Reference Guide

Virtual Link Trunking (VLT) | 1479
Defaults
Not configured.
Command Modes
VLT DOMAIN
Command
History
Usage
Information
Use peer-down-vlan to configure the VLAN from where the VLT peer forwards packets
received over the VLTi from an adjacent VLT peer that is down. When a VLT peer with Bare
Metal Provisioning (BMP) is booting up, it sends untagged DHCP discover packets to its peer
over the VLTi. Use this configuration to ensure that the DHCP discover packets are
forwarded to the VLAN on the DHCP server.
primary-priority
Assign the priority for master election among VLT peers.
Syntax
[no] primary-priority
Parameters
Default
32768
Command Modes
VLT DOMAIN
Usage
Information
After you configure the VLT domain on each peer switch on both sides of the interconnect
trunk, by default, the FTOS software elects a primary and secondary VLT peer device. Use
the priority command to reconfigure the primary role of VLT peer switches.
Command
History
show vlt
z
Displays status information about VLT domains currently configured on the switch.
Syntax
show vlt [brief | detail]
Defaults
Not configured.
Command Modes
EXEC
Example
(brief)
FTOS(conf)#show vlt brief
VLT Domain Brief
Version 8.3.12.0 Added support for peer-down-vlan parameter.
Version 8.3.8.0 Introduced on S4810
value
To configure the primary role on a VLT peer, enter a lower value than the priority
value of the remote peer.
Range: 1 to 65535.
Version 8.3.8.0 Introduced on S4810