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

["Hui Deng" <[e-mail]>]

I guess that NATPT and B2BUA are different story?
What about ur opinion about performance of deprecated NAT-PT regarding to
SIP-SDP-RTP?

Thanks

-Hui

> -----Original Message-----
> From: [e-mail]
> [mailto:[e-mail]] On Behalf Of Mosley, Leonard
> Sent: Wednesday, September 22, 2010 11:47 PM
> To: Cameron Byrne; [e-mail]; [e-mail];
> [e-mail]
> Subject: Re: [v4tov6transition] Any Experience with Using Behave's
> StatelessNAT-PT for IMS-SIP VoIP Application...
> 
> 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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