Re: [v4tov6transition] Any Experience with Using Behave's Stateless NAT-PT for IMS-SIP VoIP Application...

["Mosley, Leonard" <[e-mail]>]

Yes sir Cameron, hence, my queries below. Most of the SIP-SDP-RTPv4 to SIP-SDP-RTPv6 lab evals I've seen have utilized the deprecated NAT-PT, so I was curious about anyone's experience yet with the Behave group's "newer" algorithms (yes, normally implemented in an SBC for RTP/UDP/IP-version translation) and its interaction with an IMS network (VoIP network) requesting translation services from it.

Tks,

Len...

-----Original Message-----
From: Cameron Byrne [mailto:[e-mail]]
Sent: Wednesday, September 22, 2010 11:27 AM
To: Mosley, Leonard; [e-mail]; [e-mail]; [e-mail]
Subject: Re: [v4tov6transition] Any Experience with Using Behave's Stateless NAT-PT for IMS-SIP VoIP Application...

When you must translate between protocols, most service providers use
sip b2bua aka an sbc.

Cameron

On 9/22/10, Mosley, Leonard <[e-mail]> wrote:
> Greetings Fred et al, I had a couple of inquiries concerning use of the
> Behave WG NAT-PT algorithms:
>
>
> 1)      I was wondering what vendors currently are implementing the Behave
> WG's NAT-PT algorithms?
>
> 2)      Has anyone had any experience testing or implementing the stateless
> algorithm for use cases involving IMS SIPv4 VoIP clients calling SIPv6
> clients and vice versa.  Such use cases assume an architecture where there
> is a co-existence period in the network consisting of both "legacy" SIPv4
> clients and "newer" SIPv6 (dual-stack and/or v6-only) clients.
>
> 3)      I'm curious about RTP performance under moderate to heavy call loads
> as well as NAT-PT interaction with IMS-ALG.  If anyone can share at a
> high-level that would be great.
>
> Tks,
>
> Len Mosley
> Time Warner Cable
>
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