netdev - Re: increase the number of routing tables

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Message-ID: <4F259D67.3070603@candelatech.com>
Date:	Sun, 29 Jan 2012 11:26:31 -0800
From:	Ben Greear <greearb@...delatech.com>
To:	Simon Chen <simonchennj@...il.com>
CC:	Eric Dumazet <eric.dumazet@...il.com>, netdev@...r.kernel.org
Subject: Re: increase the number of routing tables

On 01/28/2012 08:20 PM, Simon Chen wrote:
> Thanks...
>
> Here says 252 routing tables top... maybe that's too old:
> http://linux-ip.net/html/routing-tables.html
>
> I wonder if we can use a trie-tree for "ip rule" - linear evaluation
> does not sound too good. But I'll be using a ton of iptables rules as
> well, and I believe those are linear evaluation too :-(

At least some rules apply only to packets entering certain
interfaces.  It seems we could have per-interface rule collections
in those cases so that only a few rules would be searched each time.

What type of rules are you planning to use?

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com
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