45交换机的日志问题，看不懂，请教原因或解决方法

[zegapain]

May 31 16:39:20.592 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 70 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:39:50.651 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 75 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:40:20.888 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 67 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:40:51.807 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 82 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:41:21.968 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 67 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:41:52.071 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 71 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:42:23.580 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 65 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:42:53.608 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 51 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:43:24.155 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 57 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:43:54.943 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 59 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20
May 31 16:44:25.715 CHN: %C4K_SWITCHINGENGINEMAN-4-IPPPRMINTERRUPT: (Suppressed 64 times)IPP PRM prmRwDataEvenErrInt interrupt. valid=1 parity_error=1 addr=0x5D23 data=0x20

[Rps-Cheers]

看起来是奇偶校验错误，奇偶校验可能是软件也可能是硬件的问题，如果是软件的问题，重启设备一般可以得到解决，如果是硬件问题，重启后依然会在短时间内发生，则需要RMA。关于这个问题，也有类似的bug说明，可以参考一下。

Symptom:

on c4500 switch, customer will see such 1 time parity error log about IPP module

example log:

"%C4K_SWITCHINGENGINEMAN IPPxxxINTERRUPT ... valid: 1 parityError: 1... data:0x.. address 0x..

C4K_SWITCHINGENGINEMAN IPPxxxINTERRUPTOUTERCRC IPP xxx outerCrcInt interrupt. valid: 1 superPortId: 0x14 lastCellAddr: 0x28CD8 firstCellAddr: 0x1FE48

C4K_SWITCHINGENGINEMAN IPP xxx INTERRUPTREFCNTMEMERR IPP xxx refCntMemErr interrupt. overflow: 0 overflowAddr: 0x14963 underflow: 1 underflowAddr: 0x13AA1 nonZeroRefCntOnFirstPid: 0 nonZeroRefCntOnFirstPidAddr: 0xC288 zeroRefCntOnNonFirstPid: 0 zeroRefCntOnNonFirstPidAddr: 0x3580 rep[0]: 0x52 rep[1]: 0x

===

XXX in IPPxxxINTERRUPT is module in IPP such as PRM,PSM,TMM or else.

This logging behavior is annoying and alarming to customers when infact there is no switch impact.

The messages should only be printed if recurring repeatedly.

this bug is enhancement for this behavior

Conditions: this log can occur on all c4500 switches

Workaround: no workaround

https://bst.cisco.com/bugsearch/bug/CSCvc05668