Reference Guide

unit-id
Explicitly configure the default unit ID of a VLT peer switch.
Z-Series
Syntax
unit-id [0 | 1]
Parameters
0 | 1 Configure the default unit ID of a VLT peer switch. Enter 0 for the first
peer or enter
1 for the second peer.
Defaults Automatically assigned based on the MAC address of each VLT peer. The peer with the lower
MAC address is assigned unit 0; the peer with the higher MAC address is assigned unit 1.
Command Modes VLT DOMAIN
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 9.0.0.0 Introduced on the Z9000.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.8.0 Introduced on the S4810.
Usage
Information
When you create a VLT domain on a switch, FTOS automatically assigns a unique unit ID (0 or
1) to each peer switch. The unit IDs are used for internal system operations. Use the unit-id
command to explicitly configure the unit ID of a VLT peer. Configure a different unit ID (0 or 1)
on each peer switch.
To minimize the time required for the VLT system to determine the unit ID assigned to each
peer switch when one peer reboots, use this command.
vlt domain
Enable VLT on a switch, configure a VLT domain, and enter VLT-domain configuration mode.
Z-Series
Syntax
vlt domain domain-id
Parameters
domain-id Enter the Domain ID number. Configure the same domain ID on the
peer switch. The range of domain IDs is from 1 to 1000.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
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