Administrator Guide

Configure the VLAN as VLAN-Stack VLAN and add the VLT LAG as members to the VLAN
Dell(conf)#interface vlan 50
Dell(conf-if-vl-50)#vlan-stack compatible
Dell(conf-if-vl-50-stack)#member port-channel 10
Dell(conf-if-vl-50-stack)#member port-channel 20
Dell(conf-if-vl-50-stack)#
Dell#show running-config interface vlan 50
!
interface Vlan 50
vlan-stack compatible
member Port-channel 10,20
shutdown
Dell#
Verify that the Port Channels used in the VLT Domain are Assigned to the VLAN-Stack VLAN
Configure BFD in VLT Domain
Dell EMC Networking OS supports Bidirectional Forwarding Detection (BFD) to detect communication failures on an interface
that is a part of a VLT link aggregation group (LAG).
In VLT domain, BFD provides high availability path when there are communication failures in any one of the VLT LAG links. The
VLT nodes and top of rack (ToR) use the VLT LAG links to carry the BFD packets. When any one of the VLT LAG links
connected to the ToR is down, the BFD packets reach the VLT primary or secondary using the VLTi (ICL) link.
Sample BFD configuration in VLT domain
The following shows the sample configuration of BFD implementation in VLT environment:
ToR
1. Enable BFD globally.
TOR(conf)# bfd enable
2. Configure a VLT peer LAG.
1062
Virtual Link Trunking (VLT)