From: Stephen Hemminger <[email protected]>
Date: Tue, 31 Oct 2006 10:22:22 -0800
> On Tue, 31 Oct 2006 01:31:54 -0800 (PST)
> David Miller <[email protected]> wrote:
>
> > From: Peter Hicks <[email protected]>
> > Date: Tue, 31 Oct 2006 09:25:50 +0000
> >
> > [ Discussion belongs on [email protected], added to CC: ]
> >
> > > I have a dual 3GHz Xeon machine with a 2.4.21 kernel and thousands (15k+) of
> > > ipip tunnel interfaces. These are being used to tunnel traffic from remote
> > > routers, over a private network, and handed off to a third party.
> > ...
> > > Is it possible to speed up creation of the interfaces? Currently it takes
> > > around 24 hours. Is there are more efficient way to handle a very large
> > > number of IP-IP tunnels? Would upgrading to a 2.6 kernel be of use?
> >
>
>
> 2.4 has a several N^2 searches for interfaces (and is in deep freeze by now).
> 2.6 had several changes to handle 1000's of interfaces.
Oops I didn't notice this was with 2.4.x. Indeed, 2.4.x definitely
cannot handle large numbers of networking interfaces at all without
major surgery. 2.6.x should handle this significantly better.
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