Users Guide

To reconfigure the default MAC address for the domain, use the system-mac command. The MAC
address must be in the nn:nn:nn:nn:nn:nn format. Also reconfigure the same MAC address on the VLT
peer switch.
unit-id
Configure the default unit ID of a VLT peer switch.
Syntax
unit-id [0 | 1]
Parameters
0 | 1 Configure the default unit ID of a VLT peer switch. Enter 0 for the first peer. 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, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.5(0.1) Introduced on the Z9500.
9.2(0.0) Introduced on the M I/O Aggregator. This command is supported in
Programmable-Mux (PMUX) mode only.
9.0.2.0 Introduced on the S6000.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.8.0 Introduced on the S4810.
Usage Information
When you create a VLT domain on a switch, the Dell Networking OS automatically assigns a unique unit
ID (0 or 1) to each peer switch. The unit IDs are used for internal system operations. To explicitly
configure the unit ID of a VLT peer, use the unit-id command. Configure a different unit ID (0 or 1) on
each peer switch.
This command minimizes the time required for the VLT system to determine the unit ID assigned to each
peer switch when one peer reboots.
vlt domain
Enable VLT on a switch, configure a VLT domain, and enter VLT-Domain Configuration mode.
Syntax
vlt domain domain-id
Virtual Link Trunking (VLT) 1695