Administrator Guide

EXEC mode
Dell# show interfaces port brief
Codes: L - LACP Port-channel
O - OpenFlow Controller Port-channel
LAG Mode Status Uptime Ports
127 L2 up 00:18:22 Fo 0/33 (Up)<<<<<<<<ICL LAG
Fo 0/37 (Up)
L 128 L2 up 00:00:00 Fo 0/41 (Up)<<<<<<<<Uplink LAG
Virtual Link Trunking (VLT) in PMUX Mode
VLT allows the physical links between two devices (known as VLT nodes or peers) within a VLT domain to be considered a single
logical link to connected external devices.
For VLT operations, use the following congurations on both the primary and secondary VLT. Ensure the VLTi links are connected
and administratively up. VLTi connects the VLT peers for VLT data exchange.
1. Congure VLTi.
Dell#configure
Dell(conf)#int port-channel 127
Dell(conf-if-po-127)# channel-member fortygige 0/33,37
Dell(conf-if-po-127)# no shutdown
Dell(conf-if-po-127)# end
2. Congure the VLT domain.
Dell#configure
Dell(conf)#vlt domain 1
Dell(conf-vlt-domain)# peer-link port-channel 127
-> VLT peer destination
Dell(conf-vlt-domain)# back-up destination 169.254.31.23
Dell(conf-vlt-domain)#system-mac mac-address
00:01:09:06:06:06
->
unit-id 0 – VLT Primary, unit-id 1 – VLT Secondary
Dell(conf-vlt-domain)# unit-id 0
Dell(conf-vlt-domain)#end
3. Congure the VLT port channel. In the following example, the local and remote VLT port-channels are the same but you can also
use dierent VLT port-channels.
Dell#configure
Dell(conf)#int port-channel 128
Dell(conf-if-po-128)# portmode hybrid
Dell(conf-if-po-128)# switchport
Dell(conf-if-po-128)# vlt-peer-lag port-channel 128
Dell(conf-if-po-128)# link-bundle-monitor enable
Dell(conf-if-po-128)# no shutdown
Dell(conf-if-po-128)# end
4. Show the VLT peer status.
Dell#show vlt brief
VLT Domain Brief
------------------
Domain ID: 1
Role: Primary
Role Priority: 32768
ICL Link Status: Up
HeartBeat Status: Up
VLT Peer Status: Up
Local Unit Id: 0
Version: 6(2)
Local System MAC address: 00:01:e8:e1:e1:c3
Remote System MAC address: f8:b1:56:0e:b1:7f
PMUX Mode of the IO Aggregator
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