Deployment Guide

55 Leaf-Spine Deployment and Best Practices Guide | Version 1.0
L2-Spine1-S6010#show vlt mismatch
L2-Spine1-S6010#
L2-Leaf1-S4048#show vlt mismatch
L2-Leaf1-S4048#
9.3.4 show uplink-state-group
This command is used to validate the UFD status on leaf switches in this topology. Status: Enabled, Up
indicates UFD is enabled and no interfaces are currently disabled by UFD.
S4048-Leaf1#show uplink-state-group
Uplink State Group: 1 Status: Enabled, Up
If an interface happens to be disabled by UFD, the show uplink-state-group command output will
appear as follows:
Uplink State Group: 1 Status: Enabled, Down
Note: When an interface has been disabled by UFD, the show interfaces interface command for
affected interfaces indicates it is error-disabled as follows:
S4048-Leaf-1#show interfaces te 1/48
TenGigabitEthernet 1/48 is up, line protocol is down(error-disabled[UFD])
-- Output truncated –-
9.3.5 show spanning-tree rstp brief
This command validates spanning tree is enabled. All interfaces are forwarding (Sts column shows FWD)
because VLT is configured at the leaf and spine layers, eliminating the need for blocked ports. One of the
spine switches (L2-Spine1-S6010 in this example) is the root bridge. Sever-facing interfaces on leaf switches
(L2-Leaf1-S4048 interface Te 1/48 in this example) are edge ports.
L2-Spine1-S6010#show spanning-tree rstp brief
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 0, Address f48e.382b.0869
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 0, Address f48e.382b.0869
We are the root
Configured hello time 2, max age 20, forward delay 15
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
---------- -------- ---- ------- ----------- ----- -------------------- --------
Po 1 128.2 128 188 FWD(vlt) 0 0 f48e.382b.0869 128.2
Po 2 128.3 128 188 FWD(vlt) 0 0 f48e.382b.0869 128.3