[55719] in North American Network Operators' Group
RE: VoIP QOS best practices
daemon@ATHENA.MIT.EDU (Christopher J. Wolff)
Mon Feb 10 12:02:41 2003
From: "Christopher J. Wolff" <chris@bblabs.com>
To: "'Jason Lixfeld'" <jlixfeld@andromedas.com>
Cc: <nanog@nanog.org>
Date: Mon, 10 Feb 2003 10:01:06 -0700
In-Reply-To: <C8AE4F2B-3D18-11D7-B5C0-0030657C4176@andromedas.com>
Errors-To: owner-nanog-outgoing@merit.edu
Jason,
I believe Global Crossing supports those sites, keep in mind I don't
sell their product, but UUNET should as well.
Regards,
Christopher J. Wolff, VP, CIO
Broadband Laboratories, Inc.
http://www.bblabs.com
-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of
Jason Lixfeld
Sent: Monday, February 10, 2003 9:58 AM
To: Christopher J. Wolff
Cc: nanog@nanog.org
Subject: Re: VoIP QOS best practices
Providing your sites are local to the same ISP, that would be fine.
Worst case scenario and probably a more likely scenario in most cases
is that company A has a satellite office in Boston, one in Sydney and
one in Tokyo while their head office is in Toronto. Not a very wide
range of providers who can reach those areas, not to mention wether or
not they can deliver MPLS.
On Monday, February 10, 2003, at 11:52 AM, Christopher J. Wolff wrote:
> 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@merit.edu [mailto:owner-nanog@merit.edu] On Behalf
Of
> Jason Lixfeld
> Sent: Monday, February 10, 2003 9:47 AM
> To: nanog@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
>
