Cisco Catalyst 4500 Series Administration Guide

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Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)SG
OL-30933-01
Chapter 5 Configuring Virtual Switching Systems
Configuring a VSS
Backing Up the Standalone Configuration
Save the configuration files for both switches operating in standalone mode. You need these files to
revert to standalone mode from virtual switch mode.
On Switch 1, perform this task:
On Switch 2, perform this task:
Configuring SSO and NSF
SSO and NSF are configured as default on VSS.
Assigning Virtual Switch Domain and Switch Numbers
You must configure the same virtual switch domain number on both switches of the VSS. The virtual
switch domain is a number between 1 and 255, and must be unique for each VSS in your network (the
domain number is incorporated into various identifiers to ensure that these identifiers are unique across
the network).
Within the VSS, you must configure one switch to be switch number 1 and the other switch to be switch
number 2.
To configure the virtual switch domain and switch number on both switches, perform this task on
Switch 1:
Command Purpose
Step 1
Switch-1# copy running-config startup-config
(Optional) Saves the running configuration to startup
configuration.
Step 2
Switch-1# copy startup-config
disk0:old-startup-config
Copies the startup configuration to a backup file.
Command Purpose
Step 1
Switch-2# copy running-config startup-config
(Optional) Saves the running configuration to the
startup configuration file.
Step 2
Switch-2# copy startup-config
disk0:old-startup-config
Copies the startup configuration to a backup file.
Command Purpose
Step 1
Switch-1(config)# switch virtual domain 100
Configures the virtual switch domain on Switch A.
Step 2
Switch-1(config-vs-domain)# switch 1
Configures Switch A as virtual switch number 1.
Step 3
Switch-1(config-vs-domain)# exit
Exits config-vs-domain.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E