I have strange issue with HP ProCurve J8692A 3500yl-24G. If I display MACs on port I see it:

3500(config)# sh mac 10 | inc 5cf3fc-a53456

But if I try to find where is this MAC then I have no luck:

(config)# sh mac 5cf3fc-a53456
 Status and Counters - Address Table - 5cf3fc-a53456 
MAC address 5cf3fc-a53456 not found.

Any ideas where can be the problem?

Edited: I test another MAC:

3500# sh mac 003048-33d8f6

 Status and Counters - Address Table - 003048-33d8f6

MAC address 003048-33d8f6 not found.
3500# sh mac | inc 003048-33d8f6
  003048-33d8f6 5

so this not looks as MAC, config mode or port issue. Also:

MAC addr count#                1241       1257       1248       1449       1391
                     Low          *          *       1229       1222       1219
                    High          *          *       1266       1897       1897

and this switch have much larger (AFAIR 64k) MAC address table size, so it not looks like full MAC address table issue.

PS. It run on bit old K.14.41 software. I check Release notes for K.14 series, but I don't see similar problem resolved in any next release.

  • Well the OID suggests its an IBM device. The documentation suggests you are supposed to see the port number that this address is learned on. While I doubt this can be a switch system address, perhaps including the entire output of the sho mac 10, also just for grins try the commands not in config mode
    – fredpbaker
    Oct 11, 2013 at 22:13
  • @fredpbaker I edited post and added more information. I not post full output of sh mac 10 because it's rather long - I have another switch on this port :)
    – dsznajder
    Oct 12, 2013 at 8:10
  • So what I see is that a normal mac address entry as a port number in it per the doc. The IBM address does not. The sho mac <address> command seems to never work. This smells like code defects
    – fredpbaker
    Oct 12, 2013 at 17:07
  • 1
    @fredpbaker, the IBM address doesn't show a port number because that is a "sh mac <interface> | inc <MAC>" whereas the second is from a "show mac | inc <MAC>". Since the first includes the interface with the input, there is no reason to include it in the output.
    – YLearn
    Oct 14, 2013 at 21:48

1 Answer 1


You need to upgrade to the K.15 series. I also have a 3500yl-48G, and prior to K.15 I definitely saw bugs.

sh mac-a never worked properly for me in K.14, but does in K.15.

HP-3500yl-48G# sh mac-address 46           

 Status and Counters - Port Address Table - 46

  MAC Address   VLANs       
  ------------- ------------
  00005e-00010a 100         
  00005e-000201 100         
  00005e-000202 100         
  002283-f8dff0 100         
  f8c001-c56208 100         

HP-3500yl-48G# sh mac-address 46 |inc 00005e-00010a
 00005e-00010a 100         
HP-3500yl-48G# sh mac-address 00005e-00010a | inc 46
 46       100 

HP-3500yl-48G# sh version 
Image stamp:    /ws/swbuildm/rel_knoxville_qaoff/code/build/btm(swbuildm_rel_knoxville_qaoff_rel_knoxville)
                Feb 28 2013 11:40:02
Boot Image:     Secondary
  • 1
    This is a borderline "+1" comment, but I want to reinforce robbat2's comment about K.14.* K.14.* was really buggy in a lot of ways. You will certainly do yourself numerous favors by getting off of it and go ahead and getting up to K.15.* Not that K.15.* is perfect by any means, but its tremendously better. Dec 10, 2013 at 14:35

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