On Thu, 2007-07-26 at 10:44 +1000, Visser, Martin wrote:
I think that the technology Gavin is thinking of is more about
economising on the content being sent rather than tweaking TCP
parameters.
The only thing I'd add is that link optimisation runs out of steam
at pretty low bandwidths, say >155Mbps. Also, it really hates some
traffic types, such as IPsec.
Oh, and they are evil. Because all middleboxes are evil :-)
I tend to agree with Glen, "middleboxes" are evil.
The Golden Age of Link Level Compression has been and gone (VF modem protocols like MNP and
friends).
As an industry we tend to look to higher raw bit rates when we need more speeds these days.
STM-1's are slow now, GE is the norm with a rapid move to 10GE in data centres and 40G in an
ISP's core.
If you have a WAN link any faster than 2Mb/s, you almost certainly have a SM Fibre Tail. Ask
you provider to upgrade you to a higher speed Metro Ethernet service (stay away from ATM!!)
:)
Cheers,
Barrie
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