Hi Greg,

We've got some with 12.2(46)SE and 12.2(52)SE. Nevertheless we had some similar issues until I patched twisted-snmp (contrib/patches). I'm not so sure if it still matters because a lot had been rewritten since then.

https://bugs.launchpad.net/nav/+bug/690723

milo

On Wed, 16 Nov 2011 09:20:55 -0600, Greg Cooper wrote:

Hi, All.

I'm looking for some input from anyone using NAV with Cisco 3750 switch stacks.  If you have a stack of 2 or more 3750's and all the L2/L3 interfaces are being properly pulled from it by NAV, then would you mind sharing what version of IOS you are using?

I think I may be running into an SNMP issue with the particular version of IOS I'm on.  I get timeouts when querying the 3750 via SNMP.  I can do an snmpwalk from the NAV server to the device, and it runs for a while, but it will sometimes time out.

Thanks!

Greg

On Wed, 16 Nov 2011 09:20:55 -0600 Greg Cooper gwc2004@gmail.com wrote:

I think I may be running into an SNMP issue with the particular version of IOS I'm on. I get timeouts when querying the 3750 via SNMP. I can do an snmpwalk from the NAV server to the device, and it runs for a while, but it will sometimes time out.

Could you please try replacing snmpwalk with snmpbulkwalk, adding the option "-Cr50" and see if the timeout problem gets worse/better?

Using bulkwalk with a max-repetitions value of 50 will mimic ipdevpoll's requests more closely. I've seen some devices slow to a crawl when asked to produce a large bulk response (something which would normally reduce lag in snmp operations).