netdev - Re: increase the number of routing tables

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Message-ID: <1327927464.2288.37.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC>
Date:	Mon, 30 Jan 2012 13:44:24 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Thomas Graf <tgraf@...radead.org>
Cc:	Simon Chen <simonchennj@...il.com>, netdev@...r.kernel.org
Subject: Re: increase the number of routing tables

Le lundi 30 janvier 2012 à 07:25 -0500, Thomas Graf a écrit :

> I've run into these scalability issues a while ago which is
> why I've added the goto action allowing to build a tree like
> structures:
> 
> 0:	from all lookup local 
> 10:     from eth0 goto 4000
> [possibly thousands of rules]
> 3999:   from all goto 32763
> 4000:   from all to 1.1.1.1 lookup foo
> [...]
> 32763:	from all to 1.2.3.7 lookup test3000 
> 32766:	from all lookup main 
> 32767:	from all lookup default 

Indeed, but make sure to use a recent kernel (3.2) so that Yan Zheng and
Gao Feng fixes are in :)

commit afaef734e5f0 (fib_rules: fix unresolved_rules counting)
commit 561dac2d410f (fib:fix BUG_ON in fib_nl_newrule when add new fib
rule)

commit ebb9fed2def (fib: fix fib_nl_newrule())


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