Re: arp timeout problem

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In article <200207162123.34323.mstagarescu@telogy.com> you wrote:
> The Linux router performs ok till about few seconds and then fails very
> badly.

Besides the normal cache Timeout there are multiple strategies to detect
dead neighbours, for example for fall back gateways and quicker usermode
notification. 

It might help to set gc_stale_time higher, set locktime higher, 
or set ucast_solicit and mcast_solicit to 0.

2ecki@calista:/proc/sys/net/ipv4/neigh/eth0> egrep . *
anycast_delay:100
app_solicit:0
base_reachable_time:30
delay_first_probe_time:5
gc_stale_time:60
locktime:100
mcast_solicit:3
proxy_delay:80
proxy_qlen:64
retrans_time:100
ucast_solicit:3
unres_qlen:3

See for example
http://www.bb-zone.com/zope/bbzone/docs/slgfg/part2/cha04/sec08

Greetings
Bernd
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