Cannot change identity type on 3750 switch in CiscoWorks

Unanswered Question
Nov 7th, 2007

have been trying with little success to reset the switch identity type in CiscoWorks from a "Cisco 3750 Stack" to a "Cisco 3750-24ts". Every time it is modified, after a few seconds the type switches back to the "stack" type. I have even tried removing the device(s) and re-adding them to CW but the same thing occurs. The unit is in fact not a stack but a single switch unit. Is this behavior being caused from the unit's IOS? ((C3750-IPBASE-M), Version 12.2(25)SEB1) or is there a configuration item that I have missed that should allow it to appear as a single unit to CW?

I have this problem too.
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Joe Clarke Wed, 11/07/2007 - 11:29

You can't do this. The device's sysObjectID dictates the device type. Changing it will not work as that will put the device in a conflicting state. For the 3750s, you can tell the device to use a different sysObjectID (but this is not recommended). To do that, use the command:

no snmp-server sysobjectid type stack-oid

Then you need to reload the switch.

apais Wed, 11/07/2007 - 11:40

So, even the single switch units will report as being a 3750 stack instead of the specific model that the individula switch is?

Joe Clarke Wed, 11/07/2007 - 11:42

Yes, and this is really what LMS expects. Little to no testing was done with the switches using their individual sOIDs.

apais Wed, 11/07/2007 - 11:47

Ok, good to know..I ran into this when one of my folks was trying to update code on a single unit and CW kept complaining that we needed a "tar" file which is what the stacks used versus the plain .bin image.


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