Re: [Mobopts] Same MPA server for 2 access networks
Carlos Rodrigues <cmjr@iol.pt> Mon, 20 April 2009 18:07 UTC
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Date: Mon, 20 Apr 2009 19:08:06 +0100
From: Carlos Rodrigues <cmjr@iol.pt>
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Cc: mobopts@irtf.org
Subject: Re: [Mobopts] Same MPA server for 2 access networks
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My question is more about a interworking scenario, more specifically inter-technology / intra-domain handover. Like a 3G-Wifi interworking scenario... we need have these agents in each access network but we can have a centralized MPA server, right? Carlos Rodrigues ----- Original Message ----- From: "Ashutosh Dutta" <adutta@research.telcordia.com> To: "Carlos Rodrigues" <cmjr@iol.pt> Cc: <mobopts@irtf.org> Sent: Monday, April 20, 2009 6:52 PM Subject: Re: [Mobopts] Same MPA server for 2 access networks > Carlos, > As I just replied to your personal email to me, you can have > an AA (Authentication Agent) and CA (Configuration Agent) that are > two logical components of an MPA server in the core of the IMS > network. These two functions of course can coexist on the same > physical box if that is what you are asking for. > > Thanks > Ashutosh > > Carlos Rodrigues wrote: >> These agents need to stay with access network but I can have a >> centralized MPA server in the edge of IMS core, no? >> >> It is like DNS... we don't have several DNS servers to access to >> the Internet. It is done relay... >> >> Cheers, >> Carlos Rodrigues (Computer Science BSc student) >> ESTG - IPL >> Leiria, Portugal >> >> ----- Original Message ----- >> From: "Ashutosh Dutta" <adutta@research.telcordia.com> >> To: "Carlos Rodrigues" <cmjr@iol.pt> >> Cc: <mobopts@irtf.org> >> Sent: Monday, April 06, 2009 7:55 PM >> Subject: Re: [Mobopts] Same MPA server for 2 access networks >> >> >>> Carlos, >>> Let me repeat some of what I have said earlier to you. >>> MPA server has several logical components, such as Authentication >>> Agent, Configuration Agent, Buffering Agent, Tunneling agent. Some >>> of these components could be aggregated for each access network, >>> such as Authentication Agent, and Configuration Agent. However, >>> part of Configuration Agent needs to stay with each access network >>> (e.g., DHCP relay). Buffering Agent and Tunneling Agent usually >>> stay at the edges with each access network. >>> >>> Thus, it is a design decision as to how you want to split the >>> functionality of the MPA server. >>> >>> Thanks >>> Ashutosh >>> >>> >>> Carlos Rodrigues wrote: >>>> Hi! >>>> >>>> I have question about the number of MPA servers necessary in a >>>> interworking scenario. >>>> If I have a scenario with 2 access networks (with different >>>> technologies), will need two CA, two AA and two tunneling agents >>>> and buffering agents if perform handover from both ways (A to B >>>> and B to A), right? >>>> >>>> First, I'm trying understand why (can give some tips?); >>>> Second, it's not possible aggregate these 2 MPA server in a >>>> single entity? In a intra domain scenario makes sense. >>>> >>>> All help or support will be very helpful. >>>> >>>> Cheers, >>>> Carlos Rodrigues (Computer Science BSc student) >>>> ESTG - IPL >>>> Leiria, Portugal >>>> >>>> ________________________________________________________________________________ Descubra as Soluções de Financiamento >>>> Cetelem. >>>> Saiba mais em: http://www.iol.pt/correio/rodape.php?dst=0901272 >>>> _______________________________________________ >>>> Mobopts mailing list >>>> Mobopts@irtf.org >>>> http://www.irtf.org/mailman/listinfo/mobopts >>> >> >> ________________________________________________________________________________ ANTECIPE A DEVOLUÇÃO DO SEU IRS e receba já o seu >> dinheiro... >> I.R.Yes! da Capital Mais >> http://www.iol.pt/correio/rodape.php?dst=0803281 >> _______________________________________________ >> Mobopts mailing list >> Mobopts@irtf.org >> http://www.irtf.org/mailman/listinfo/mobopts > ________________________________________________________________________________ Financiamentos até €50.000. Simule já! Saiba mais em: http://www.iol.pt/correio/rodape.php?dst=0901273
- [Mobopts] Same MPA server for 2 access networks Carlos Rodrigues
- Re: [Mobopts] Same MPA server for 2 access networ… Ashutosh Dutta
- Re: [Mobopts] Same MPA server for 2 access networ… Carlos Rodrigues
- Re: [Mobopts] Same MPA server for 2 access networ… Ashutosh Dutta
- Re: [Mobopts] Same MPA server for 2 access networ… Carlos Rodrigues
- Re: [Mobopts] Same MPA server for 2 access networ… Yoshihiro Ohba
- Re: [Mobopts] Same MPA server for 2 access networ… Carlos Rodrigues
- Re: [Mobopts] Same MPA server for 2 access networ… Yoshihiro Ohba