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arp problem

This is been happening since the last 3 days. Everyday there is a device on the network which was communicating with the network perfectly fine just stop responding. After clearing the arp table on the MSFC in the 6509 switch, the device starts responding back. This has happened to servers, clients, network switches, and there is no IP address duplication either.

The only relating factor could be that we inserted a GBIC module on the 6509 switch on the day since we started having this problem. We did get an error while inserting the GBIC blade which is listed below,

32. 1/16/2004,06:56:01: RxSBIF_SEQ_NUM_ERROR:slot=5, pinnacleMask=0X1, errSeqNum=f,source Index=0X7ffd, errorType=0X2

33. 1/16/2004,06:56:01: RxSBIF_SEQ_NUM_ERROR:slot=9, pinnacleMask=0X1, errSeqNum=f,source Index=0X7ffd, errorType=0X2

34. 1/16/2004,06:56:01: RxSBIF_SEQ_NUM_ERROR:slot=7, pinnacleMask=0X1, errSeqNum=f,source Index=0X7ffd, errorType=0X2

35. 1/16/2004,06:56:01: RxSBIF_SEQ_NUM_ERROR:slot=8, pinnacleMask=0X1, errSeqNum=f,source Index=0X7ffd, errorType=0X2

36. 1/16/2004,06:56:01: RxSBIF_SEQ_NUM_ERROR:slot=6, pinnacleMask=0X1, errSeqNum=f,source Index=0X7ffd, errorType=0X2

37. 1/16/2004,06:56:01: RxSBIF_SEQ_NUM_ERROR:slot=4, pinnacleMask=0X1, errSeqNum=f,source Index=0X7ffd, errorType=0X2

38. 1/16/2004,06:56:01: RxSBIF_SEQ_NUM_ERROR:slot=4, pinnacleMask=0X2, errSeqNum=f,source Index=0X7ffd, errorType=0X2

We have since reseated the GBIC module in question and the error message listed above did not repeat.

Will appreciate feedback that will help resolve this problem with the arp table..

1 REPLY
Bronze

Re: arp problem

You'll probably have to start investigating the ARP/CAM table entries for a given device (if there are any) whenever it stops responding. This will at least tell you if invalid entries are appearing in the tables somehow.

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