IEEE 802.11e specifies four strict levels of priority as well, as these
are validated by the Wi-Fi Alliance WMM compliance suite. The IEEE
standard tells how to map these four levels onto the 802.1q priorities
as well. Similar systems exist for MoCA and Home Plug. So my answer
would be yeah, let the user have control over the priority of the
transmissions he sends from his home or office LAN to his ISP, and let
the ISP handle them as well as they're able. Diffserv can carry these
markings as far as it goes, and with the right kind of peering or
transit agreements, that might be a very long way.
RB
Mikael Abrahamsson wrote:
I'd say that in the long run (it was like this when I deployed
ethernet dslams 6+ years ago) we're headed for the same kind of
behaviour in the ISP end as ETTH switches has today, ie few
milliseconds of buffers and 4 strict prio queues (think ETTH but with
VDSL2 as PHY instead of 100BASE-T).
So if the ISP->CPE path behaves like this, would it perhaps be nice to
have the CPE->ISP direction behave the same way?
--
Richard Bennett
Research Fellow
Information Technology and Innovation Foundation
Washington, DC
