You are analyzing your firewall logs, /var/log/messages, and repeatedly see the following kernel
message: ‘kernel: neighbor table overflow’ What is the cause?
A.
OSPF neighbor down
B.
Nothing, you can disconsider it.
C.
Arp cache overflow
D.
Cluster member table overflow
Symptoms
‘kernel: neighbour table overflow’ message appears repeatedly in /var/log/messages files.
Cause
ARP cache is overflowing.
Most possible reason – too much traffic on the network (generated by some application, by some hosts, or by related factors).
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