Administrator Guide

2. Remove an IP address from the interface.
INTERFACE PORT-CHANNEL mode
no ip address
3. Add one or more port interfaces to the port channel.
INTERFACE PORT-CHANNEL mode
channel-member interface
interface: specify one of the following interface types:
● 1-Gigabit Ethernet: Enter gigabitethernet slot/port.
● 10-Gigabit Ethernet: Enter tengigabitethernet slot/port.
● 40-Gigabit Ethernet: Enter fortyGigE slot/port.
4. Ensure that the port channel is active.
INTERFACE PORT-CHANNEL mode
no shutdown
5. Repeat Steps 1 to 4 on the VLT peer switch to configure the VLT interconnect.
Enabling VLT and Creating a VLT Domain
To enable VLT and create a VLT domain:
1. Enable VLT on a switch, then configure a VLT domain and enter VLT-domain configuration mode.
CONFIGURATION mode
vlt domain domain-id
The domain ID range is from 1 to 1000.
Configure the same domain ID on the peer switch to allow for common peering. VLT uses the domain ID to automatically
create a VLT MAC address for the domain. If you do not configure the system explicitly, the system mac-address of the
primary will be the VLT MAC address for the domain.
To disable VLT, use the no vlt domain command.
NOTE: Do not use MAC addresses such as “reserved” or “multicast.”
2. 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.
VLT DOMAIN CONFIGURATION mode
back-up destination {ipv4–address] | ipv6 ipv6–address [interval seconds]}
You can optionally specify the time interval used to send hello messages. The range is from 1 to 5 seconds.
3. Configure the port channel to be used as the VLT interconnect between VLT peers in the domain.
VLT DOMAIN CONFIGURATION mode
peer-link port-channel id-number
4. (Optional) After you configure a VLT domain on each peer switch and connect (cable) the two VLT peers on each side of
the VLT interconnect, the system elects a primary and secondary VLT peer device (see Primary and Secondary VLT Peers).
To configure the primary and secondary roles before the election process, use the primary-priority command. Enter a
lower value on the primary peer and a higher value on the secondary peer.
VLT DOMAIN CONFIGURATION mode
primary-priority value
The priority values are from 1 to 65535. The default is 32768.
If the primary peer fails, the secondary peer (with the higher priority) takes the primary role. If the primary peer (with the
lower priority) later comes back online, it is assigned the secondary role (there is no preemption).
5. (Optional) Enabled BMP booting of a TOR device through VLT nodes.
CONFIGURATION mode
lacp ungroup member-independent {vlt | port-channel port-channel-id}
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Virtual Link Trunking (VLT)