Alcatel-Lucent Service Aggregation Router 7705 Configuration manual

Alcatel-Lucent 7705

SERVICE AGGREGATION ROUTER OS | RELEASE 6.2.R1

ROUTER CONFIGURATION GUIDE

Alcatel-Lucent – Proprietary & Confidential

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7705 SAR OS Router Configuration Guide 3

Table of Contents

Preface................................................................................................................................................... 13

About This Guide................................................................................................................................................13

Audience .......................................................................................................................................................13

List of Technical Publications ........................................................................................................................14

Technical Support .........................................................................................................................................15

Getting Started...................................................................................................................................... 17

In This Chapter ...................................................................................................................................................17

Alcatel-Lucent 7705 SAR Router Configuration Process ...................................................................................17

IP Router Configuration ...................................................................................................................... 19

In This Chapter ...................................................................................................................................................19

Configuring IP Router Parameters .....................................................................................................................20

Interfaces.......................................................................................................................................................20

Network Interface .....................................................................................................................................21

System Interface ......................................................................................................................................25

IP Addresses .................................................................................................................................................26

Internet Protocol Versions .............................................................................................................................27

IPv6 Address Format ...............................................................................................................................28

IPv6 Headers ...........................................................................................................................................29

Neighbor Discovery ..................................................................................................................................30

Router ID .......................................................................................................................................................31

Autonomous Systems ...................................................................................................................................32

DHCP ............................................................................................................................................................32

DHCP Relay and DHCPv6 Relay.............................................................................................................33

Local DHCP Server ..................................................................................................................................34

ICMP and ICMPv6.........................................................................................................................................36

Static Routes, Dynamic Routes, and ECMP .................................................................................................38

IGP-LDP and Static Route-LDP Synchronization..........................................................................................40

Bidirectional Forwarding Detection (BFD) .....................................................................................................41

NAT ...............................................................................................................................................................41

Session Creation......................................................................................................................................42

NAT Zones ...............................................................................................................................................43

NAT Security Profile .................................................................................................................................47

NAT Policies.............................................................................................................................................49

Dynamic Source NAT ..............................................................................................................................50

Local Traffic and NAT .............................................................................................................................51

Port Forwarding (Static Destination NAT) ................................................................................................51

Session Resource Alarms........................................................................................................................52

NAT Support for Fragmented Packets .....................................................................................................53

Router Configuration Process Overview ............................................................................................................55

Configuration Notes............................................................................................................................................56

Reference Sources........................................................................................................................................56

Configuring an IP Router with CLI ......................................................................................................................57

Router Configuration Overview ..........................................................................................................................58

System Interface ...........................................................................................................................................58

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4 7705 SAR OS Router Configuration Guide

Network Interface ..........................................................................................................................................59

Basic Configuration ............................................................................................................................................60

Common Configuration Tasks ............................................................................................................................61

Configuring a System Name .........................................................................................................................61

Configuring Interfaces ...................................................................................................................................62

Configuring a System Interface................................................................................................................62

Configuring a Network Interface...............................................................................................................63

Configuring IPv6 Parameters ........................................................................................................................65

Configuring Router Advertisement ................................................................................................................66

Configuring ECMP.........................................................................................................................................67

Configuring Static Routes..............................................................................................................................68

Configuring or Deriving a Router ID ..............................................................................................................68

Configuring an Autonomous System .............................................................................................................69

Configuring ICMP and ICMPv6 .....................................................................................................................70

Configuring a DHCP Relay Agent .................................................................................................................71

Configuring Proxy ARP .................................................................................................................................72

Configuring a NAT Zone................................................................................................................................74

Service Management Tasks ...............................................................................................................................76

Changing the System Name .........................................................................................................................76

Modifying Interface Parameters ....................................................................................................................77

Deleting a Logical IP Interface ......................................................................................................................78

IP Router Command Reference .........................................................................................................................79

Command Hierarchies...................................................................................................................................79

Configuration Commands ........................................................................................................................80

Show Commands.....................................................................................................................................86

Clear Commands .....................................................................................................................................87

Debug Commands ...................................................................................................................................88

Command Descriptions .................................................................................................................................89

Configuration Commands ........................................................................................................................90

Show Commands...................................................................................................................................146

Clear Commands ...................................................................................................................................199

Debug Commands .................................................................................................................................205

VRRP ................................................................................................................................................... 211

In This Chapter .................................................................................................................................................211

VRRP Overview................................................................................................................................................212

VRRP Components ..........................................................................................................................................213

Virtual Router ..............................................................................................................................................213

IP Address Owner .......................................................................................................................................213

Primary Address..........................................................................................................................................214

Virtual Router Master ..................................................................................................................................214

Owner and Non-owner VRRP .....................................................................................................................215

Configurable Parameters ............................................................................................................................215

VRID.......................................................................................................................................................216

Priority ....................................................................................................................................................216

IP Addresses..........................................................................................................................................217

Message Interval and Master Inheritance ..............................................................................................217

Master Down Interval .............................................................................................................................218

Skew Time .............................................................................................................................................218

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7705 SAR OS Router Configuration Guide 5

Preempt Mode........................................................................................................................................218

VRRP Message Authentication ..............................................................................................................219

Virtual MAC Address ..............................................................................................................................219

VRRP Advertisement Message IP Address List Verification..................................................................219

Policies...................................................................................................................................................220

VRRP Priority Control Policies .........................................................................................................................221

VRRP Policy Constraints.............................................................................................................................221

VRRP Base Priority .....................................................................................................................................221

VRRP Priority Control Policy In-use Priority ................................................................................................222

VRRP Priority Control Policy Priority Events ...............................................................................................222

Priority Event Hold-set Timers ...............................................................................................................223

Port Down Priority Event ........................................................................................................................223

Host Unreachable Priority Event ............................................................................................................224

Route Unknown Priority Event ...............................................................................................................224

VRRP Non-owner Accessibility ........................................................................................................................225

Non-owner Access Ping Reply....................................................................................................................225

Non-owner Access Telnet ...........................................................................................................................225

Non-owner Access SSH..............................................................................................................................226

VRRP Configuration Process Overview ...........................................................................................................227

Configuration Notes..........................................................................................................................................228

General........................................................................................................................................................228

Configuring VRRP with CLI ..............................................................................................................................229

VRRP Configuration Overview .........................................................................................................................230

Preconfiguration Requirements...................................................................................................................230

Basic VRRP Configurations..............................................................................................................................231

VRRP Policy................................................................................................................................................231

Deleting a VRRP Policy .........................................................................................................................232

VRRP IES or VPRN Service Parameters....................................................................................................232

Common Configuration Tasks ..........................................................................................................................234

Configuring IES/VPRN VRRP Parameters.......................................................................................................235

Configuring VRRP on Subnets ....................................................................................................................235

Non-owner VRRP........................................................................................................................................236

Owner VRRP...............................................................................................................................................236

Deleting VRRP on a Service .......................................................................................................................237

VRRP Command Reference ............................................................................................................................239

Command Hierarchies.................................................................................................................................239

VRRP Priority Control Event Policy Commands .........................................................................................240

VRRP Show Commands .............................................................................................................................241

VRRP Monitor Commands ..........................................................................................................................241

VRRP Clear Commands .............................................................................................................................241

VRRP Debug Commands ...........................................................................................................................241

Command Descriptions ...............................................................................................................................242

Configuration Commands ......................................................................................................................243

VRRP Show Commands ........................................................................................................................260

VRRP Monitor Commands .....................................................................................................................268

VRRP Clear Commands ............................................................................................................

............270

VRRP Debug Commands ......................................................................................................................271

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6 7705 SAR OS Router Configuration Guide

Filter Policies ...................................................................................................................................... 273

In This Chapter .................................................................................................................................................273

Configuring Filter Policies.................................................................................................................................274

Overview of Filter Policies ...........................................................................................................................274

Network and Service (Access) Interface-based Filtering ............................................................................276

Policy-Based Routing ..................................................................................................................................277

Multi-field Classification (MFC)....................................................................................................................279

VLAN-based Filtering ..................................................................................................................................280

Filter Policy Entries......................................................................................................................................280

Applying Filter Policies ...........................................................................................................................281

Packet Matching Criteria ........................................................................................................................282

Ordering Filter Entries ............................................................................................................................285

Filter Log Files.............................................................................................................................................287

Configuration Notes..........................................................................................................................................288

IP Filters ......................................................................................................................................................288

IPv6 Filters ..................................................................................................................................................289

MAC Filters..................................................................................................................................................289

VLAN Filters ................................................................................................................................................290

Filter Logs....................................................................................................................................................290

Reference Sources......................................................................................................................................290

Configuring Filter Policies with CLI ...................................................................................................................291

Basic Configuration ..........................................................................................................................................292

Common Configuration Tasks ..........................................................................................................................293

Creating an IPv4 or IPv6 Filter Policy..........................................................................................................293

IP Filter Policy ........................................................................................................................................293

IP Filter Entry .........................................................................................................................................295

IP Filter Entry Matching Criteria .............................................................................................................296

IP Filter Entry for PBR to a System IP or Loopback Address ................................................................298

Creating a MAC Filter Policy .......................................................................................................................300

MAC Filter Policy....................................................................................................................................300

MAC Filter Entry .....................................................................................................................................301

MAC Entry Matching Criteria..................................................................................................................302

Creating a VLAN Filter Policy......................................................................................................................303

VLAN Filter Policy ..................................................................................................................................303

VLAN Filter Entry ...................................................................................................................................304

VLAN Entry Matching Criteria ................................................................................................................305

Configuring Filter Log Policies.....................................................................................................................306

Configuring a NAT Security Profile..............................................................................................................307

Configuring a NAT Security Policy ..............................................................................................................308

Applying IP and MAC Filter Policies to a Service........................................................................................310

Applying IP Filter Policies to Network Interfaces ........................................................................................312

Applying VLAN Filter Policies to a Ring Port...............................................................................................313

Filter Management Tasks .................................................................................................................................314

Renumbering Filter Policy Entries ...............................................................................................................314

Modifying an IP Filter Policy ........................................................................................................................317

Modifying a MAC Filter Policy .....................................................................................................................318

Modifying a VLAN Filter Policy ....................................................................................................................319

Removing and Deleting a Filter Policy ........................................................................................................320

Removing a Filter from a Service ...........................................................................................................320

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7705 SAR OS Router Configuration Guide 7

Removing a Filter from a Network Interface...........................................................................................321

Removing a Filter from a Ring Port ........................................................................................................322

Deleting a Filter ......................................................................................................................................322

Filter Command Reference ..............................................................................................................................323

Command Hierarchies.................................................................................................................................323

Configuration Commands ......................................................................................................................324

Show Commands...................................................................................................................................329

Clear Commands ...................................................................................................................................329

Monitor Commands................................................................................................................................329

Debug Commands .................................................................................................................................330

Command Descriptions ...............................................................................................................................331

Configuration Commands ......................................................................................................................332

Show Commands...................................................................................................................................374

Clear Commands ...................................................................................................................................404

Monitor Commands................................................................................................................................407

Debug Commands .................................................................................................................................409

Route Policies..................................................................................................................................... 411

In This Chapter .................................................................................................................................................411

Configuring Route Policies ...............................................................................................................................412

Routing Policy and MPLS............................................................................................................................412

Policy Statements........................................................................................................................................413

Default Action Behavior..........................................................................................................................413

Denied IP Prefixes .................................................................................................................................414

Controlling Route Flapping.....................................................................................................................414

Regular Expressions ...................................................................................................................................416

BGP and OSPF Route Policy Support ........................................................................................................420

BGP Route Policies................................................................................................................................421

Readvertised Route Policies ..................................................................................................................422

When to Use Route Policies........................................................................................................................422

Route Policy Configuration Process Overview .................................................................................................423

Configuration Notes..........................................................................................................................................424

Reference Sources......................................................................................................................................424

Configuring Route Policies with CLI ................................................................................................................425

Route Policy Configuration Overview ...............................................................................................................426

When to Create Routing Policies ................................................................................................................426

Default Route Policy Actions .......................................................................................................................427

Policy Evaluation .........................................................................................................................................428

Damping.................................................................................................................................................431

Basic Route Policy Configuration .....................................................................................................................433

Configuring Route Policy Components.............................................................................................................435

Beginning the Policy Statement .................................................................................................................436

Creating a Route Policy...............................................................................................................................436

Configuring a Default Action .......................................................................................................................438

Configuring an Entry....................................................................................................................................439

Configuring an AS Path (policy-option) .......................................................................................................441

Configuring a Community List .....................................................................................................................441

Configuring Damping...................................................................................................................................442

Configuring a Prefix List ..............................................................................................................................443

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8 7705 SAR OS Router Configuration Guide

Configuring PIM Join Policies......................................................................................................................444

Configuring Bootstrap Message Import and Export Policies .......................................................................445

Route Policy Configuration Management Tasks ..............................................................................................446

Editing Policy Statements and Parameters .................................................................................................446

Deleting an Entry .........................................................................................................................................447

Deleting a Policy Statement ........................................................................................................................448

Route Policy Command Reference ..................................................................................................................449

Command Hierarchies.................................................................................................................................449

Route Policy Configuration Commands .................................................................................................450

Show Commands...................................................................................................................................452

Command Descriptions ...............................................................................................................................453

Configuration Commands ......................................................................................................................454

Show Commands...................................................................................................................................480

Standards and Protocol Support ...................................................................................................... 511

7705 SAR OS Router Configuration Guide 9

List of Tables

Getting Started...................................................................................................................................... 17

Table 1 Configuration Process ..................................................................................................................17

IP Router Configuration ...................................................................................................................... 19

Table 2 IPv6 Header Field Descriptions ....................................................................................................29

Table 3 ICMP Capabilities for IPv4 ...........................................................................................................36

Table 4 ICMPv6 Capabilities for IPv6 .......................................................................................................37

Table 5 NAT Profile Attributes ...................................................................................................................47

Table 6 NAT Policy Attributes and Packet Matching Criteria .....................................................................49

Table 7 Session Resource Utilization Alarms ............................................................................................53

Table 8 Route Preference Defaults by Route Type ..................................................................................96

Table 9 Show ARP Table Output Fields ..................................................................................................147

Table 10 Show Authentication Statistics Output Fields .............................................................................148

Table 11 Show BFD Interface Output Fields .............................................................................................149

Table 12 Show BFD Session Output Fields ...............................................................................................150

Table 13 Show DHCP Server Associations Output Fields .........................................................................151

Table 14 Show DHCP Server Declined Addresses Output Fields .............................................................152

Table 15 Show DHCP Server Free Addresses Output Fields ...................................................................154

Table 16 Show DHCP Server Lease Output Fields ...................................................................................154

Table 17 Show DHCP Server Statistics Output Fields ..............................................................................156

Table 18 Show DHCP Server Subnet Statistics Output Fields ..................................................................159

Table 19 Show DHCP Server Summary Output Fields .............................................................................160

Table 20 Show DHCP Server Output Fields ..............................................................................................161

Table 21 Show DHCP Statistics Output Fields ..........................................................................................162

Table 22 Show DHCPv6 Statistics Output Fields ......................................................................................164

Table 23 Show DHCP Summary Output Fields ........................................................................................164

Table 24 Show DHCPv6 Summary Output Fields ....................................................................................165

Table 25 Show ECMP Settings Output Fields ...........................................................................................166

Table 26 Show FIB Output Fields ..............................................................................................................168

Table 27 Show ICMPv6 Output Fields .......................................................................................................170

Table 28 Show ICMPv6 Interface Output Fields ........................................................................................171

Table 29 Show Standard IP Interface Output Fields ..................................................................................173

Table 30 Show Summary IP Interfaces Output Fields ...............................................................................174

Table 31 Show Detailed IP Interface Output Fields ...................................................................................177

Table 32 Show IPv6 Neighbor Output Fields ............................................................................................188

Table 33 Show Standard Route Table Output Fields ...............................................................................190

Table 34 Show Router Advertisement Output Fields ................................................................................191

Table 35 Show Static ARP Table Output Fields .......................................................................................193

Table 36 Show Static Route Table Output Fields .....................................................................................195

Table 37 Show Router Status Output Fields ..............................................................................................197

Table 38 Show Tunnel Table Output Fields ..............................................................................................198

VRRP ................................................................................................................................................... 211

Table 39 Show VRRP Policy and Policy Event Summary Output Fields ..................................................263

Table 40 Show Router VRRP Instance Summary Output Fields ..............................................................266

List of Tables

10 7705 SAR OS Router Configuration Guide

Filter Policies ...................................................................................................................................... 273

Table 41 IP Filter Policy Criteria ................................................................................................................283

Table 42 MAC Filter Policy Criteria ............................................................................................................284

Table 43 VLAN Filter Policy Criteria ..........................................................................................................285

Table 44 MAC Match Criteria Exclusivity Rules .........................................................................................289

Table 45 PBR CSM Extraction Queue Parameters ..................................................................................298

Table 46 8-bit mask formats ......................................................................................................................354

Table 47 Show Filter Output Fields ............................................................................................................375

Table 48 Show Filter Output Fields (Filter ID Specified) ............................................................................376

Table 49 Show Filter Associations Output Fields ......................................................................................379

Table 50 Show Filter Counters Output Fields ............................................................................................381

Table 51 Show Filter Log Output Fields .....................................................................................................383

Table 52 Show Filter Log Bindings ............................................................................................................384

Table 53 Show Filter MAC (No Filter- D Specified) ...................................................................................386

Table 54 Show Filter MAC (Filter ID Specified) .........................................................................................387

Table 55 Show Filter MAC Associations ....................................................................................................389

Table 56 Show Filter MAC Counters .........................................................................................................390

Table 57 Show Filter VLAN (No Filter Specified) .......................................................................................391

Table 58 Show Filter VLAN (Filter ID Specified) ........................................................................................392

Table 59 Show Security Policy Output Fields (Detail) ...............................................................................395

Table 60 Show Security Profile Output Fields (Detail) ...............................................................................398

Route Policies..................................................................................................................................... 411

Table 61 Regular Expression Operators ....................................................................................................417

Table 62 AS Path and Community Regular Expression Examples ...........................................................418

Table 63 Show Route Policy Output Fields ..............................................................................................485

List of Acronyms ................................................................................................................................ 487

Table 64 Acronyms ...................................................................................................................................487

Standards and Protocol Support ...................................................................................................... 511

Table 65 EMC Industrial Standards Compliance .......................................................................................512

Table 66 EMC Regulatory and Customer Standards Compliance .............................................................513

Table 67 Environmental Standards Compliance ........................................................................................515

Table 68 Safety Standards Compliance ....................................................................................................516

Table 69 Directives, Regional Approvals and Certifications Compliance ..................................................517

7705 SAR OS Router Configuration Guide 11

List of Figures

IP Router Configuration ...................................................................................................................... 19

Figure 1 IPv6 Header Format.......................................................................................................................29

Figure 2 Zone Configuration in a Mobile Backhaul Network ........................................................................43

Figure 3 Zone Direction (Inbound) ...............................................................................................................45

Figure 4 Zone Direction (Outbound) ............................................................................................................46

Figure 5 Static Port Forwarding with NAT....................................................................................................52

Figure 6 IP Router Configuration Flow.........................................................................................................55

VRRP ................................................................................................................................................... 211

Figure 7 VRRP Configuration.....................................................................................................................212

Figure 8 VRRP Configuration.....................................................................................................................227

Filter Policies ...................................................................................................................................... 273

Figure 9 PBR Filtering Based on the DSCP of Incoming Packets .............................................................278

Figure 10 Creating and Applying Filter Policies ...........................................................................................282

Figure 11 Filtering Process Example ...........................................................................................................286

Route Policies..................................................................................................................................... 411

Figure 12 BGP Route Policy Diagram .........................................................................................................421

Figure 13 OSPF Route Policy Diagram ......................................................................................................421

Figure 14 Route Policy Configuration and Implementation Flow .................................................................423

Figure 15 Route Policy Process Example....................................................................................................429

Figure 16 Next Policy Logic Example .........................................................................................................430

Figure 17 Next Entry Logic Example ...........................................................................................................431

Figure 18 Damping Example........................................................................................................................432

List of Figures

12 7705 SAR OS Router Configuration Guide

7705 SAR OS Router Configuration Guide 13

Preface

About This Guide

This guide describes logical IP routing interfaces, filtering, and routing policy support

provided by the 7705 Service Aggregation Router and presents configuration and

implementation examples.

The guide is organized into functional chapters and provides concepts and descriptions of the

implementation flow, as well as Command Line Interface (CLI) syntax and command usage.

Audience

This guide is intended for network administrators who are responsible for configuring the

7705 SAR routers. It is assumed that the network administrators have an understanding of

networking principles and configurations. Concepts described in this guide include the

following:

• IP router configuration

• IP, MAC, and VLAN filters

• routing policy options

Note: This manual generically covers Release 6.2 content and may contain some content

that will be released in later maintenance loads. Please refer to the 7705 SAR OS 6.2.Rx

Software Release Notes, part number 3HE09585000xTQZZA, for information on features

supported in each load of the Release 6.2 software.

About This Guide

14 7705 SAR OS Router Configuration Guide

List of Technical Publications

The 7705 SAR OS documentation set is composed of the following guides:

• 7705 SAR OS Basic System Configuration Guide

This guide describes basic system configurations and operations.

• 7705 SAR OS System Management Guide

This guide describes system security and access configurations as well as event

logging and accounting logs.

• 7705 SAR OS Interface Configuration Guide

This guide describes card and port provisioning.

• 7705 SAR OS Router Configuration Guide

This guide describes logical IP routing interfaces, filtering, and routing policies.

• 7705 SAR OS MPLS Guide

This guide describes how to configure Multiprotocol Label Switching (MPLS),

Resource Reservation Protocol for Traffic Engineering (RSVP-TE), and Label

Distribution Protocol (LDP).

• 7705 SAR OS Services Guide

This guide describes how to configure service parameters such as service access

points (SAPs), service destination points (SDPs), customer information, and user

services.

• 7705 SAR OS Quality of Service Guide

This guide describes how to configure Quality of Service (QoS) policy management.

• 7705 SAR OS Routing Protocols Guide

This guide provides an overview of dynamic routing concepts and describes how to

configure them.

• 7705 SAR OS OAM and Diagnostics Guide

This guide provides information on Operations, Administration and Maintenance

(OAM) tools.

Preface

7705 SAR OS Router Configuration Guide 15

Technical Support

If you purchased a service agreement for your 7705 SAR router and related products from a

distributor or authorized reseller, contact the technical support staff for that distributor or

reseller for assistance. If you purchased an Alcatel-Lucent service agreement, follow this link

to contact an Alcatel-Lucent support representative and to access product manuals and

documentation updates:

http://support.alcatel-lucent.com

About This Guide

16 7705 SAR OS Router Configuration Guide

7705 SAR OS Router Configuration Guide 17

Getting Started

In This Chapter

This chapter provides general process flow information to configure routing entities and

filters.

Alcatel-Lucent 7705 SAR Router Configuration

Process

Table 1 lists the tasks necessary to configure logical IP routing interfaces, filtering, and

routing policies.

This guide is presented in an overall logical configuration flow. Each section describes a

software area and provides CLI syntax and command usage to configure parameters for a

functional area.

Table 1: Configuration Process

Area Task Chapter

Router

configuration

Configure router parameters, including router

interface and addresses, ARP, and ICMP

IP Router Configuration

Protocol

configuration

Configure IP, MAC, and VLAN filters

Configure routing policies

Filter Policies

Route Policies

Reference List of IEEE, IETF, and other proprietary entities Standards and Protocol Support

Alcatel-Lucent 7705 SAR Router Configuration Process

18 7705 SAR OS Router Configuration Guide

7705 SAR OS Router Configuration Guide 19

IP Router Configuration

In This Chapter

This chapter provides information about commands required to configure basic router

parameters.

Topics in this chapter include:

• Configuring IP Router Parameters

• Router Configuration Process Overview

• Configuration Notes

• Configuring an IP Router with CLI

• IP Router Command Reference

Configuring IP Router Parameters

20 7705 SAR OS Router Configuration Guide

Configuring IP Router Parameters

In order to provision services on a 7705 SAR, IP parameters must be configured on the node.

Logical IP routing interfaces must be configured to associate entities, such as a port or the

system, with IP addresses.

A special type of IP interface is the system interface. Configuration of the system interface is

the first step in the provisioning process. When configured, the system IP address can be

advertised via peering or signaling protocols.

A system interface must have a unique IP address with a 32-bit subnet mask (for IPv4) or

128-bit prefix length (for IPv6). The system interface is used as the router identifier by

higher-level protocols such as OSPF, IS-IS, and BGP, unless overwritten by an explicit router

ID.

The following router parameters can be configured:

• Interfaces

• IP Addresses

• Internet Protocol Versions

• Router ID

• Autonomous Systems

• DHCP

• ICMP and ICMPv6

• Static Routes, Dynamic Routes, and ECMP

• IGP-LDP and Static Route-LDP Synchronization

• Bidirectional Forwarding Detection (BFD)

• NAT

Interfaces

The 7705 SAR routers use different types of interfaces for various functions. Interfaces must

be configured with parameters such as the address or port. An interface that is assigned to a

port is a network interface. The system interface is a logical entity and is not assigned to a

physical port.

The 7705 SAR supports IES and VPRN interfaces. IES is used to provide direct forwarding

of IP traffic between CE devices and to facilitate the transport of in-band management traffic

over ATM links. VPRN provides a Layer 3 virtual private network service to end customers.

Alcatel-Lucent Service Aggregation Router 7705 Configuration manual

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