Reference Guide

Virtual Link Trunking (VLT) | 305
7 When you create a VLT domain on a switch, the FTOS
software automatically assigns a unique unit ID (0 or 1)
to each peer switch. The unit IDs are used for internal
system operations.
Use the unit-id
command to explicitly configure the
default values on each peer switch.
You must configure a different unit ID (0 or 1) on each
peer switch.
Use this command to minimize the time required for the
VLT system to determine the unit ID assigned to each
peer switch when one peer switch reboots.
unit-id {0 | 1}
VLT DOMAIN
CONFIGURATION
Configure Multi-Domain VLT.
8 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.
interface port-channel
id-number
CONFIGURATION
9 Place the interface in Layer 2 mode.
switchport
INTERFACE
PORT-CHANNEL
10 Associate the port channel to the corresponding port
channel in the VLT peer for the VLT connection to an
attached device.
Valid port-channel ID numbers are from 1 to 128.
vlt-peer-lag port-channel
id-number
INTERFACE
PORT-CHANNEL
11 Ensure that the port channel is active.
no shutdown
INTERFACE
PORT-CHANNEL
Add links to the mVLT port.
12 Configure a range of interfaces to bulk configure.
interface range
{port-channel id}
CONFIGURATION
13 Enable LACP on the LAN port.
port-channel-protocol
lacp
INTERFACE
14 Configure the LACP port channel mode.
port-channel number mode
[active]
INTERFACE
15 Ensure that the interface is active.
no shutdown
MANAGEMENT
INTERFACE
16 Repeat steps 1 through 15 for the VLT peer node in Domain 1.
17 Repeat steps 1 through 15 for the first VLT node in Domain 2.
18 Repeat steps 1 through 15 for the VLT peer node in Domain 2.
(Optional) Configure Multi-Domain VLT (mVLT)
Step Task Command Syntax Command Mode