Deployment Guide

39 Dell EMC Networking Virtualization Overlay with BGP EVPN
8.2 VLT validation commands
8.2.1 show vlt domain_id
VLT configuration is verified by running the show vlt domain_id command on each of the leaf switches.
The Role of one switch in the VLT pair is primary, and its peer switch (not shown) is assigned the
secondary role. The VLTi link status and VLT Peer Status must both be up.
Leaf1a# show vlt 127
Domain ID : 127
Unit ID : 2
Role : primary
Version : 2.3
Local System MAC address : 3c:2c:30:10:36:00
Role priority : 32768
VLT MAC address : 00:00:01:02:03:01
IP address : fda5:74c8:b79e:1::2
Delay-Restore timer : 120 seconds
Peer-Routing : Disabled
Peer-Routing-Timeout timer : 0 seconds
VLTi Link Status
port-channel1000 : up
VLT Peer Unit ID System MAC Address Status IP Address Version
--------------------------------------------------------------------------------
1 3c:2c:30:10:41:00 up fda5:74c8:b79e:1::1 2.3
8.2.2 show vlt domain_id backup-link
This command is used to verify VLT peers are communicating on the backup link over the OOB management
network. The Destination is the management IP address of the peer. The Peer HeartBeat status
must be Up.
Leaf1a# show vlt 127 backup-link
VLT Backup Link
------------------------
Destination : 100.67.166.220
Peer Heartbeat status : Up
Heartbeat interval : 30
Heartbeat timeout : 90
Destination VRF : default
8.2.3 show vlt domain_id mismatch
This command highlights configuration issues between VLT peers. Mismatch examples include incompatible
VLT configuration settings and VLAN differences. Any mismatches reported should be resolved before
proceeding.
S5248F-Leaf1A# show vlt 127 mismatch
VLT-MAC mismatch:
No mismatch
Peer-routing mismatch:
No mismatch
VLAN mismatch: