Help with error on 4507R with Sup V

Answered Question
Jun 18th, 2009
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Hi, I've been seeing these errors in the log of one of my 4507R switches and I need some help trying to interpret it:


Jun 18 13:32:03: %C4K_PKTPROCESSING-4-ERRORPACKET: Warning - Unexpected packet hitting output acl

pdd = 0x98000208, 0x80000076

118 bytes: 00 1C F6 DE 38 C0 00 19 BB 34 22 D6 08 00 45 00

00 64 71 A9 00 00 80 01 B2 F4 0A 0A 00 F5 0A 0A

00 F3 08 00 45 8E 00 08 C4 03 53 6F 6

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Output Acl HW Cam Stats

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 0 PacketCount: 8531106

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 2 PacketCount: 677

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 17 PacketCount: 7555084

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 48 PacketCount: 136

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 49 PacketCount: 24

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 80 PacketCount: 40196712

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 130 PacketCount: 44383869

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 16368 PacketCount: 1899438154

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 16384 PacketCount: 8531106

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 16416 PacketCount: 33274571

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 16432 PacketCount: 32117292

Jun 18 13:32:03: %C4K_HWACLMAN-4-WARNINGSTRING: Entry: 32752 PacketCount: 1899444422



As you can see from the timestamp, I'm getting these quite frequently. I don't have any outbound acl's applied anywhere so I;m confused about the warning message.


Thanks in advance,


--Brandon


Correct Answer by Mohamad Qayoom about 7 years 9 months ago

I found this:


2. %C4K_PKTPROCESSING-4-ERRORPACKET: [char]

This message indicates that the software is unable to process a packet so the packet has been forwarded to the CPU instead. Because this event is unexpected, the packet is then dropped. This error indicates that the packet cannot be handled by the TCAM hardware, so the most likely cause is a hardware failure in the supervisor engine.


Recommended Action: Replace the supervisor engine.



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Mohamad Qayoom Thu, 06/18/2009 - 09:55
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What IOS version are you running?

Thanks,

Mohamad

branfarm1 Thu, 06/18/2009 - 10:05
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No -- this particular switch has been running with it's current configuration for quite some time.

Mohamad Qayoom Thu, 06/18/2009 - 10:08
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The supervisor engine might have failed. I would open a Cisco TAC case and see if they want to replace the supervisor.

branfarm1 Thu, 06/18/2009 - 10:15
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If the supervisor failed, would I still be able to pass traffic through it? This particular switch handles a lot of multicast traffic and I haven't seen any problems with the multicast traffic, just the errors in the log.

Correct Answer
Mohamad Qayoom Thu, 06/18/2009 - 10:20
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I found this:


2. %C4K_PKTPROCESSING-4-ERRORPACKET: [char]

This message indicates that the software is unable to process a packet so the packet has been forwarded to the CPU instead. Because this event is unexpected, the packet is then dropped. This error indicates that the packet cannot be handled by the TCAM hardware, so the most likely cause is a hardware failure in the supervisor engine.


Recommended Action: Replace the supervisor engine.



cisco_lad2004 Thu, 06/18/2009 - 13:30
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as a mater of interest, was the CPU hitting the roof during this error ?


TIA


Sam

branfarm1 Thu, 06/18/2009 - 14:05
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Not as far as I can tell... the 5/1/5 minute CPU stats were all low. I've attached the output to 'show proc cpu history'


Leo Laohoo Thu, 06/18/2009 - 15:28
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Don't reboot the card or you'll loose it.

branfarm1 Thu, 06/18/2009 - 15:37
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Whoa! Can you elaborate on that? Did you experience a similar issue, with disastrous results?

Leo Laohoo Thu, 06/18/2009 - 16:48
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My apologies, Brandon. What I meant was with this error message, RMA is the way to go. But you might ask, if the sup card has failed, how come it's still operational. It will fail until you reload the supervisor engine.


Hope this helps.



branfarm1 Thu, 06/18/2009 - 16:51
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Thanks for the clarification. I was worried that it might not even survive to the weekend. I've already got a new card on the way.

Leo Laohoo Thu, 06/18/2009 - 17:41
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Did you experience a similar issue, with disastrous results?


Unfortunately, I had a X4013 spitting out different errors. Being a noob with Cisco gears, I didn't bother to check online. The Design Engineer went, "It's ok. Let's reboot the darn thing and see if the errors go away."


Let's just say that errors DID go away ... and the X4013 went along too.

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