Re: [Mobopts] Same MPA server for 2 access networks

Ashutosh Dutta <adutta@research.telcordia.com> Mon, 06 April 2009 18:54 UTC

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Date: Mon, 06 Apr 2009 14:55:56 -0400
From: Ashutosh Dutta <adutta@research.telcordia.com>
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To: Carlos Rodrigues <cmjr@iol.pt>
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Subject: Re: [Mobopts] Same MPA server for 2 access networks
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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
> 
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