Administrator Guide

Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 0, Address 0001.e88a.dff8
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 0, Address 0001.e88a.dff8
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 200000 DIS 0 0 0001.e88a.dff8 128.2
Po 3 128.4 128 200000 DIS 0 0 0001.e88a.dff8 128.4
Po 4 128.5 128 200000 DIS 0 0 0001.e88a.dff8 128.5
Po 100 128.101 128 800 FWD(VLTi)0 0 0001.e88a.dff8 128.101
Po 110 128.111 128 00 FWD(vlt) 0 0 0001.e88a.dff8 128.111
Po 111 128.112 128 200000 DIS(vlt) 0 0 0001.e88a.dff8 128.112
Po 120 128.121 128 2000 FWD(vlt) 0 0 0001.e88a.dff8 128.121
Additional VLT Sample Configurations
To configure VLT, configure a backup link and interconnect trunk, create a VLT domain, configure a backup link and interconnect trunk,
and connect the peer switches in a VLT domain to an attached access device (switch or server).
Review the following examples of VLT configurations.
Configuring Virtual Link Trunking (VLT Peer 1)
Enable VLT and create a VLT domain with a backup-link and interconnect trunk (VLTi).
Dell_VLTpeer1(conf)#vlt domain 999
Dell_VLTpeer1(conf-vlt-domain)#peer-link port-channel 100
Dell_VLTpeer1(conf-vlt-domain)#back-up destination 10.11.206.35
Dell_VLTpeer1(conf-vlt-domain)#exit
Configure the backup link.
Dell_VLTpeer1(conf)#interface ManagementEthernet 1/1
Dell_VLTpeer1(conf-if-ma-1/1)#
ip address 10.11.206.23/
Dell_VLTpeer1(conf-if-ma-1/1)#no shutdown
Dell_VLTpeer1(conf-if-ma-1/1)#exit
Configure the VLT interconnect (VLTi).
Dell_VLTpeer1(conf)#interface port-channel 100
Dell_VLTpeer1(conf-if-po-100)#no ip address
Dell_VLTpeer1(conf-if-po-100)#channel-member fortyGigE 1/49,50
Dell_VLTpeer1(conf-if-po-100)#no shutdown
Dell_VLTpeer1(conf-if-po-100)#exit
Configure the port channel to an attached device.
Dell_VLTpeer1(conf)#interface port-channel 110
Dell_VLTpeer1(conf-if-po-110)#no ip address
Dell_VLTpeer1(conf-if-po-110)#switchport
Dell_VLTpeer1(conf-if-po-110)#channel-member fortyGigE 1/51
Dell_VLTpeer1(conf-if-po-110)#no shutdown
Dell_VLTpeer1(conf-if-po-110)#vlt-peer-lag port-channel 110
Dell_VLTpeer1(conf-if-po-110)#end
Verify that the port channels used in the VLT domain are assigned to the same VLAN.
Dell_VLTpeer1# show vlan id 10
Codes: * - Default VLAN, G - GVRP VLANs, P - Primary, C - Community, I - Isolated
Q: U - Untagged, T - Tagged
x - Dot1x untagged, X - Dot1x tagged
G - GVRP tagged, M - Vlan-stack, H - Hyperpull tagged
1022
Virtual Link Trunking (VLT)