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
To convert Switch 1 to virtual switch mode, perform this task:
To convert Switch 2 to virtual switch mode, perform this task on Switch 2:
Note After you confirm the command (by entering yes at the prompt), the running configuration is
automatically saved as the startup configuration and the switch reboots. After the reboot, the switch is
in virtual switch mode, so you must specify interfaces with three identifiers (switch/module/port).
When switches are being converted to VSS, you should not set them to ignore startup-config. If done,
the switch can be enabled to parse the startup-config at the rommon prompt. Ignoring startup-config in
VSS mode, causes a switch to boot in a semi-VSS mode, which can only be corrected by a reboot and
by enabling the parsing of startup-config.
(Optional) Configuring VSS Standby Switch Modules
Note You cannot configure or provision modules on VSS.
When switches form initial VSS relationships, they send module information to each other and this
information is pushed to the configuration and used subsequently for provisioning, provided the switch
is booting and the peer is down or not present.
The following example shows the module provisioning information:
module provision switch 1
slot 1 slot-type 148 port-type 60 number 4 virtual-slot 17
slot 2 slot-type 137 port-type 31 number 16 virtual-slot 18
slot 3 slot-type 227 port-type 60 number 8 virtual-slot 19
slot 4 slot-type 225 port-type 61 number 48 virtual-slot 20
slot 5 slot-type 82 port-type 31 number 2 virtual-slot 21
module provision switch 2
slot 1 slot-type 148 port-type 60 number 4 virtual-slot 33
slot 2 slot-type 227 port-type 60 number 8 virtual-slot 34
slot 3 slot-type 137 port-type 31 number 16 virtual-slot 35
Command Purpose
Switch-1# switch convert mode virtual
Converts Switch 1 to virtual switch mode.
After you enter the command, you are prompted to
confirm the action. Enter yes.
The system creates a converted configuration file, and
saves the file to the bootflash.
Command Purpose
Switch-2# switch convert mode virtual
Converts Switch 2 to virtual switch mode.
After you enter the command, you are prompted to
confirm the action. Enter yes.
The system creates a converted configuration file, and
saves the file to the bootflash.

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