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

From: jamal <[email-masked]>
Date: Thu, 03 May 2007 20:01:38 -0400

On Thu, 2007-03-05 at 14:38 -0700, Stephen Hemminger wrote:

> What kernel version?  Are you on a recent 2.6 kernel or stuck on some 
> old "vendor stable" 2.4 kernel?

VendorStable(tm)?;->

Sounds to me like an ARP gc challenge to me.
If it is, it would help incrementing the values in  
/proc/sys/net/ipv4/neigh/default/gc_thresh*

Try multiplying by some factor like 5 to see what happens i.e
---
hadi@lilsol:~$ cat /proc/sys/net/ipv4/neigh/default/gc_thresh1
128
---

Make that 640 and repeat multiplying by 5 all the other thresholds

cheers,
jamal

PS:- As usual i took lkml off the list