[LARTC] Multihome load balancing - kernel vs netfilter

[Peter Rabbitson <rabbit@rabbit.us>]

Hi,
I have searched the archives on the topic, and it seems that the list
gurus favor load balancing to be done in the kernel as opposed to other
means. I have been using a home-grown approach, which splits traffic
based on `-m statistic --mode random --probability X`, then CONNMARKs
the individual connections and the kernel happily routes them. I
understand that for > 2 links it will become impractical to calculate a
correct X. But if we only have 2 gateways to the internet - are there
any advantages in letting the kernel multipath scheduler do the
balancing (with all the downsides of route caching), as opposed to the
pure random approach described above?

Thanks

Peter
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