Two 6509's with FA0 Errors & Poor Reliability on WS-X6101-OC12 Module

[martin.kayes]

Hi,

I have two 6509's, at seperate locations on a 622Mbps ATM WAN and they are both exhibiting the same 'errors' on the Fa0 interface of the WS-X6101-OC12-SMF ATM module.

When I session onto the WS-X6101-OC12 module and do a 'sho int' all is ok except for the FastEthernet Interface to the backplane. It shows 129/255 reliability and output errors almost matching the output packet count.

Both 6509's have the same problem. One 6509 has dual Supervisor I's with MSFC1's and the other has a dual Supervisor II's with MSFC2's.

Here is the sho int Fa0 output. Can you help confirm if this is a known problem or is it normal for this particular interface.

Many thanks,

Martin

Core_1_ATM#sho int fa0

FastEthernet0 is up, line protocol is up

Hardware is AmdFE, address is 0000.0500.0000 (bia 0000.0500.0000)

Internet address is 127.0.0.50/8

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

reliability 129/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Unknown duplex, Unknown Speed

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 never

Queueing strategy: fifo

Output queue 0/40, 0 drops; input queue 0/75, 0 drops

5 minute input rate 3000 bits/sec, 7 packets/sec

5 minute output rate 3000 bits/sec, 7 packets/sec

138688986 packets input, 2636540910 bytes

Received 0 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

140552200 packets output, 1085913711 bytes, 2388 underruns

140552199 output errors, 2153 collisions, 0 interface resets

0 babbles, 0 late collision, 18528 deferred

140552199 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

[cminch]

Hi,

You might want to look at the Field notices, and maybe in the Bug Tool.

http://www.cisco.com/en/US/products/hw/switches/ps700/products_field_notice09186a00801b0e00.shtml

Either way you look it doesn't look good. The reliability should not be normally like that but 255/255. So there is a problem.

Regards,

Corey

[martin.kayes]

Hi Corey,

Thanks for the info and the confirmation that it is a fault. I have already had a look at the bug tool already and did not find anything useful.

Although not a perfect match, the Field notice does look quite interesting and may be worth trying. However this as a core network in a hospital and I cannot easily get down-time so I will have to keep looking for a more specific solution for now.

Many thanks,

Martin