Re: Routing 600+ vlan's via linux problems (looks like arp problems)

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Øyvind Vågen Jægtnes <[email protected]> wrote:
>
>Yes, i was suspecting that the arp cache got full, but i will try
>increasing it :)
>Would there be any huge bugs if i change these lines in arp.c:
>
>        .gc_thresh1 =   128,
>        .gc_thresh2 =   512,
>
>to
>
>        .gc_thresh1 =   700,
>        .gc_thresh2 =   700,
>
>under the definition for struct arp_tbl?

Why not simply update the /proc/sys values?
No need to recompile the kernel.....
We have this in the /etc/sysctl.conf for our firewall:

net/ipv4/neigh/default/gc_thresh1=32768
net/ipv4/neigh/default/gc_thresh2=65536
net/ipv4/neigh/default/gc_thresh3=262144
net/ipv4/route/gc_elasticity=8
net/ipv4/route/gc_interval=30
net/ipv4/route/gc_min_interval=2


Paul Slootman
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