I'm proud to announce that I did not understand one word of this. Well, to be
fair, I know what an accordion is but I'd rather not see one reshaped before
the packet ship reaches port.
Who are they and how are you screwing me?
Andrew Fildes
afildes@xxxxxxxxxxxxx
On 23/12/2011, at 10:42 PM, David Thatcher wrote:
> A large Aussie telco does exactly this on business grade "private IP"
> networks. The hard ingress rate-limit causes random packet discards
> (instead of nice sensible queue tail drops) with the result that
> sustained TCP connections end up getting (on average) less than 10% of
> the bandwidth as the TCP window size "accordions" due the stupid packet
> loss. The workaround is to traffic shape on the customer equipment
> before the port, but this means the client needs to fork out for more
> gear. It's nice for our bottom line, but from a 'best practice'
> standpoint, it's utter rubbish.
--
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