Reference Guide

Virtual Link Trunking (VLT) | 1007
Use the following procedure to configure enhanced VLT between two VLT domains on your network.
Refer to eVLT Configuration Example for a sample configuration.
3 Enter the VLAN ID number of the VLAN where the
VLT forwards packets received on the VLTi from an
adjacent peer that is down.
Range: 1 to 4094.
peer-down-vlan vlan
interface number
VLT DOMAIN
CONFIGURATION
(Optional) Configure Enhanced VLT (eVLT)
Step Task Command Syntax Command Mode
Set up the VLT domain
1 Configure the port channel to be used for the VLT
interconnect on a VLT switch and enter interface
configuration mode.
Enter the same port-channel number configured with the
peer-link port-channel command in the Enable VLT
and Create a VLT Domain steps.
interface port-channel
id-number
CONFIGURATION
2 Add one or more port interfaces to the port channel.
interface specifies one of the following interface types:
1-Gigabit Ethernet: Enter gigabitethernet slot/port.
10-Gigabit Ethernet: Enter tengigabitethernet slot/port.
channel-member interface
INTERFACE
PORT-CHANNEL
3 Enter VLT-domain configuration mode for a specified
VLT domain.
Range of domain IDs: 1 to 1000.
vlt domain domain-id
CONFIGURATION
4 Enter the port-channel number that will act as the
interconnect trunk.
Range: 1 to 128.
peer-link port-channel
id-number
VLT DOMAIN
CONFIGURATION
5 Configure the IP address of the management interface
on the remote VLT peer to be used as the endpoint of the
VLT backup link for sending out-of-band hello
messages.
You can optionally specify the time interval used to
send hello messages. Range: 1 to 5 seconds.
back-up destination
ip-address [interval seconds]
VLT DOMAIN
CONFIGURATION
(Optional) Configure a VLT VLAN peer-down
Step Task Command Syntax Command Mode