ASR1001-X ping issue

[AllezLom63194]

Hello,

I have a Cisco Router ASR1001-X IOS 16.06.07 connected to a switch using SFP module and copper cable.

All was fine but 3 days ago during a check task I have seen that the routeur doesn't respond to ping on the IP address configured on this interface.

I have reloaded the router, unplug then plug the SFP module, force the speed and duplex on the interface but the problem is still there.

The switch, where the router is connected to, doesn't see mac address on the port connected to the router.

When the port is shut at one end, the other end goes down. Same when I unpluge the SFP module or the câble.

This interface is configured as 802.1Q encapsuled.

I configured it as access interface but the problem was still there.

I have lot of output errors when I run a show interface and no packets sent ou received

RTR-DC-4101#sh int gi 0/0/1
GigabitEthernet0/0/1 is up, line protocol is up
Hardware is BUILT-IN-2T+6X1GE, address is 10b3.d690.0103 (bia 10b3.d690.0103)
Description: LAN
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation 802.1Q Virtual LAN, Vlan ID 1., loopback not set
Keepalive not supported
Full Duplex, 1000Mbps, link type is force-up, media type is T
output flow-control is on, input flow-control is on
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 01:20:07, output hang never
Last clearing of "show interface" counters never
Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 packets output, 0 bytes, 0 underruns
569 output errors, 0 collisions, 2 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

The switch send packets but the router that doesn't seem to received them !!!

The switch receives no packets from the router.

I have no more idees. Any help would be welcome.

Regards, Emmanuel.

[Georg Pauwen]

Hello,

that sounds like a physical (cabling ?) problem. What switch is connected on that port ?

[AllezLom63194]

Hello,

The router is connected to à Dell S3048 switch.

I have a case openned with Dell technical support. They have approuved the switch configuration.

I think that the problems comes from the router because of  569 output errors on the interface that I can't explane.

Many thanks.

[paul driver]

Hello
Default the interface and and do not hardcode the speed-duplex setting, if that doesnt work, create a sub-interface and test it, lasty try anoher physcal port and copper sfp

Also check the module card for errors.

sh platform
sh platform diag

[AllezLom63194]

Hello Paul,

Thanks for your help.

I have already tested default interface, and creat a sub-interface. It didn't solve the problem.

I'm not near the router but in couple of days I'll try to change the SFP module.

The Output errors on the interface is strange.

I have 2 interfaces that have the same problem. Its' strange too.

Reghards.

[AllezLom63194 · Accepted solution]

Hello Community,

I have power off the router, replaced the SFP module then power on the router and all works fine from now.

Many thhanks for your help.

Regards.

[Dipak Masurkar]

I Am having similar kind of problem, where i am using ASR1006X router and have created loopback interface but not able to ping that interface can anyone suggest on it, even pysical interfaces also not pinging.

[Vincent5]

Hello! I also have this issue with a ASR1001-X

I have uplink but I get output errors.

Have tried unplugging SFP, restart but same issue remains.

Tried different SFP's as well. 

Any other ideas we can try?

#sh int gi0/0/2
GigabitEthernet0/0/2 is up, line protocol is up
  Hardware is BUILT-IN-2T+6X1GE, address is 7c0e.cef4.2f40 (bia 7c0e.cef4.2f04)
  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive not supported
  Full Duplex, 1000Mbps, link type is auto, media type is T
  output flow-control is on, input flow-control is on
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:12, output hang never
  Last clearing of "show interface" counters 00:38:30
  Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 packets output, 0 bytes, 0 underruns
     161 output errors, 0 collisions, 1 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
     2 carrier transitions