Smarts NPM: False OSPF neighbour down alarms. CLI commands show interfaces are up.
Article ID: 331671
Updated On:
Products
VMware Smart Assurance
Issue/Introduction
Symptoms:
False OSPF neighbour down alarms.
CLI commands show interfaces are up:
OSPF neighbor events are showing as a false down.
User has numerous false OSPF errors.
OSPF events intermittently show show false neighbor down alerts.
False OSPF neighbour down alarms.
CLI commands show interfaces are up:
OSPF neighbor events are showing as a false down.
User has numerous false OSPF errors.
OSPF events intermittently show show false neighbor down alerts.
Environment
VMware Smart Assurance - SMARTS
Cause
Incorrect information reported from the devices SNMPAgent.
Resolution
Verify information reported from SNMPAgent:
Run the following command to verify the information reported for the SNMPAgent:
./sm_snmpwalk -c <CommunityString> -o 1.3.6.1.2.1.14.7.1.12 <IPAddress>
Open the .mimic file and look for the relevant OID:
.1.3.6.1.2.1.14.7.1.12.<IPAddress>.0
which tells us the status OSPF niehbour relationship.
It may not say DOWN, but declares a invalid interface type - loopback instead of the actual interface.
FIX:
Deleting All gateway routers, and their corresponding events, and then rediscovering the gateway router solved this issue. Another more drastic fix would be to start the NPM domain with a fresh RPS.
Run the following command to verify the information reported for the SNMPAgent:
./sm_snmpwalk -c <CommunityString> -o 1.3.6.1.2.1.14.7.1.12 <IPAddress>
Open the .mimic file and look for the relevant OID:
.1.3.6.1.2.1.14.7.1.12.<IPAddress>.0
which tells us the status OSPF niehbour relationship.
It may not say DOWN, but declares a invalid interface type - loopback instead of the actual interface.
FIX:
Deleting All gateway routers, and their corresponding events, and then rediscovering the gateway router solved this issue. Another more drastic fix would be to start the NPM domain with a fresh RPS.
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