Emulating ADSL bandwidth shaping
surfer at mauigateway.com
Tue May 4 16:00:00 CDT 2010
--- swmike at swm.pp.se wrote:
From: Mikael Abrahamsson <swmike at swm.pp.se>
On Tue, 4 May 2010, Scott Weeks wrote:
> "Interleaved" turned on to correct errors. This adds ~25msec between
> the CPE and the nearest router. Sometimes folks ask for it to be
> changed to "Fast". We explain that errors may cause resyncs to happen
> and then make the change if the customer still wants it. That takes the
: Never seen it cause resyncs, but that might happen, dunno.
It definitely causes the DSLAM port to resync sometimes.
: It is usually settable to 1,4,16 ms in each direction, so
: 25ms is not a "law of nature", it's just the default 16/4 ms
: downstream/upstream interleaving and then the added coding delay.
We have to set it high because of the OSP. It goes through jungles. Literally. ;-) Some areas get 25-30mph winds every day with 300-400 inches of rain a year.
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