[Cerowrt-devel] routers you can throw off the back of a truck

Michael Richardson mcr at sandelman.ca
Mon Jan 18 11:14:46 EST 2016

Jonathan Morton <chromatix99 at gmail.com> wrote:
> I haven’t yet found a robust way to automatically sense link capacity from
> the upstream side.  You’ll therefore need to set a conservative static
> value for the uplink capacity.

As the maintainer of a PPPoE concentrator, and operator of some networks,
I've been considering whether one can estimate the bandwidth using round
trip PPP IPCP keep alives.   Clearly, if both ends participate in time
stamping then it is much better, but I've been wondering if we can do some
incremental deployment on one side or the other.

Sadly, I mostly just think about this while cycling; I haven't written any
code yet.

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