RE: draft-ietf-mmusic-sip-session-timer-00.txt
Douglas Clowes <dclowes@ozemail.com.au> Wed, 17 February 1999 07:16 UTC
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Date: Wed, 17 Feb 1999 18:10:58 +1100
To: "Donovan, Steven R. (MCI)" <Steven.R.Donovan@mci.com>, Francois Menard Distribution List Management Account <fm-listproc@mediatrix.com>, "'confctrl@ISI.EDU'" <confctrl@ISI.EDU>
From: Douglas Clowes <dclowes@ozemail.com.au>
Subject: RE: draft-ietf-mmusic-sip-session-timer-00.txt
In-Reply-To: <CA6966C24AC6D111B5A100805FEAB7D857741B@nsrip00208.mcit.com >
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At 07:40 1999-02-16 -0700, Donovan, Steven R. (MCI) wrote: >>>> <excerpt> <fontfamily><param>Fixedsys</param><color><param>0000,0000,ffff</param><smaller>...<<snip></smaller></color></fontfamily> <smaller>IRR is being used in H.323 to determine if the endpoint is still alive, but</smaller> <smaller>the preference seems to be heading toward gatekeeper routed calls. Here,</smaller> <smaller>you have a TCP connection through the gatekeeper for session control, but</smaller> <smaller>media still goes direct.</smaller> <fontfamily><param>Fixedsys</param><color><param>0000,0000,ffff</param><smaller>Doesn't this have some real scaling and performance problems? I assume that this requires setting up a TCP connection per call attempt and limits the number of sessions that a single gatekeeper can handle to the number of simultaneous TCP connections that the gatekeeper can handle. </smaller></color></fontfamily> </excerpt><<<<<<<< Well, yes, if you want to state the obvious. Actually, from memory it's two (or more - I seldom get down to that level) but it begs the question of the role and scope of a gatekeeper. If you have one gatekeeper per eight line gateway, it's not a problem. If a gatekeeper's role is keeping the gate, and its scope is a single gateway or POP up to a few thousand lines, it's probably still not a problem. If, OTOH, you want it to be a network controller for a major telco ... different story. Regards, Douglas >>>> <excerpt> <smaller>>-=Francois=-</smaller> <smaller>>fmenard@mediatrix.com</smaller> <smaller>></smaller> <smaller>Douglas</smaller> </excerpt><<<<<<<<
- draft-ietf-mmusic-sip-session-timer-00.txt Donovan, Steven R. (MCI)
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Donovan, Steven R. (MCI)
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Jonathan Rosenberg
- RE: draft-ietf-mmusic-sip-session-timer-00.txt John Hearty
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Donovan, Steven R. (MCI)
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Douglas Clowes
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Francois Menard Distribution List Management Account
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Douglas Clowes
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Douglas Clowes
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Jonathan Rosenberg
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Henning Schulzrinne
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Francois Menard Distribution List Management Account
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Jonathan Rosenberg
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Vipin Palawat
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- RE: RE: draft-ietf-mmusic-sip-session-timer-00.txt Francois Menard
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Jonathan Rosenberg
- RE: RE: draft-ietf-mmusic-sip-session-timer-00.txt Sean Olson
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Donovan, Steven R. (MCI)
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Dean Willis
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Douglas Clowes
- RE: RE: draft-ietf-mmusic-sip-session-timer-00.txt Donovan, Steven R. (MCI)
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Donovan, Steven R. (MCI)
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Donovan, Steven R. (MCI)
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Dean Willis
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Jonathan Rosenberg
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Douglas Clowes
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Jerome Privat
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Patrice Calhoun
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Jonathan Rosenberg
- Re: draft-ietf-mmusic-sip-session-timer-00.txt John Hearty
- Re: draft-ietf-mmusic-sip-session-timer-00.txt John Hearty
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Lewis McCarthy
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Jonathan Rosenberg
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Dean Willis
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Jonathan Rosenberg
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Dean Willis
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Jonathan Rosenberg
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Aishling
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Henning Schulzrinne
- RE: draft-ietf-mmusic-sip-session-timer-00.txt Dean Willis
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Mark Handley
- Re: draft-ietf-mmusic-sip-session-timer-00.txt Henning Schulzrinne
- clients and servers Scott Petrack