Concept Guide
– For a 50-Gigabit Ethernet interface, enter the keyword fiftyGigE then the slot/port/subport information.
– For a 100-Gigabit Ethernet interface, enter the keyword hundredGigE then the slot/port/subport information.
– For a port channel interface, enter the keywords port-channel then a number.
If a downstream interface in an uplink-state group is disabled (Oper Down state) by uplink-state tracking because an upstream port is 
down, the message error-disabled[UFD] displays in the output.
• Display the current conguration of all uplink-state groups or a specied group.
EXEC mode or UPLINK-STATE-GROUP mode
(For EXEC mode) show running-config uplink-state-group [group-id]
(For UPLINK-STATE-GROUP mode) show configuration
– group-id: The values are from 1 to 16.
Examples of Viewing UFD Information (S50)
The following example shows viewing the uplink state group status.
The following example shows viewing the interface status with UFD information.
DellEMC#show interfaces tengigabitethernet 1/15/1
TenGigabitEthernet 1/15/1 is up, line protocol is down (error-disabled[UFD])
Hardware is Force10Eth, address is 00:01:e8:32:7a:47
 Current address is 00:01:e8:32:7a:47
Interface index is 280544512
Internet address is not set
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 1000 Mbit, Mode auto
Flowcontrol rx off tx off
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 00:25:46
Queueing strategy: fifo
Input Statistics:
 0 packets, 0 bytes
 0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
 0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
 0 Multicasts, 0 Broadcasts
 0 runts, 0 giants, 0 throttles
 0 CRC, 0 overrun, 0 discarded
Output Statistics:
 0 packets, 0 bytes, 0 underruns
 0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
 0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
 0 Multicasts, 0 Broadcasts, 0 Unicasts
 0 throttles, 0 discarded, 0 collisions
Rate info (interval 299 seconds):
 Input 00.00 Mbits/sec, 0 packets/sec, 0.00% of line-rate
 Output 00.00 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Time since last interface status change: 00:01:23
The following example shows viewing the UFD conguration.
DellEMC(conf-uplink-state-group-16)# show configuration
!
uplink-state-group 16
no enable
description test
downstream disable links all
downstream TenGigabitEthernet 1/21/1
upstream TenGigabitEthernet 1/22/1
upstream Port-channel 8
1002
Uplink Failure Detection (UFD)










