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

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Message-ID: <Pine.LNX.4.61.0705032255080.18504@yvahk01.tjqt.qr>
Date:	Thu, 3 May 2007 22:55:49 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Willy Tarreau <w@....eu>
cc:	Øyvind Vågen Jægtnes <lorrides@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Routing 600+ vlan's via linux problems (looks like arp problems)


On May 3 2007 22:53, Willy Tarreau wrote:
>> For the rest all we see in the arp cache is (incomplete)
>
>I suspect that your arp cache is full (128 entries by default).
>Check /proc/sys/net/ipv4/neigh/gc_thresh1 (128 for me). You can
>set it as high as gc_thresh2 (512 for me), and I don't know what
>happens above.

Above, you will perhaps need the not-so-elegant userspace arpd :-/


Jan
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