11-18-2009 07:32 AM
I am getting false node down alert since last few weeks.Customer receives the node down alert and check the device using ICMP ping and it is responding.
In some cases client were able to ping the devices from there end ,but I am not able to ping the device from management station it doesn't respond to ICMP.While in some cases it fails the trace route.
Could any budy please help me out ,why I am getting such a false event and also please let me know how can I solve the issue.
11-18-2009 01:54 PM
11-18-2009 08:00 PM
Thanks for reply.
Just one question,in which case NNM consider a node as a down,when not pinging the device.Or when not getting SNMP response.
Also is there is any way to check why there is routing issue with NNM.
11-19-2009 02:01 AM
if you are in complex network architecture maybe that NNM doesn't respond to icmp... try treceroute to see where the packet stop.
However NNM put node in down state only when icmp fails to respond and not when snmp service does not respond.
Think about layer 2 network device without snmp...
Simone Del Pinto