API Guide

When the VLT backup link is enabled, the secondary VLT peer identifies the node liveliness of primary through the backup link. If
the primary VLT peer is up, the secondary VLT peer brings down the VLT port channels. In this scenario, the STP opens up the
orphan port and there is no loop in the system, as shown:
Configure a VLT port channel
A VLT port channel, also known as a virtual link trunk, links an attached device and VLT peer switches. OS10 supports a
maximum of 128 VLT port channels per node.
1. Enter the port channel ID number on the VLT peer in INTERFACE mode, from 1 to 128.
interface port-channel id-number
2. Assign the same ID to a VLT port channel on each VLT peer. The peers are seen as a single switch to downstream devices.
vlt-port-channel vlt-port-channel-id
3. Repeat the steps on the VLT peer.
1288
Virtual Link Trunking