[VOIPSEC] 4G Issue Map: signaling complexity

Brian Rosen br at brianrosen.net
Thu Aug 24 20:30:35 CDT 2006


Quote from ROHC WG session at IETF 56.  This is 2003

  Mark West gave a report from the first SigComp interoperability 
  testing, conducted at SIPit. The point was primarily to test SigComp, with
or 
  without SIP, trying to verify that all decompressor/UDVM endpoints behave 
  consistently. Six implementations were present, which was more than 
  expected, and the overall result was good, things mainly worked. 

This is the FIRST interop report.  6 implementations, and they mostly
worked.  SIGCOMP has been tested at SipIts since then.  They continue to get
good results.

So, it may look complex, but it's considered straightforward to be able to
write an interoperable implementation.  I've seen numbers on compute load.
It's about where they expected it to be.

Also, compression results are excellent.  It works.

Brian


> -----Original Message-----
> From: Geoff Devine [mailto:gdevine at cedarpointcom.com]
> Sent: Thursday, August 24, 2006 7:14 PM
> To: Brian Rosen; bill at flanagan-consulting.com
> Cc: Voipsec at voipsa.org
> Subject: RE: [VOIPSEC] 4G Issue Map: signaling complexity
> 
> Brian Rosen wrote:
> >Then, you can compress SIP quite easily.  The wireless guys do that.
> 
> Have you even read the SIGCOMP RFC?
> 
> "Easily" isn´t what jumps into my mind when I think about that mess.  It´s
> frightening when you think that every 3GPP client and P-CSCF have to
> implement to that spec.
> 
> Geoff





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