Deployment Guide

36 Leaf-Spine Deployment and Best Practices Guide | Version 1.0
7.3.6 show vlt brief
This command is used to validate VLT configuration status on leaf switches in this topology. The Inter-chassis
link (ICL) Link Status, Heart Beat Status and VLT Peer Status must all be up. The role for one switch in the
VLT pair is primary and its peer switch (not shown) is assigned the secondary role. Ensure Peer-Routing is
shown as enabled.
S4048-Leaf-1#show vlt brief
VLT Domain Brief
------------------
Domain ID: 127
Role: Primary
Role Priority: 32768
ICL Link Status: Up
HeartBeat Status: Up
VLT Peer Status: Up
Local Unit Id: 0
Version: 6(7)
Local System MAC address: f4:8e:38:20:37:29
Remote System MAC address: f4:8e:38:20:54:29
Remote system version: 6(7)
Delay-Restore timer: 90 seconds
Delay-Restore Abort Threshold: 60 seconds
Peer-Routing : Enabled
Peer-Routing-Timeout timer: 0 seconds
Multicast peer-routing timeout: 150 seconds
7.3.7 show vlt detail
This command is used to validate VLT LAG status on leaf switches in this topology. This command shows the
status and active VLANs of all VLT LAGs (Port channel 1 in this example). The local and peer status must
both be up.
S4048-Leaf-1#show vlt detail
Local LAG Id Peer LAG Id Local Status Peer Status Active VLANs
------------ ----------- ------------ ----------- -------------
1 1 UP UP 50
7.3.8 show vlt mismatch
This command highlights configuration issues between VLT peers. Mismatch examples include incompatible
VLT configuration settings, VLAN differences, different switch operating system versions and spanning-tree
inconsistencies. There should be no output to this command on any switch configured for VLT. If there is,
resolve the mismatch.
S4048-Leaf1#show vlt mismatch
S4048-Leaf1#