> unless your metrics are very simplistic, you won't actually encounter
> equal-cost paths

Listen to the man.

But even if you happen to have equal cost paths, or design a suitable
heuristic for non-equal-cost multipath, it's not clear to me that ECMP is
beneficial.  ECMP might increase throughput, granted, but it is likely to
increase latency and packet loss.  I don't see many cases of intra-home
traffic that are likely to be limited by throughput, except backups.  And
who does backups in any case?

So I'd be very cautious about deploying ECMP without a clear understanding
of its performance implications in the particular case of the home -- does
it bring perceptible benefits to the users, which, at the end of the day,
is the only thing that really counts.  Which should of course not prevent
us from experimenting, quite the opposite.

-- Juliusz

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