Reference Guide

Configure the VLT links between VLT peer 1 and VLT peer 2 to the Top of Rack unit. In the following
example, port Te 0/40 in VLT peer 1 is connected to Te 0/48 of TOR and port Te 0/18 in VLT peer 2 is
connected to Te 0/50 of TOR.
1. Configure the static LAG/LACP between the ports connected from VLT peer 1 and VLT peer 2 to the
Top of Rack unit.
2. Configure the VLT peer link port channel id in VLT peer 1 and VLT peer 2.
3. In the Top of Rack unit, configure LACP in the physical ports (shown for VLT peer 1 only. Repeat
steps for VLT peer 2. The bold vlt-peer-lag port-channel 2 indicates that port-channel 2 is
the port-channel id configured in VLT peer 2).
s4810-2#show running-config interface tengigabitethernet 0/40
!
interface TenGigabitEthernet 0/40
no ip address
!
port-channel-protocol LACP
port-channel 2 mode active
no shutdown
s4810-2#
configuring VLT peer lag in VLT
s4810-2#show running-config interface port-channel 2
!
interface Port-channel 2
no ip address
switchport
vlt-peer-lag port-channel 2
no shutdown
s4810-2#
s4810-2#show interfaces port-channel 2 brief
Codes: L - LACP Port-channel
LAG Mode Status Uptime Ports
L 2 L2L3 up 03:33:14 Te 0/40 (Up)
s4810-2#
In the ToR unit, configure LACP on the physical ports.
s60-1#show running-config interface tengigabitethernet 0/48
!
interface TenGigabitEthernet 0/48
no ip address
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
s60-1#show running-config interface tengigabitethernet 0/50
!
interface TenGigabitEthernet 0/50
no ip address
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
s60-1#
s60-1#show running-config interface port-channel 100
!
interface Port-channel 100
Virtual Link Trunking (VLT)
997