RE: Neighbour table overflow

Linux Advanced Routing and Traffic Control

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> What is the cause for such a message while running kernel 2.6.1 on RH9 ?
> 
> Neighbour table overflow.
> NET: 282 messages suppressed.
> Neighbour table overflow.

You must tune /proc/sys/net/ipv4/conf/gc_thresh....

... something like:
echo "1024" > /proc/sys/net/ipv4/neigh/default/gc_thresh1
echo "4096" > /proc/sys/net/ipv4/neigh/default/gc_thresh2
echo "8192" > /proc/sys/net/ipv4/neigh/default/gc_thresh3

Arkadiusz Binder
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