RE: Broken 3640?

[Martin Taylor <marty_taylor () yahoo com>]

wouldn't this question be better served at: 

comp.dcom.sys.cisco

it doesn't seem to fit the NANOG charter.

marty
--- Jeff Wheat <jeff () cetlink net> wrote:
> We have an almost identical problem. I have a 3640
> connected to a catalyst
> 2924XL. I have the switch and router both locked at
> 100/fdx. The crc error
> counters increment on the switch. According to
> cisco, this is related to
> bug id CSCdm49462. In short, when using ISL, the
> keeplives are not encap'd
> so the switch sees this as a crc error. The
> workaround is to disable
> keepalives
> on the router for that interface. Well we have tried
> this and this does not
> make a difference at all. We are still having
> lockups and continous crc
> errors.
> Bug id CSCdm49462 is a duplicate of CSCdm31600,
> which has been closed as
> there
> is a workaround (disable keepalives). If anyone can
> offer anything else on
> this
> I would very much appreciate it. (We have done the
> obvious and replaced
> cables
> and interfaces.)
>
>
> 2924XL:
> FastEthernet0/1 is up, line protocol is up
>   Hardware is Fast Ethernet, address is
> 0001.4257.e241 (bia 0001.4257.e241)
>   Description: ISL Trunk Feed to RHSC Core
> FastEthernet2/0
>   MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
>      reliability 255/255, txload 26/255, rxload
> 9/255
>   Encapsulation ARPA, loopback not set
>   Keepalive not set
>   Full-duplex, 100Mb/s, 100BaseTX/FX
>   ARP type: ARPA, ARP Timeout 04:00:00
>   Last input 00:00:58, output 00:00:00, output hang
> never
>   Last clearing of "show interface" counters
> 21:28:28
>   Queueing strategy: fifo
>   Output queue 0/40, 0 drops; input queue 0/75, 0
> drops
>   5 minute input rate 3788000 bits/sec, 2043
> packets/sec
>   5 minute output rate 10293000 bits/sec, 2302
> packets/sec
>      144755645 packets input, 235743734 bytes
>      Received 154190 broadcasts, 0 runts, 0 giants,
> 0 throttles
>      89993 input errors, 89993 CRC, 0 frame, 0
> overrun, 585 ignored
>      0 watchdog, 60165 multicast
>      0 input packets with dribble condition detected
>      153666041 packets output, 3705280485 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 output buffer failures, 0 output buffers
> swapped out
>
> 3640:
> FastEthernet2/0 is up, line protocol is up
>   Hardware is AmdFE, address is 00e0.1edf.8ba0 (bia
> 00e0.1edf.8ba0)
>   Description: RockHill Main and Colo Lans
>   MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
>      reliability 255/255, txload 10/255, rxload
> 26/255
>   Encapsulation ARPA, loopback not set
>   Keepalive not set
>   Full-duplex, 100Mb/s, 100BaseTX/FX
>   ARP type: ARPA, ARP Timeout 04:00:00
>   Last input 00:00:00, output 00:00:00, output hang
> never
>   Last clearing of "show interface" counters 1w2d
>   Queueing strategy: fifo
>   Output queue 0/40, 33091 drops; input queue 0/75,
> 370786 drops
>   5 minute input rate 10277000 bits/sec, 2335
> packets/sec
>   5 minute output rate 4235000 bits/sec, 2078
> packets/sec
>      1450782711 packets input, 3672702950 bytes
>      Received 6487551 broadcasts, 0 runts, 0 giants,
> 0 throttles
>      0 input errors, 0 CRC, 0 frame, 0 overrun, 0
> ignored
>      0 watchdog, 0 multicast
>      0 input packets with dribble condition detected
>      1373258222 packets output, 2317298953 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 output buffer failures, 0 output buffers
> swapped out
>
> Regards,
> Jeff
>
> > Lock the ports on the switch to 100FD, try a
> different switch...
> > > Heres a followup.
> > >
> > > This is a show int on the interface.
> > >
> > > FastEthernet2/0 is up, line protocol is up
> > >   Hardware is AmdFE, address is 0050.547b.e8c0
> (bia 0050.547b.e8c0)


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