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CONFIGURATION mode
interface port-channel port-channel id
NOTE: To benefit from the protocol negotiations, Dell Networking recommends configuring VLTs used as facing hosts/
switches with LACP. Both peers must use the same port channel ID.
3. Configure the peer-link port-channel in the VLT domains of each peer unit.
INTERFACE PORTCHANNEL mode
channel-member
4. Configure the backup link between the VLT peer units. Configure the peer 2 management ip/ interface ip for which
connectivity is present in VLT peer 1.
EXEC Privilege mode
show running-config vlt
5. Configure the peer 1 management ip/ interface ip for which connectivity is present in VLT peer 1.
EXEC mode or EXEC Privilege mode
show interfaces interface
6. Configure the VLT links between VLT peer 1 and VLT peer 2 to the top of rack unit. Configure the static LAG/LACP
between ports connected from VLT peer 1 and VLT peer 2 to the top of rack unit.
EXEC Privilege mode
show running-config entity
7. Configure the VLT peer link port channel id in VLT peer 1 and VLT peer 2.
EXEC mode or EXEC Privilege mode
show interfaces interface
8. In the top of rack unit, configure LACP in the physical ports.
EXEC Privilege mode
show running-config entity
9. Verify VLT is running.
EXEC mode
show vlt brief
show vlt detail
10. Verify the VLT LAG is running in both VLT peer units.
EXEC mode or EXEC Privilege
show interfaces interface
In the following sample VLT configuration steps, VLT peer 1 is FN IOM-2, VLT peer 2 is FN IOM-4, and the ToR is FN IOM-1.
NOTE:
If you use a third-party ToR unit, Dell Networking recommends using static LAGs with VLT peers to avoid potential
problems if the VLT peers are rebooted.
Configure the VLT domain with the same ID in VLT peer 1 and VLT peer 2
fniom-2(conf)#vlt domain 5
fniom-2(conf-vlt-domain)#
fniom-4(conf)#vlt domain 5
fniom-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.
fniom-2(conf)#interface port-channel 1
fniom-2(conf-if-po-1)#channel-member TenGigabitEthernet 0/4-7
fniom-2(conf)#no shutdown
fniom-4(conf)#interface port-channel 1
fniom-4(conf-if-po-1)#channel-member TenGigabitEthernet 0/4-7
fniom-4(conf)#no shutdown
Virtual Link Trunking (VLT)
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