RE: Neighbour table overflow

["Thomas Dukes" <tdukes@xxxxxxxxx>]

 

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From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of chloe K
Sent: Thursday, November 27, 2008 9:10 PM
To: CentOS mailing list
Subject: Re: Neighbour table overflow

what is your netmask? 

 

eth0 = 255.255.240.0

eth1 = 255.255.255.0

lo = 255.0.0.0

 

These don't look right except for eth1.  I have made no changes to these in about 4 years.

 

Thanks 

Thomas Dukes <tdukes@xxxxxxxxx> wrote:

> Just 
>   started getting this. I tried the following by adding it to 
>   my
> etc/sysctl.conf:
>
> net.ipv4.neigh.default.gc_thresh1 = 
>   4096
> net.ipv4.neigh.default.gc_thresh2 = 
>   8192
> net.ipv4.neigh.default.gc_thresh3 = 
>   8192
> net.ipv4.neigh.default.base_reachable_time = 
>   86400
> net.ipv4.neigh.default.gc_stale_time = 86400
>
> That pretty much 
>   locked things up. 
>
> Then I tried another googled solution:
>
> echo 
>   256 > /proc/sys/net/ipv4/neigh/default/gc_thresh1
>
> echo 512 > 
>   /proc/sys/net/ipv4/neigh/default/gc_thresh2
>
> echo 1024 > 
>   /proc/sys/net/ipv4/neigh/default/gc_thresh3
>
> And adding it also to 
>   etc/sysctl.conf:
>
> net.ipv4.neigh.default.gc_thresh1 = 
>   256
> net.ipv4.neigh.default.gc_thresh2 = 
>   512
> net.ipv4.neigh.default.gc_thresh3 = 1024
>
> Still not 
>   working.
>
> Any 
>   ideas?
>
> TIA
>
>
> _______________________________________________
> CentOS 
>   mailing 
>   list
> CentOS@xxxxxxxxxx
> http://lists.centos.org/mailman/listinfo/centos

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