Reference Guide

Congure unicast routing — peer 2
OS10(config)# vlt-domain 1
OS10(conf-vlt-1)# peer-routing
OS10(conf-vlt-1)# do commit
View unicast routing — peer 2
OS10(conf-vlt-1)# do show running-configuration vlt
!
vlt-domain 1
peer-routing
discovery-interface ethernet1/1/1 ethernet1/1/2
VRRP Optimized Forwarding
To enable optimized L3 forwarding over VLT, use VRRP active-active mode. By default, VRRP active-active mode is enabled in the VLAN
interfaces. In the active-active mode, each peer locally forwards L3 trac, resulting in reduced trac ow over the VLTi. Congure the
same L3 routing (static and dynamic) on each peer so that the L3 reachability and routing tables are the same on both peers.
1 Enable VRRP active-active mode in VLAN-INTERFACE mode.
vrrp mode active-active
2 Save the conguration.
do commit
3 Congure VRRP on the L3 VLAN that spans both peers.
4 Repeat the steps on the VLT peer.
Congure VRRP active-active mode — peer 1
OS10(conf-if-vl-10)# vrrp mode active-active
OS10(conf-if-vl-10)# do commit
Congure VRRP active-active mode — peer 2
OS10(conf-if-vl-10)# vrrp mode active-active
OS10(conf-if-vl-10)# do commit
View VRRP conguration
OS10# show running-configuration interface vlan 10
!
interface vlan10
no shutdown
no vrrp mode active-active
OS10#
View VLT information
To monitor the operation or verify the conguration of a VLT domain, use a VLT show command on primary and secondary peers.
• View detailed information about the VLT domain conguration in EXEC mode, including VLTi status, local and peer MAC addresses,
peer-routing status, and VLT peer parameters.
show vlt domain-id
• View the role of the local and remote VLT peer in EXEC mode.
show vlt domain-id role
• View any mismatches in the VLT conguration in EXEC mode.
show vlt domain-id mismatch
• View detailed information about VLT ports in EXEC mode.
show vlt domain-id vlt-port-detail
Virtual link trunking
501