Users Guide
3 Verify the connection.
By default the network ports on the PowerEdge FC-Series servers installed in the FX2 chassis is down, until the uplink port channel is
operational on the FN IOM system. It is due to an Uplink Failure Detection, by that when upstream connectivity fails; the FN IOM disables
the downstream links.
You can disable the UFD on a precongured FN IOM using the following commands:
Dell#configure
Dell(conf)#uplink-state-group 1
Dell(conf-uplink-state-group-1)#no enable
Dell#show uplink-state-group
Uplink State Group: 1 Status: Disabled, Down
To re-enable UFD, use the following commands:
Dell#configure
Dell(conf)#uplink-state-group 1
Dell(conf-uplink-state-group-1)#enable
Dell#show uplink-state-group
Uplink State Group: 1 Status: Enabled, Up
Sample FN IOM commands and outputs
In the following, port channel 128 is up. The port channel consists of ports TenGigabitEthernet 0/11 and TenGigabitEthernet 0/12.
Dell#show interfaces port-channel 128
Port-channel 128 is up, line protocol is up
Created by LACP protocol
Hardware address is f8:b1:56:6e:fc:59, Current address is f8:b1:56:6e:fc:59
Interface index is 1258356736
Minimum number of links to bring Port-channel up is 1
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :f8b1566efc59
MTU 12000 bytes, IP MTU 11982 bytes
LineSpeed 20000 Mbit
Members in this channel: Te 0/11(U) Te 0/12(U)
ARP type: ARPA, ARP Timeout 04:00:00
Queueing strategy: fifo
Input Statistics:
194 packets, 26975 bytes
40 64-byte pkts, 47 over 64-byte pkts, 83 over 127-byte pkts
24 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
160 Multicasts, 34 Broadcasts, 0 Unicasts
0 runts, 0 giants, 0 throttles
0 CRC, 0 overrun, 0 discarded
Output Statistics:
1619 packets, 212604 bytes, 0 underruns
0 64-byte pkts, 201 over 64-byte pkts, 1376 over 127-byte pkts
42 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
1531 Multicasts, 88 Broadcasts, 0 Unicasts
0 throttles, 0 discarded, 0 collisions, 0 wreddrops
Rate info (interval 299 seconds):
Input 00.00 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Output 00.00 Mbits/sec, 1 packets/sec, 0.00% of line-rate
Time since last interface status change: 00:13:45
In the following, port channel 128 is down. As a result, the downstream ports (TenGigabitEthernet 0/1 – 8) are disabled by UFD.
Dell#show interfaces tengigabitethernet 0/1
TenGigabitEthernet 0/1 is up, line protocol is down(error-disabled[UFD])
Hardware is DellEth, address is f8:b1:56:6e:fc:59
Current address is f8:b1:56:6e:fc:59
Server Port AdminState is N/A
Pluggable media not present
Interface index is 1048580
Internet address is not set
Before You Start
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