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multicast outgoing interface (OIF), after a VLT peer node failure, using the multicast peer-routing-timeout command in VLT
DOMAIN mode. Using the bootstrap router (BSR) mechanism, you can congure both the VLT nodes in a VLT domain 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
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 the VLT domain
DellEMC(conf)#vlt domain 1
DellEMC(conf-vlt-domain)#peer-link port-channel 1
DellEMC(conf-vlt-domain)#back-up destination 10.16.151.116
DellEMC(conf-vlt-domain)#primary-priority 100
DellEMC(conf-vlt-domain)#system-mac mac-address 00:00:00:11:11:11
DellEMC(conf-vlt-domain)#unit-id 0
DellEMC(conf-vlt-domain)#
DellEMC#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
DellEMC#
Congure the VLT LAG as VLAN-Stack Access or Trunk Port
DellEMC(conf)#interface port-channel 10
DellEMC(conf-if-po-10)#switchport
DellEMC(conf-if-po-10)#vlt-peer-lag port-channel 10
DellEMC(conf-if-po-10)#vlan-stack access
DellEMC(conf-if-po-10)#no shutdown
DellEMC#show running-config interface port-channel 10
!
interface Port-channel 10
1034
Virtual Link Trunking (VLT)