VoIP QOS best practices

Mon Feb 10 16:52:16 UTC 2003

Jason,

My strategy would be to use the same carrier at point A and point B and
purchase some kind of high-priority MPLS switching config between the
two.  I believe Global Crossing offers something like this where they
differentiate between the proletarian traffic and the uber-business
traffic.

The other thing to keep in mind is that QoS only comes into play when
you saturate your links.  

Regards,
Christopher J. Wolff, VP, CIO
Broadband Laboratories, Inc.
http://www.bblabs.com

-----Original Message-----
From: owner-nanog at merit.edu [mailto:owner-nanog at merit.edu] On Behalf Of
Jason Lixfeld
Sent: Monday, February 10, 2003 9:47 AM
To: nanog at nanog.org
Subject: VoIP QOS best practices

Looking for some links to case studies or other documentation which 
describe implementing VoIP between sites which do not have point to 
point links.  From what I understand, you can't enforce end-to-end QoS 
on a public network, nor over tunnels.  I'm wondering if my basic 
understanding of this is flawed and in the case that it's not, how is 
this dealt with if the ISPs of said sites don't have any QoS policies?

-jL