Users Guide

● If you disable an uplink-state group, the downstream interfaces are not disabled, regardless of the state of the upstream
interfaces.
● If you do not assign upstream interfaces to an uplink-state group, the downstream interfaces are not disabled.
Configuration:
1. Create an uplink-state group in CONFIGURATION mode.
uplink-state-group group-id
2. Configure the upstream and downstream interfaces in UPLINK-STATE-GROUP mode.
upstream {interface-type | interface-range[ track-vlt-status ] | VLTi}
downstream {interface-type | interface-range}
3. (Optional) Disable uplink-state group tracking in UPLINK-STATE-GROUP mode.
no enable
4. (Optional) Provide a descriptive name for the uplink-state group in UPLINK-STATE-GROUP mode.
name string
5. Configure the number of downstream interfaces to disable, when an upstream interface goes down in UPLINK-STATE-
GROUP mode.
downstream disable links{number | all}
6. (Optional) Enable auto-recovery of downstream interfaces that are disabled in UPLINK-STATE-GROUP mode.
downstream auto-recover
7. (Optional) Configure the timer to defer the UFD actions on downstream ports in UPLINK-STATE-GROUP mode. When you
have configured to track the VLT status in a VLT network, if VLT port-channel is an upstream member of uplink-state group,
then the defer timer triggers when the VLT status goes operationally down instead of the operational status of the peer
port-channel.
defer-time timer
8. (Optional) Clear the UFD error disabled state of downstream interfaces in EXEC mode.
clear ufd-disable
Configure uplink state group
OS10(config)# uplink-state-group 1
OS10(conf-uplink-state-group-1)# upstream ethernet 1/1/7:1
OS10(conf-uplink-state-group-1)# downstream ethernet 1/1/1-1/1/5
OS10(conf-uplink-state-group-1)# downstream ethernet 1/1/9:2-1/1/9:3
OS10(conf-uplink-state-group-1)# enable
OS10(conf-uplink-state-group-1)# name UFDGROUP1
OS10(conf-uplink-state-group-1)# defer-time 10
OS10(conf-uplink-state-group-1)# no downstream auto-recover
OS10(conf-uplink-state-group-1)# downstream disable links 2
View uplink state group configuration
OS10#show uplink-state-group 1
Uplink State Group: 1 Status: Enabled,down
OS10# show uplink-state-group 1 detail
(Up): Interface up (Dwn): Interface down (Dis): Interface disabled
Uplink State Group : 1 Status : Enabled,up Name : UFDGROUP1
Defer Time : 10 second(s)
Upstream Interfaces : Eth 1/1/7:1(Up)
Downstream Interfaces: Eth 1/1/1(Dwn) Eth 1/1/2(Dwn) Eth 1/1/3(Dwn) Eth 1/1/4(Dwn)
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Uplink Failure Detection