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

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Date:	Thu, 03 May 2007 20:01:38 -0400
From:	jamal <hadi@...erus.ca>
To:	Stephen Hemminger <shemminger@...ux-foundation.org>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	Øyvind Vågen Jægtnes <lorrides@...il.com>,
	netdev <netdev@...r.kernel.org>
Subject: Re: Routing 600+ vlan's via linux problems (looks like arp
	problems)

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@...sol:~$ 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

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