Re: [Seamoby] Defining Paging Area
"James Kempf" <kempf@docomolabs-usa.com> Wed, 19 December 2001 18:00 UTC
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From: James Kempf <kempf@docomolabs-usa.com>
To: Pars MUTAF <pars.mutaf@inrialpes.fr>
Cc: Kar Ann Chew <k.chew@eim.surrey.ac.uk>, seamoby@ietf.org
References: <Pine.SOL.4.43.0112181555170.5355-100000@haskins.ee.surrey.ac.uk> <00af01c187eb$cac66af0$7e6015ac@T23KEMPF> <3C20A42F.1002FBC1@inrialpes.fr>
Subject: Re: [Seamoby] Defining Paging Area
Date: Wed, 19 Dec 2001 09:33:27 -0800
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Pars, > > One of the major advantages of IP paging over strictly L2 paging is the > > ability to do dynamic paging area configuration. > > So, if IP paging becomes a real success, this may have a major > influence on the way the L2 engineers and cellular operators think? > I mean, in this case L2 paging areas may disappear in the future? > (the role of L2 being dormant mode support in a given subnet). > It is hard to tell, of course, but I think there are reasons for having L2 paging support that are independent of static paging areas. Having a separate paging channel that can contact the mobile when it is in dormant mode and a paging area beacon channel may result in better power efficiency on the mobile, for example. What I hope will disappear are the static Location Area Identifiers that are tied to GGSN/PDSN, i.e., to a particular subnet. These are essentially data paging areas in the 3G standards. Static subnet to paging area mappings tend to constrain network topology, since they push for larger leaf subnets. Particularly with micro- or picocells, flexibility in network design might lead to better routing efficiency. There is also the issue of multiple wireless interfaces on a single device. What if there are 5 wireless interfaces on a device? Confining the details of handling 5 different L2 paging protocols to the last hop and letting IP handle the details in the network seems like the correct abstraction level, and is the traditional role IP has played in hiding the details of L2. jak _______________________________________________ Seamoby mailing list Seamoby@ietf.org https://www1.ietf.org/mailman/listinfo/seamoby
- [Seamoby] Defining Paging Area Kar Ann Chew
- Re: [Seamoby] Defining Paging Area Pars MUTAF
- RE: [Seamoby] Defining Paging Area Andrew T. Campbell
- Re: [Seamoby] Defining Paging Area Marco Liebsch
- Re: [Seamoby] Defining Paging Area Karann Chew
- Re: [Seamoby] Defining Paging Area James Kempf
- Re: [Seamoby] Defining Paging Area Behcet Sarikaya
- Re: [Seamoby] Defining Paging Area Pars MUTAF
- Re: [Seamoby] Defining Paging Area Pars MUTAF
- Re: [Seamoby] Defining Paging Area James Kempf
- Re: [Seamoby] Defining Paging Area Claude Castelluccia
- Re: [Seamoby] Defining Paging Area Claude Castelluccia
- Re: [Seamoby] Defining Paging Area James Kempf