3com Switch 7700 Configuration manual

Category
Network switches
Type
Configuration manual
http://www.3com.com/
Switch 7700
Configuration Guide
Published December 2003
Part No.10014298
3Com Corporation
350 Campus Drive
Marlborough, MA
01752-3064
Copyright © 2003, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced
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If you are a United States government agency, then this documentation and the software described herein
are provided to you subject to the following:
All technical data and computer software are commercial in nature and developed solely at private expense.
Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995)
or
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provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited
rights only as provided in DFAR 252.227-7015 (Nov
1995) or FAR 52.227-14 (June 1987), whichever is
applicable. You agree not to remove or deface any portion of any legend provided on any licensed program
or documentation contained in, or delivered to you in conjunction with, this User Guide.
Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may
not be registered in other countries.
3Com, the 3Com logo, are registered trademarks of 3Com Corporation.
Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and
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associated.
CONTENTS
ABOUT THIS GUIDE
Conventions 1
SYSTEM ACCESS
Product Overview 3
Function Features 3
Configuring the Switch 7700 4
Setting Terminal Parameters 5
Configuring Through Telnet 8
Configuring Through a Dial-up the Modem 11
Configuring the User Interface 12
Command Line Interface 20
Command Line View 20
Feature and Functions of the Command Line 24
PORT CONFIGURATION
Ethernet Port Overview 27
Ethernet Port Configuration 27
Set the VLAN VPN Feature 33
Display and Debug Ethernet Port 33
Ethernet Port Troubleshooting 35
Link Aggregation Configuration 35
Link Aggregation Configuration 35
Display and Debug Link Aggregation 35
Ethernet Link Aggregation Troubleshooting 36
VLAN CONFIGURATION
VLAN Overview 37
Configuring VLAN 37
Display and Debug VLAN 40
Configuring GARP/GVRP 41
Configuring GVRP 43
NETWORK PROTOCOL OPERATION
Configure IP Address 47
Subnet and Mask 47
Configure IP Address 48
Displaying and Debugging an IP Address 49
Troubleshooting an IP Address Configuration 49
ARP Configuration 50
Configure Static ARP 50
DHCP Relay 51
Configuring DHCP Relay 52
Displaying and Debugging DHCP Relay 53
Troubleshooting a DHCP Relay Configuration 55
IP Performance 56
Displaying and Debugging IP Performance 56
Troubleshooting IP Performance 57
ROUTING PROTOCOL OPERATION
IP Routing Protocol Overview 59
Route Selection through the Routing Table 60
Routing Management Policy 61
Static Routes 62
Configuring Static Routes 63
Display and Debug Static Route 65
Static Route Fault Diagnosis and Troubleshooting 66
RIP 67
Configuring RIP 68
Display and Debug RIP 75
RIP Fault Diagnosis and Troubleshooting 76
OSPF 76
Calculating OSPF Routes 76
OSPF Configuration 78
Display and Debug OSPF 94
OSPF Fault Diagnosis and Troubleshooting 98
IS-IS 99
Two-level Structure of IS-IS Routing Protocol 100
NSAP Structure of IS-IS Routing Protocol 101
IS-IS Routing Protocol Packets 102
Configuring Integrated IS-IS 102
Displaying and Debugging IS-IS 115
Typical Integrated IS-IS Configuration Example 115
BGP 117
Configuring BGP 118
Displaying and Debugging BGP 133
BGP Configuration Example 134
BGP Troubleshooting 141
IP Routing Policy 142
Routing Information Filters 142
Configuring an IP Routing Policy 143
Display and Debug the Routing Policy 148
Routing Policy Fault Diagnosis and Troubleshooting 149
Route Capacity 150
Route Capacity Limitation 150
Route Capacity Configuration 150
Displaying and Debugging Route Capacity 153
MULTICAST PROTOCOL
IP Multicast Overview 155
Multicast Addresses 156
IP Multicast Protocols 158
IP Multicast Packet Forwarding 159
Application of Multicast 160
GMRP 160
ConfigurING GMRP 160
Displaying and Debugging GMRP 161
IGMP Snooping 162
Configure IGMP Snooping 165
Display and debug IGMP Snooping 166
IGMP Snooping Configuration Example 166
TroubleshootinIGMP Snooping 167
Common Multicast Configuration 167
Common Multicast Configuration 168
Display and Debug Common Multicast Configuration 168
IGMP Configuration 169
IGMP Configuration 170
Display and Debug IGMP 172
PIM-DM Configuration 173
PIM-DM Configuration 174
Display and Debug PIM-DM 175
PIM-DM Configuration Example 176
PIM-SM Configuration 177
PIM-SM Operating Principle 177
Preparations before Configuring PIM-SM 178
PIM-SM Configuration 179
Display and Debug PIM-SM 182
QOS/ACL OPERATION
ACL Overview 187
ACL Supported by Ethernet Switch 188
Configuring ACL 189
Configuring the Time Range 189
Selecting the ACL Mode 189
Defining ACL 190
Activating ACL 192
Displaying and Debugging ACL 193
QoS Overview 194
Traffic 194
Configuring QoS 197
Displaying and Debugging QoS 200
User LogonACL Control Configuration 201
Configure ACL Control over the TELNET User 201
Configure ACL Control over SNMP Users 203
STP OPERATION
STP Overview 205
Designated Switch and Designated Port 205
Calculating the STP Algorithm 206
Generating the Configuration BPDU 206
Selecting the Optimum Configuration BPDU 207
Designating the Root Port 207
Configuring the BPDU Forwarding Mechanism 209
RSTP 209
Configuring RSTP 210
Displaying and Debugging RSTP 219
MSTP 222
MSTP Concepts 222
MSTP Principles 224
Configuring MSTP 224
Configuring the MST Region for a Switch 225
Specifying the Switch as Primary or Secondary Root Switch 226
Configuring the MSTP Running Mode 227
Configuring the Bridge Priority for a Switch 228
Configuring the Max Hops in an MST Region 228
Configuring the Switching Network Diameter 229
Configuring the Time Parameters of a Switch 229
Configuring the Max Transmission Speed on a Port 231
Configuring a Port as an Edge Port 232
Configuring the Path Cost of a Port 232
Configuring the Priority of a Port 233
Configuring the Port Connection with the Point-to-Point Link 234
Configuring the mCheck Variable of a Port 235
Configuring the Switch Security Function 235
Enabling MSTP on the Device 237
Enabling or Disabling MSTP on a Port 237
Displaying and Debugging MSTP 238
AAA AND RADIUS OPERATION
IEEE 802.1x 239
802.1x System Architecture 239
Configuring 802.1x 241
Displaying and Debugging 802.1x 245
Configuring the AAA and RADIUS Protocols 248
Configuring AAA 250
Configuring the RADIUS Protocol 253
Displaying and Debugging the AAA and RADIUS Protocols 260
AAA and RADIUS Protocol Fault Diagnosis and Troubleshooting 261
RELIABILITY
VRRP Overview 263
Configuring VRRP 264
Enabling and Disabling Pinging the Virtual IP Address 264
Setting the Correspondence between Virtual IP and MAC Addresses 265
Adding and Deleting a Virtual IP Address 265
Configuring the Priority of Switches 266
Configuring Preemption and Delay for a Switch 266
Configuring Authentication Type and Authentication Key 267
Configuring the VRRP Timer 267
Configuring a Switch to Track an Interface 268
Displaying and Debugging VRRP 268
Troubleshooting VRRP 271
SYSTEM MANAGEMENT
File System Management 1
Directory Operation 1
File Operation 2
Storage Device Operation 2
Setting the Prompt Mode of the File System 2
Configuring File Management 3
FTP 4
TFTP 6
MAC Address Table Management 7
MAC Address Table Configuration 8
Display and Debug MAC Address Table 11
Device Management 12
Reboot Ethernet Switch 12
Designate the APP Adopted when Booting the Ethernet Switch Next Time 13
Display and Debug Device Management 14
System Maintenance and Debugging 14
Configuring System Basics 14
Display the State and Information of the System 15
System Debugging 16
Testing Tools for Network Connection 18
Logging Function 18
Displaying and Debugging the Syslog Function 23
SNMP 23
SNMP Versions and Supported MIB 24
Configure SNMP 25
Displaying and Debugging SNMP 30
RMON 31
Configure RMON 32
Displaying and Debugging RMON 34
NTP 35
Configuring NTP 36
Displaying and Debugging NTP 42
NTP Configuration Examples 43
ABOUT THIS GUIDE
This guide describes the 3Com
®
Switch 7700 and how to configure it in version
2.0 of the software.
Conventions Tabl e 1 and Table 2 list conventions that are used throughout this guide.
Table 1 Notice Icons
Table 2 Text Conventions
Icon Notice Type Description
Information note Information that describes important features or
instructions.
Caution Information that alerts you to potential loss of data
or potential damage to an application, system, or
device.
Warning Information that alerts you to potential personal
injury.
Convention Description
Screen displays This typeface represents information as it appears on the screen.
Keyboard key names If you must press two or more keys simultaneously, the key names are
linked with a plus sign (+), for example:
Press Ctrl+Alt+Del
The words “enter”
and type”
When you see the word “enter” in this guide, you must type
something, and then press Return or Enter. Do not press Return or
Enter when an instruction simply says “type.”
Words in italics Italics are used to:
Emphasize a point.
Denote a new term at the place where it is defined in the text.
Identify command variables.
Identify menu names, menu commands, and software button names.
Examples:
From the Help menu, select Contents.
Click OK.
Words in bold Boldface type is used to highlight command names. For example, “Use
the display user-interface command to...”
2 ABOUT THIS GUIDE
1
SYSTEM ACCESS
Product Overview
Configuring the Switch 7700
Setting Terminal Parameters
Command Line Interface
Product Overview The 3Com Switch 7700 is a large capacity, modularized wire speed
Layer
2/Layer 3 Ethernet switch. It is designed for IP metropolitan area networks
(MAN), large-sized enterprise network and campus network users.
The Switch 7700 has an integrated chassis structure. The chassis contains a card
area, fan area, power supply area, and a power distribution area. In the card area,
there are seven slots. Slot 0 is prepared specially for the switch Fabric module. The
other six slots are for interface modules. You can install different interface modules
for different networks and the slots support mixed a mixed set of modules.
The Switch 7700 supports the following services:
Internet broadband access
MAN, enterprise/campus networking
Multicast service and multicast routing functions and support audio and video
multicast service.
Function Features Tabl e 1 lists and describes the function features that the Switch 7700 supports.
Table 1 Function Features
Features Support
VLAN VLANs compliant with IEEE 802.1Q standard
Port-based VLAN
GARP VLAN Registration Protocol (GVRP)
STP protocol STP/RSTP, compliant with IEEE 802.1D/802.1w Standard
Flow control IEEE 802.3x flow control (full-duplex)
Back-pressure based flow control (half-duplex)
Broadcast Suppression Broadcast Suppression
Multicast GARP Multicast Registration Protocol (GMRP)
Internet Group Management Protocol (IGMP)
Protocol-Independent Multicast-Dense Mode (PIM-DM)
Protocol-Independent Multicast-Sparse Mode (PIM-SM)
4 CHAPTER 1: SYSTEM ACCESS
Configuring the
Switch 7700
On the Switch 7700, you can set up the configuration environment through the
console port. To set up the the local configuration environment:
1 Plug the DB-9 or DB-25 female plug of the console cable into the serial port of the
PC or the terminal where the switch is to be configured.
2 Connect the RJ-45 connector of the console cable to the console port of the
switch, as shown in
Figure 1.
IP routing Static route
Routing Information Protocol (RIP) V1/v2
Open Shortest Path First (OSPF)
DHCP Relay Dynamic Host Configuration Protocol (DHCP) Relay
Link aggregation Link aggregation
Security features Multi-level user management and password protect
802.1X authentication
Packet filtering
Reliability Virtual Redundancy Routing Protocol (VRRP)
Quality of Service (QoS) Traffic classification
Bandwidth control
Priority
Queues of different priority on the port
Queue scheduling: supports Strict Priority Queueing (SP)
Management Command line interface configuration
Configuration by the console port
Remote configuration by Telnet
Configuration through dialing the modem
SNMP
System log
Level alarms
Loading and update Load and upgrade software using the XModem protocol
Load and upgrade software using the File Transfer Protocol
(FTP) and Trivial File Transfer Protocol (TFTP)
Maintenance Output of the debugging information
PING and Tracert
Remote maintenance using Telnet and a modem
Table 1 Function Features
Features Support
Setting Terminal Parameters 5
Figure 1 Setting up the Local Configuration Environment Through the Console Port
Setting Terminal
Parameters
To set terminal parameters:
1 Start the PC and select Start > Programs > Accessories > Communications >
HyperTerminal.
2 The HyperTerminal window displays the Connection Description dialog box, as
shown in
Figure 2.
Figure 2 Set up the New Connection
3 Enter the name of the new connection in the Name field and click OK. The dialog
box, shown in
Figure 3 displays.
4 Select the serial port to be used from the Connect using dropdown menu.
RS-232 Serial port
Console cable
Console port
6 CHAPTER 1: SYSTEM ACCESS
Figure 3 Properties Dialog Box
5 Click OK. The Port Settings tab, shown in Figure 4, displays and you can set serial
port parameters. Set the following parameters:
Baud rate = 9600
Databit = 8
Parity check = none
Stopbit = 1
Flow control = none
Setting Terminal Parameters 7
Figure 4 Set Communication Parameters
6 Click OK. The HyperTerminal dialogue box displays, as shown in Figure 5.
7 Select Properties.
Figure 5 HyperTerminal Window
8 In the Properties dialog box, select the Settings tab, as shown in Figure 6.
9 Select VT100 in the Emulation dropdown menu.
10 Click OK.
8 CHAPTER 1: SYSTEM ACCESS
Figure 6 Settings Tab
Configuring Through
Teln et
After you have correctly configured the IP address of a VLAN interface for an
Ethernet switch through the console port (using the ip address command in
VLAN interface view), and added the port (that connects to a terminal) to this
VLAN (using the port command in VLAN view), you can telnet this Switch 7700
and configure it.
Connecting the PC to the Switch 7700
To connect the PC and Switch 7700 through Telnet:
1 Authenticate the Telnet user through the console port before the user logs in by
Tel net.
Note: By default, the password is required for authenticating the Telnet user to
log in the Ethernet switch. If a user logs in by Telnet without a password, the user
sees the message:
Password required, but none set.
2 Enter system view, return to user view by pressing Ctrl+Z.
<SW7700> system-view
[SW7700] user-interface vty 0 4
[SW7700-ui-vty0] set authentication password simple/cipher xxxx
(xxxx is the preset login password of Telnet user)
3 To set up the configuration environment, connect the Ethernet port of the PC to
that of the Ethernet switch through the LAN. See
Figure 7.
Setting Terminal Parameters 9
Figure 7 Setting up the Configuration Environment Through Telnet
4 Run Telnet on the PC by selecting Start > Run from the Windows desktop and
entering Telnet in the Open field, as shown in
Figure 8. Click OK.
Figure 8 Run Telnet
5 On the Connect dialog box, enter the IP address of the VLAN connected to the PC
port and set the terminal type to VT100, as shown in
Figure 9.
Figure 9 Connect Ethernet Switch by Telnet
The terminal displays User Access Verification and prompts you for the logon
password.
6 Enter the password,. The terminal displays the command line prompt (<SW7700>).
If the message, Too many users! appears, try to reconnect later. At most, 5
Telnet users are allowed to log on to the Switch 7700 Switch simultaneously.
7 Use the appropriate commands to configure the Ethernet switch or to monitor the
running state. Enter
? to get the immediate help. For details of specific commands,
refer to the chapters in this guide.
Workstation
WorkstationServer
Ethernet port
PC (for configuring
the switch through Telnet)
10 CHAPTER 1: SYSTEM ACCESS
Note: When configuring the Ethernet switch by Telnet, do not modify the IP
address of it unless necessary, for the modification might terminate the Telnet
connection. By default, after logging on, a Telnet user can access the commands
at Level 0.
Connecting Two Switch 7700 Systems
After you have correctly configured IP address of a VLAN interface for an Ethernet
Switch through the console port (using the ip address command in VLAN
interface view), and have added the port (that connects to a terminal) to this VLAN
(using the port command in VLAN view), you can telnet the Switch 7700 to
another Switch 7700 to carry out the configuration, as shown in
Figure 10. The
local end is the Telnet client and the peer is the Telnet server. If the two switches
are located on the same LAN, their IP addressed should be configured on the same
segment or have a route between them.
After you telnet to an Ethernet switch, you can run the telnet command to log in
and configure another Ethernet switch.
Figure 10 Provide Telnet Client Service
1 Authenticate the Telnet user through the console port on the Telnet Server
(Ethernet switch) before login.
Note: By default, the password is required for authenticating the Telnet user to
log in the Ethernet switch. If a user logs into Telnet without password, the system
displays the following message:
Password required, but none set.
2 Enter system view, return to user view by pressing Ctrl+Z.
<SW7700> system-view
[SW7700] user-interface vty 0
[SW7700-ui-vty0] set authentication password simple/cipher xxxx
(xxxx is the preset login password of Telnet user)
3 Log in to the Telnet client (Switch 7700). For the login process, see “Connecting
the PC to the Switch 7700”.
4 Perform the following operations on the Telnet client:
<SW7700> telnet xxxx
(xxxx can be the hostname or IP address of the Telnet Server. If it is the hostname,
the switch shall have the static resolution function.)
5 Enter the preset login password. The Switch 7700 prompt (<SW7700>) displays. If
the message,
Too many users! displays, try to connect later.
6 Use the appropriate commands to configure the Switch 7700 or view its running
state. Enter
? to get the immediate help. For details on a specific command, refer
to the appropriate chapter in this guide.
PC
Telnet client
Telnet server
Setting Terminal Parameters 11
Configuring Through a
Dial-up the Modem
To configure your router through a dial-up modem:
1 Authenticate the modem user through the console port of the Switch 7700 before
the user logs in to the switch through a dial-up modem.
Note: By default, the password is required for authenticating the modem user to
log in to the Switch 7700. If a user logs in through the modem without a
password, the user sees the message,
Password required, but none set.
a Enter system view, return user view with Ctrl+Z.
<SW7700> system-view
[SW7700] user-interface aux 0
[SW7700-ui-aux0] set authentication password simple/cipher xxxx
(xxxx is the preset login password of the Modem user.)
b Using the modem command, you can configure the console port as in modem
mode.
[SW7700-ui-aux0] modem
2 To set up the remote configuration environment, connect the modems to a PC (or
a terminal) serial port and to the Switch 7700 console port, as shown in
Set Up
Remote Configuration Environment.
Figure 11 Set Up Remote Configuration Environment
3 Dial for a connection to the switch, using the terminal emulator and modem on
the remote end. Dial the telephone number of the modem connected to the
Ethernet switch. See
Figure 12 and Figure 13.
Console port
Remote telephone:
555-5555
Modem
Modem
PST
Telephone line
Modem serial port line
12 CHAPTER 1: SYSTEM ACCESS
Figure 12 Set the Dialed Number
Figure 13 Dial the Remote PC
4 Enter the preset login password on the remote terminal emulator and wait for the
<SW7700> prompt.
5 Use the appropriate commands to configure the Switch 7700 or view its running
state. Enter
? to get the immediate help. For details on a specific command, refer
to the appropriate chapter in this guide.
Note: By default, after login, a modem user can access the commands at Level 0.
Configuring the User
Interface
User interface configuration is another way to configure and manage port data.
The Switch 7700 supports the following configuration methods:
Local configuration through the console port
Remote configuration through Telnet on the Ethernet port
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3com Switch 7700 Configuration manual

Category
Network switches
Type
Configuration manual

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