"No Response SNMP" message while discovering a cisco switch with SNMPv3 enabled.
SCOM2012
Some of the same model/OS switches with the same configuration were discovered but others sowing the above message. No configuration difference at all.
Any suggestions ?
I thought ICMP & SNMP access method required both to successful else it will fail? Above you state 'as long as one of those is available we consider the device up'
When Installing OpsMgr 2012 R2 on Server 2012 R2, firewall rules necessary for network monitoring are created but left disabled. I enabled them and the discovery worked successfully. The firewall rule names are Operations Manager SNMP Response, Operations Manager SNMP Trap Listener & Operations Manager Ping Response
When I created my initial network discovery I got one instance of each node. Now this morning, I am seeing a second instance of a few nodes. All the information about the node is the same except the System Name/Device Key fields which corresponds to a MAC address on the device. When the device was initially discovered, the System Name/Device Key was the MAC corresponding to the IP for the VLAN interface I used in the discovery. The new instance of the device has a MAC corresponding to the Bridge ID address. I'm not sure which one to delete or how to handle the duplication otherwise.
I opened a Microsoft case and got a fix for the duplicate device issue. It is a private fix so I suggest opening another ticket and requesting the fix. The issue is resolved with an updated version of he "ic.iftable.asl" file
