Cisco Catalyst 4500 Series Software Configuration Guide

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 5 Configuring Virtual Switching Systems
Configuring a VSS
Configuring VSL Switch Priority
To configure the switch priority, perform this task:
Note If you make configuration changes to the switch priority, the changes only take effect after you save the
running configuration to the startup configuration file and perform a reload. The show switch virtual
role command shows the operating and configured priority values. You can manually set the VSS
Standby switch to VSS Active using the redundancy force-switchover command.
This example shows how to configure virtual switch priority:
Switch(config)# switch virtual domain 100
Switch(config-vs-domain)# switch 1 priority 200
Switch(config-vs-domain)# exit
This example shows how to display priority information for the VSS:
Switch# show switch virtual role
Switch Switch Status Preempt Priority Role Session ID
Number Oper(Conf) Oper(Conf) Local Remote
------------------------------------------------------------------
LOCAL 1 UP FALSE(N) 100(200) ACTIVE 0 0
REMOTE 2 UP FALSE(N) 100(100) STANDBY 8158 1991
In dual-active recovery mode: No
Command Purpose
Step 1
Switch(config)# switch virtual domain 100
Enters configuration mode for the virtual switch
domain.
Step 2
Switch(config-vs-domain)# switch [1 | 2] priority
[priority_num]
Configures the priority for the switch. The switch
with the higher priority assumes the VSS Active role.
The range is 1 (lowest priority) to 255 (highest
priority); the default is 100.
Note
•
The new priority value only takes effect after you
save the configuration and perform a reload of
the VSS.
• If the higher priority switch is currently in VSS
Standby state, you can make it the VSS Active
switch by initiating a switchover with the
redundancy force-switchover command.
The show switch virtual role command displays
the operating priority and the configured priority
for each switch in the VSS.
• The no form of the command resets the priority
value to the default value of 100. The new value
takes effect after you save the configuration and
perform a reload.
Step 3
Switch# show switch virtual role
Displays the current priority.

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