Reference Guide

1010 | Virtual Link Trunking (VLT)
www.dell.com | support.dell.com
In the following sample VLT configuration steps, VLT peer 1 is S4810-2, VLT peer 2 is S4810-4, and the
ToR is S60-1:
Configure the VLT domain with the same ID in VLT peer 1 and VLT peer 2
s4810-2(conf)#vlt domain 5
s4810-2(conf-vlt-domain)#
s4810-4(conf)#vlt domain 5
s4810-4(conf-vlt-domain)#
Configure the VLTi between VLT peer 1 and VLT peer 2:
1. LACP/Static LAG can be configured between the peer units (not shown)
2. Configure the peer-link port-channel in the VLT domains of each peer unit.
s4810-2(conf)#interface port-channel 1
s4810-2(conf-if-po-1)#channel-member TenGigabitEthernet 0/4-7
s4810-4(conf)#interface port-channel 1
s4810-4(conf-if-po-1)#channel-member TenGigabitEthernet 0/4-7
Configure the backup link between the VLT peer units.
1. Configure the peer 2 management ip/ interface ip for which connectivity is present in VLT peer 1.
2. Configure the peer 1 management ip/ interface ip for which connectivity is present in VLT peer 2.
s4810-2#show running-config vlt
!
vlt domain 5
peer-link port-channel 1
back-up destination 10.11.206.58
s4810-2#
1. Configure the static LAG/LACP
between ports connected from
VLT peer 1 and VLT peer 2 to the
top of rack unit.
show running-config entity
EXEC Privilege
2. Configure the VLT peer link port
channel id in VLT peer 1 and VLT
peer 2.
show interfaces interface EXEC
EXEC Privilege
3. In the top of rack unit, configure
LACP in the physical ports
show running-config entity
EXEC Privilege
Verify VLT is running.
show vlt brief
EXEC
show vlt detail
EXEC
Verify the VLT LAG is running in
both VLT peer units.
show interfaces interface EXEC
EXEC Privilege
Note: If a third-party ToR unit is used, Dell Force10 recommends using static LAGs with VLT peers to
avoid potential problems if the VLT peers are rebooted.
Task Command Syntax Command Mode