Observations of an Internet Middleman (Level3) (was: RIP

Matthew Petach mpetach at netflight.com
Fri May 16 19:21:57 UTC 2014


On Fri, May 16, 2014 at 12:14 PM, James R Cutler <
james.cutler at consultant.com> wrote:

>
> All this talk about symmetry and asymmetry is interesting.
>
> Has anyone actually quantified how much congestion is due to buffer bloat
> which is, in turn, exacerbated by asymmetric connections?
>
>
> James R. Cutler
> James.cutler at consultant.com
> PGP keys at http://pgp.mit.edu
>

I think you might have the cart before the horse.

If there's no congestion on a peering link,
buffering doesn't come into play, at least
not within the transport infrastructure.

We're not talking congestion on the last mile
side, we're looking at congestion on the
interconnect links between networks,
typically 10G or 100G ports.  Unless
you're running those links near or at
capacity, buffering should be a complete
non-issue.  And if you're running those
links at capacity, then the congestion
is due to too much traffic, period, not
to the size of buffers involved on either
side of the link.  ^_^;

Thanks!

Matt


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