Setup Guide

outgoing interface (OIF) maps after a peer node failure, use the timeout value that you congured through the multicast peer-
routing timeout value command. You can congure an optimal time for a VLT node to retain synced multicast routes or synced
multicast outgoing interface (OIF), after a VLT peer node failure, through the
multicast peer-routing-timeout command in VLT
DOMAIN mode. Using the bootstrap router (BSR) mechanism, both the VLT nodes in a VLT domain can be congured as the candidate RP
for the same group range. When an RP fails, the VLT peer automatically takes over the role of the RP. This phenomenon enables resiliency
to be achieved by the PIM BSR protocol.
Conguring VLAN-Stack over VLT
To congure VLAN-stack over VLT, follow these steps.
1 Congure the VLT LAG as VLAN-stack access or trunk mode on both the peers.
INTERFACE PORT-CHANNEL mode
vlan-stack {access | trunk}
2 Congure VLAN as VLAN-stack compatible on both the peers.
INTERFACE VLAN mode
vlan-stack compatible
3 Add the VLT LAG as a member to the VLAN-stack on both the peers.
INTERFACE VLAN mode
member port-channel port—channel ID
4 Verify the VLAN-stack congurations.
EXEC Privilege
show running-config
Sample conguration of VLAN-stack over VLT (Peer 1)Congure VLT domain
Dell(conf)#vlt domain 1
Dell(conf-vlt-domain)#peer-link port-channel 1
Dell(conf-vlt-domain)#back-up destination 10.16.151.116
Dell(conf-vlt-domain)#primary-priority 100
Dell(conf-vlt-domain)#system-mac mac-address 00:00:00:11:11:11
Dell(conf-vlt-domain)#unit-id 0
Dell(conf-vlt-domain)#
Dell#show running-config vlt
!
vlt domain 1
peer-link port-channel 1
back-up destination 10.16.151.116
primary-priority 100
system-mac mac-address 00:00:00:11:11:11
unit-id 0
Dell#
Congure VLT LAG as VLAN-Stack Access or Trunk Port
Dell(conf)#interface port-channel 10
Dell(conf-if-po-10)#switchport
Dell(conf-if-po-10)#vlt-peer-lag port-channel 10
Dell(conf-if-po-10)#vlan-stack access
Dell(conf-if-po-10)#no shutdown
Dell#show running-config interface port-channel 10
!
interface Port-channel 10
Virtual Link Trunking (VLT)
1139