................................................582

10 Routing Policy Configuration...............................................................................................591

10.1 Overview of the Routing Policy...................................................................................................................592

10.2 Routing Policy Features Supported by the S6700........................................................................................593

10.3 Configuring the IP-Prefix List......................................................................................................................594

10.3.1 Establishing the Configuration Task...................................................................................................594

10.3.2 Configuring an IPv4 Prefix List..........................................................................................................595

10.3.3 Configuring an IPv6 Prefix List..........................................................................................................596

10.3.4 Checking the Configuration.................................................................................................................597

10.4 Configuring the Route-Policy.......................................................................................................................597

10.4.1 Establishing the Configuration Task...................................................................................................597

10.4.2 Creating a Route-Policy.......................................................................................................................598

10.4.3 (Optional) Configuring the If-Match Clause.......................................................................................599

10.4.4 (Optional) Configuring the Apply Clause...........................................................................................600

10.4.5 Checking the Configuration.................................................................................................................601

10.5 Applying Filters to Received Routes............................................................................................................602

10.5.1 Establishing the Configuration Task...................................................................................................602

10.5.2 Filtering Routes Received by RIP.......................................................................................................603

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10.5.3 Filtering Routes Received by OSPF....................................................................................................603

10.5.4 Filtering Routes Received by IS-IS.....................................................................................................604

10.5.5 Filtering Routes Received by BGP......................................................................................................604

10.5.6 Checking the Configuration.................................................................................................................605

10.6 Applying Filters to Advertised Routes.........................................................................................................606

10.6.1 Establishing the Configuration Task...................................................................................................606

10.6.2 Filtering Routes Advertised by RIP.....................................................................................................607

10.6.3 Filtering Routes Advertised by OSPF.................................................................................................608

10.6.4 Filtering Routes Advertised by IS-IS..................................................................................................608

10.6.5 Filtering Routes Advertised by BGP...................................................................................................609

10.6.6 Checking the Configuration.................................................................................................................610

10.7 Applying Filters to Imported Routes............................................................................................................610

10.7.1 Establishing the Configuration Task...................................................................................................611

10.7.2 Applying Route-Policy to Routes Imported by RIP............................................................................611

10.7.3 Applying Route-Policy to Routes Imported by OSPF.........................................................................612

10.7.4 Applying Route-Policy to Routes Imported by IS-IS..........................................................................612

10.7.5 Applying Route-Policy to Routes Imported by BGP..........................................................................613

10.7.6 Checking the Configuration.................................................................................................................614

10.8 Controlling the Valid Time of the Routing policy.......................................................................................614

10.8.1 Establishing the Configuration Task...................................................................................................614

10.8.2 Configuring the Delay for Applying the Routing Policy....................................................................615

10.8.3 Checking the Configuration.................................................................................................................616

10.9 Maintaining the Routing Policy....................................................................................................................616

10.10 Configuration Examples.............................................................................................................................616

10.10.1 Example for Filtering Received and Advertised Routes...................................................................617

10.10.2 Example for Applying a Routing Policy to Imported Routes...........................................................621

11 MCE Configuration.................................................................................................................627

11.1 MCE Overview.............................................................................................................................................628

11.2 MCE Functions Supported by the S6700.....................................................................................................629

11.3 Configuring a VPN Instance.........................................................................................................................630

11.3.1 Establishing the Configuration Task...................................................................................................630

11.3.2 Creating a VPN instance......................................................................................................................630

11.3.3 Binding a VPN Instance to a VLANIF Interface.................................................................................631

11.3.4 Checking the Configuration.................................................................................................................632

11.4 Configuring a Route Multi-Instance Between an MCE and a Site...............................................................632

11.4.1 Establishing the Configuration Task...................................................................................................632

11.4.2 (Optional) Configuring a Static Route Between an MCE and a Site..................................................633

11.4.3 (Optional) Configuring RIP Between an MCE and a Site...................................................................634

11.4.4 (Optional) Configuring OSPF Between an MCE and a Site...............................................................634

11.4.5 (Optional) Configuring IS-IS Between an MCE and a Site................................................................635

11.4.6 (Optional) Configuring BGP Between an MCE and a Site.................................................................635

11.4.7 Checking the Configuration.................................................................................................................636

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11.5 Configuring a Route Multi-Instance Between an MCE and a PE................................................................636

11.5.1 Establishing the Configuration Task...................................................................................................636

11.5.2 (Optional) Configuring a Static Route Between an MCE and a PE....................................................637

11.5.3 (Optional) Configuring RIP Between an MCE and a PE....................................................................638

11.5.4 (Optional) Configuring OSPF Between an MCE and a PE.................................................................638

11.5.5 (Optional) Configuring IS-IS Between an MCE and a PE..................................................................639

11.5.6 (Optional) Configuring BGP Between an MCE and a PE...................................................................639

11.5.7 Checking the Configuration.................................................................................................................640

11.6 MCE Configuration Examples.....................................................................................................................640

11.6.1 Example for Configuring MCE...........................................................................................................640

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1 IP Static Route Configuration

About This Chapter

Static routes are commonly used on simple networks. Properly configuring and using static

routes can improve network performance and help ensure enough bandwidth is available for

important services.

1.1 Static Route

Static routes are special routes that network administrators must manually configure.

1.2 Static Routing Features Supported by the S6700

The system supports various static route features, including IPv4 static routes, IPv6 static

routes, default routes, BFD for IPv4 static routes.

1.3 Configuring an IPv4 Static Route

On an IPv4 network, you can accurately control route selection by configuring IPv4 static routes.

1.4 Configuring an IPv6 Static Route

On an IPv6 network, you can accurately control route selection by configuring IPv6 static routes.

1.5 Configuring BFD for IPv4 Static Routes on the Public Network

On an IPv4 network, configuring BFD for IPv4 static routes on the public network can speed

up route convergence and improve network reliability.

1.6 Configuration Examples

This section provides configuration examples of static routes.

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