Quite agree:
I'll agree that rather than concentrating on the latest and greatest QoS "if everyone adopted <foo> we'd be fine" strategies (that sound identical to the Promise of an ATM World), we should be concentrating on things that have been demonstrated to improve quality (CoS-based ^^^^^^^^^^ queueing, modern queue management, intra-domain CoS-tags, replacement ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
of UDP by TCP wherever possible, content replication/caching, etc). Except this -:) ^^^^^^^^^^^^^ But this !
The issue of adapting your CoS-queues -across the domain- to demand seems to me the sharp edge of real VoIP deployment. Btw, RSVP just do it. But if have not your incoming links overloaded, simple fixed queue management (controlled by precedences and tags) is enougph and can be realised at the inter-ISP level.
On the other hand, I can't believe someone can run RSVP at the inter-ISP level.
Cheers,
Joe
-- Disclaimer: "I'm the only one foolish enough to claim these opinions." Joe Provo, Manager 508.229.8400 x 3006 Interconnections and Technology Evaluation Fax 508.229.2375 Technology & Network Development, RCN <joe.provo@rcn.com>
Aleksei Roudnev, Network Operations Center, Relcom, Moscow (+7 095) 194-19-95 (Network Operations Center Hot Line),(+7 095) 230-41-41, N 13729 (pager) (+7 095) 196-72-12 (Support), (+7 095) 194-33-28 (Fax)