Deployment Guide

22 Leaf-Spine Deployment and Best Practices Guide | Version 1.0
Configure the VLT interconnect between S4048-Leaf1 and S4048-Leaf2. In this configuration, add interfaces
fortyGigE 1/53-54 to static port channel 127 for the VLT interconnect. The backup destination is the
management IP address of the VLT peer switch. Enable peer routing.
Note: Dell EMC recommends that the VLTi is configured as a static LAG, without LACP, per the commands
shown below.
S4048-Leaf1
S4048-Leaf2
interface port-channel 127
description VLTi
channel-member fortyGigE 1/53 - 1/54
no shutdown
interface range fortyGigE 1/53 - 1/54
description VLTi
no shutdown
vlt domain 127
peer-link port-channel 127
back-up destination 100.67.187.34
unit-id 0
peer-routing
exit
interface port-channel 127
description VLTi
channel-member fortyGigE 1/53 - 1/54
no shutdown
interface range fortyGigE 1/53 - 1/54
description VLTi
no shutdown
vlt domain 127
peer-link port-channel 127
back-up destination 100.67.187.35
unit-id 1
peer-routing
exit
Configure each downstream server-facing interface with an LACP port channel. Configure each port channel
for VLT. Port channel 1 connects downstream to Server 1 and is configured as an RSTP edge port.
S4048-Leaf1
S4048-Leaf2
interface tengigabitethernet 1/4
description Server 1
port-channel-protocol LACP
port-channel 1 mode active
no shutdown
interface port-channel 1
description Server 1
portmode hybrid
switchport
spanning-tree rstp edge-port
vlt-peer-lag port-channel 1
no shutdown
interface tengigabitethernet 1/4
description Server 1
port-channel-protocol LACP
port-channel 1 mode active
no shutdown
interface port-channel 1
description Server 1
portmode hybrid
switchport
spanning-tree rstp edge-port
vlt-peer-lag port-channel 1
no shutdown