[c-nsp] non-existing input errors on 6500/SXI...?

Gert Doering gert at greenie.muc.de
Fri Oct 21 12:01:02 EDT 2011


Hi,

I have a one port on a 7603/sup32/SXI that is showing me "input errors" 
but refuses to tell what *sort* of errors...

GigabitEthernet1/9 is up, line protocol is up (connected)
...
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 8818000 bits/sec, 2562 packets/sec
  5 minute output rate 24086000 bits/sec, 3252 packets/sec
     49922820560 packets input, 18467489252395 bytes, 0 no buffer
     Received 189510308 broadcasts (86256414 multicasts)
     0 runts, 0 giants, 0 throttles 
     1815587 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     65761578040 packets output, 73084507578266 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     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

Cisco-M>sh int g1/9 count err

Port            Align-Err    FCS-Err   Xmit-Err    Rcv-Err UnderSize OutDiscards
Gi1/9                   0          0          0    1815644         0           0

Port          Single-Col Multi-Col  Late-Col Excess-Col Carri-Sen     Runts      Giants
Gi1/9                  0         0         0          0         0         0           0

Port           SQETest-Err Deferred-Tx IntMacTx-Err IntMacRx-Err Symbol-Err
Gi1/9                    0           0            0            0          0


so, right, it's "Rcv-Err", but what sort of errors?  Nothing in any of
the other columns, and operationally, the link is behaving perfectly normal,
so I'm not overly worried - just annoyed by our NMS flagging the link as
"hey, errors, check!" all the time...

This is a Sup32, onboard GE, SXI3.  The interface goes to a 2960G, about
2m of cat6 cable, nothing particularily exciting.

interface GigabitEthernet1/9
 description SW: sp1/xxx:g0/14 (sp1)
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 2-999
 switchport mode trunk
 storm-control broadcast level 1.00

and the other end is symmetric:

interface GigabitEthernet0/14
 description SW: sp1/xxx:gi1/9 (sp1)
 switchport trunk allowed vlan 2-21,23-999
 switchport mode trunk
 storm-control broadcast level pps 1k 100
 storm-control multicast level pps 1k 100
 storm-control action trap
end


... so how to figure out where these errors are coming from?

(No smartnet on this particular box, so I can't go ask TAC)

gert
-- 
USENET is *not* the non-clickable part of WWW!
                                                           //www.muc.de/~gert/
Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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