API Guide

OS10 does not support adding a VLTi link member to the uplink-state group. You can add the VLTi link as upstream member to
an uplink-state group using the upstream VLTi command. If the VLTi link is not available in the system, OS10 allows adding
the VLTi link as an upstream member. In this case, UFD starts tracking the operational status of the VLTi link when the link is
available. Until the VLTi link is available, the show uplink-state-group details command displays the status of the link
as NA.
In the following example, both the VLT port-channel connected to the switch and the VLTi Link are upstream members. The
VLT port-channel connected to the server is a downstream member. The UFD tracks the operational status of the peer port-
channel.
NOTE:
You cannot configure a VLTi link as a downstream member in an uplink-state group. If you configure, UFD disables
the VLTi link when the upstream members are operationally down, which affects the VLT functionality.
Uplink Failure Detection 1315