Administrator Guide

Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 4096, Address 0001.e88a.d656
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 800 4096 0001.e88a.d656 128.2
Po 3 128.4 128 200000 DIS 800 4096 0001.e88a.d656 128.4
Po 4 128.5 128 200000 DIS 800 4096 0001.e88a.d656 128.5
Po 100 128.101 128 800
FWD(VLTi) 800 0 0001.e88a.dff8 128.101
Po 110 128.111 128 00 FWD(vlt) 800 4096 0001.e88a.d656 128.111
Po 111 128.112 128 200000
DIS(vlt) 800 4096 0001.e88a.d656 128.112
Po 120 128.121 128 2000
FWD(vlt) 800 4096 0001.e88a.d656 128.121
Dell_VLTpeer2# show spanning-tree rstp brief
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 Congurations
To congure VLT, congure a backup link and interconnect trunk, create a VLT domain, congure 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 congurations.
Conguring 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
Congure the backup link.
Dell_VLTpeer1(conf)#interface ManagementEthernet 0/0
Dell_VLTpeer1(conf-if-ma-0/0)#ip address 10.11.206.23/
Dell_VLTpeer1(conf-if-ma-0/0)#no shutdown
Dell_VLTpeer1(conf-if-ma-0/0)#exit
Congure 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 0/56,60
Dell_VLTpeer1(conf-if-po-100)#no shutdown
Dell_VLTpeer1(conf-if-po-100)#exit
Virtual Link Trunking (VLT)
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