Re: [M3UA] ASP UP in IPSP DE mode

"Brian F. G. Bidulock" <[email protected]> Fri, 7 Jan 2011 03:44:47 -0700
Newsgroups gmane.ietf.sigtran
Organization http://www.openss7.org/
Message-ID <[email protected]>
Suresh,

If by Model 2 you mean that Node2 can communicate with Node3 via Node1
then it is explicitly not supported by IPSP in M3UA.  Only point-to-point.
If you want Node2 to communication with Node3 via Node1, then Node1 must
be an SG and Node2 and Node3 must be ASPs.  That is, the recommended mode
is an ASP-SG mode.

--brian

Jaddu, Suresh (NSN - IN/Bangalore) wrote:     (Fri, 07 Jan 2011 13:29:10)
> Hi,
> 
> Since SE/DE is under discussion I have one relevant question. RFC talks
> about the two modes one is SGASP and another one IPSP (point to point)
> but it is possible to have point to multi point network as well as shown
> below (model-2).
> 
> model 1)
> --------
> 
> Node 1  |  ------->   Node 2  [IPSP-SE]
> 
> 
> model 2)
> --------
> 
> 	 |    ------>   Node2
> Node 1 |    		      [IPSP-DE]
> 	 |    ------->  Node3
> 
> 
> RFC talks about the IPSP is for point to point (which I understood as
> model 1) but it does not talk much (atleast I could not find mentioning
> of this) about the model-2 and possible configuration options. I know
> the model-2) is also can be achieved using the IPSP but this is not
> exactly the point to point some additional considerations are required,
> I am not sure any one has encountered this before?? Question is what is
> the recommended configuration for model-2? I do not think SE model will
> straight way work for model-2?? From what I understand DE is more
> suitable here?? Any one has similar views??
> 
> Suresh.

-- 
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/