Users Guide

Sample Configuration: Uplink Failure
Detection
The following example shows a sample configuration of UFD on a switch/router in which you configure as
follows.
• Configure uplink-state group 3.
• Add downstream links Tengigabitethernet 0/1, 0/2, 0/5, 0/9, 0/11, and 0/12.
• Configure two downstream links to be disabled if an upstream link fails.
• Add upstream links Tengigabitethernet 0/3 and 0/4.
• Add a text description for the group.
• Verify the configuration with various show commands.
Example of Configuring UFD (S50)
Dell(conf)# uplink-state-group 3
00:08:11: %STKUNIT0-M:CP %IFMGR-5-ASTATE_UP: Changed uplink state group Admin
state to up:
Group 3
Dell(conf-uplink-state-group-3)# downstream tengigabitethernet 0/1-2,5,9,11-12
Dell(conf-uplink-state-group-3)# downstream disable links 2
Dell(conf-uplink-state-group-3)# upstream tengigabitethernet 0/3-4
00:10:00: %STKUNIT0-M:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-
disabled:
Te 0/1
Dell#
00:10:00: %STKUNIT0-M:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Te
0/1
Dell(conf-uplink-state-group-3)#
description Testing UFD feature
Dell(conf-uplink-state-group-3)# show config
!
uplink-state-group 3
description Testing UFD feature
downstream disable links 2
downstream TengigabitEthernet 0/1-2,5,9,11-12
upstream TengigabitEthernet 0/3-4
Dell(conf-uplink-state-group-3)#
Dell(conf-uplink-state-group-3)#exit
Dell(conf)#exit
Dell#
00:13:06: %STKUNIT0-M:CP %SYS-5-CONFIG_I: Configured from console by console
Dell#
show running-config uplink-state-group
!
uplink-state-group 3
description Testing UFD feature
downstream disable links 2
downstream TengigabitEthernet 0/1-2,5,9,11-12
upstream TengigabitEthernet 0/3-4
Dell#
show uplink-state-group 3
Uplink State Group: 3 Status: Enabled, Up
Dell# show uplink-state-group detail
Uplink Failure Detection (UFD) 1131