 | | | Neighbour table overflow kernel msg in RH ES3 | Neighbour table overflow kernel msg in RH ES3 2004-02-19 - By M A Young
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On Thu, 19 Feb 2004, Rainer Traut wrote:
> I 'm seeing this on an intranet domino server
> around 8msgs so far.
>
> [root@(protected) root]# uname -a
> Linux notes4-ent 2.4.21-9.ELsmp #1 SMP Thu Jan 8 17:08:56 EST 2004 i686
> i686 i386 GNU/Linux
>
> Thought it was of a full arp cache or sth. as google suggested
> but that does not seem to be tha case:
>
> [root@(protected) root]# arp -a|wc -l
> 9
>
> Anything I should be concernd about?
There might also be a lot of entries in the rt_cache (see
/proc/net/rt_cache); we saw this on a host that was doing NAT for a
private network. You can make more space by increasing
/proc/sys/net/ipv4/neigh/default/gc_thresh3
Michael Young
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