Users Guide

Number of transitions to forwarding state: 1
Edge port: No (default)
Link Type: Point-to-Point
BPDU Sent: 2714, Received: 1234
Port 2001 (VLT-LAG -1(vlt-portid-1)) of MSTI 0 is designated Forwarding
Port path cost 200000, Port priority 128, Port Identifier 128.2001
Designated root priority: 32768, address: 34:17:44:55:66:7f
Designated bridge priority: 32768, address: 90:b1:1c:f4:a5:23
Designated port ID: 128.2001, designated path cost: 0
Number of transitions to forwarding state: 1
Edge port: No (default)
Link Type: Point-to-Point
BPDU Sent: 2714, Received: 1234
Create the VLT domain
A VLT domain requires an ID number. Configure the same VLT domain ID on both peers. For more information, see the VLT
domain section. The no vlt-domain command disables VLT. Disabling VLT can cause loops in the network. Hence, use the
no form of the command cautiously.
1. Configure a VLT domain and enter VLT-DOMAIN mode. Configure the same VLT domain ID on each peer, from 1 to 255.
vlt-domain domain-id
2. Repeat the steps on the VLT peer to create the VLT domain.
Peer 1
OS10(config)# vlt-domain 1
OS10(conf-vlt-1)#
Peer 2
OS10(config)# vlt-domain 1
OS10(conf-vlt-1)#
Configure the VLTi
Before you configure the VLTi on peer interfaces, remove each interface from L2 mode with the no switchport command.
For more information, see the VLT interconnect section.
1. Enter the VLT domain ID to enter from CONFIGURATION mode.
vlt-domain domain-id
2. Configure one or a hyphen-separated range of VLT peer interfaces to become a member of the VLTi in INTERFACE mode.
discovery-interface {ethernet node/slot/port[:subport] | ethernet node/slot/
port[:subport] -node/slot/port[:subport]}
3. Repeat the steps on the VLT peer.
Peer 1
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# no switchport
OS10(conf-if-eth1/1/1)# exit
OS10(config)# interface ethernet 1/1/2
OS10(conf-if-eth1/1/2)# no switchport
OS10(conf-if-eth1/1/2)# exit
OS10(config)# vlt-domain 1
OS10(conf-vlt-1)# discovery-interface ethernet1/1/1
OS10(conf-vlt-1)# discovery-interface ethernet1/1/2
Virtual Link Trunking
1411