Re: [Dime] Review of draft-tsou-dime-base-routing-ext-03.txt

[Tina TSOU <[e-mail]>]

Dear Glen,
My comments are below demarked with [Tina: ...].

B. R.
Tina
  ----- Original Message ----- 
  From: Glen Zorn 
  To: 'Tina TSOU' ; [e-mail] ; [e-mail] ; [e-mail] 
  Cc: [e-mail] ; [e-mail] 
  Sent: Wednesday, December 12, 2007 2:21 AM
  Subject: RE: [Dime] Review of draft-tsou-dime-base-routing-ext-03.txt


  Dear Glen and all,

  I know Jouni has two use cases. Jouni, Steve and I talked about them in Vancouver. I am trying to describe as below. If it is not precise, Jouni, please correct me.

   

  Use case #1:

  There are several visiting network, and one home network. 

  Type 1# service should go via intermediate node #a in visiting network A#.

  Type 2# service should go via intermediate node #b in visiting network B#.

  ......

  This use case can be for both mobile and fix network operator.

  [gwz] 

  So what happens if node #a is down?  Is Type 1# service disabled/unavailable?  If not, what's the point of the routing, given that it is unnecessary; if so, doesn't that sort of defeat the purpose of fail-over?

  [/gwz]

  [Tina: Ongoing session will disable/unavailable. But the service can use another stateful proxy agent. It is like one server fails. If one server fails, ongoing session will fail, but another server maybe can take over new session process.] 



  Use case #2:

  The charging data should be sent from that node.

  [gwz] 

  Does this mean that the data path must also pass through that node?

  [/gwz]

  [Tina: It is unnecessary, the node maybe just do charging base on session time.] 



  This use case can be for mobile operator.

   

  B. R.
  Tina

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