Re: SUA Routing Key Parametes

Ilie Glib <[email protected]>
Newsgroups gmane.ietf.sigtran
Message-ID <[email protected]>
Hello Brian,

see below

Regards

Ilie

On 2/7/06, Brian F. G. Bidulock <[email protected]> wrote:
> Ilie,
>
> Ilie Glib wrote:                                                      (Tue, 07 Feb 2006 08:48:45)
> > Hello Folks,
> >
> > I wonder what is the most general SUA RK format allowed by the RFC?
> >
> > For instance, can Routing Key parameter include Source Address,
> > Destination Address, and Address Range parameters at the same time?
> > Current text in section 3.10.14. of the RFC does not prohibit it.
>
> Yes, but the SG is not required to accept all combinations.
>
> > It seems that the RK cannot contain multiple destination SSNs which do
> > not form a contiguous range + one SSN (contiguous range of SSNs is
> > defined in address range parameter + one SSN from destination
> > address).
>
> To specify multiple non-contiguous SSN ranges, use multiple Address Range
> parameters in the Routing Key.

[Ilie] This is not possible according to the following RFC and IG statements:

RFC, page 20: Optional parameters can only occur at most once in an SUA message.

IG, page 11:
2.7.  Parameters should only occur once in a message
2.7.1.  Description of the problem

   Parameters in SUA messages can be repeated as many times as possible.
   This would lead to inconsistencies, such as 2 or more destination
   addresses.

Due to this text it is not possible to include Multiple Destination
and Source addresses in the RK parameter either.
That's why I think text improvements  would help.

>
> > The consequence is that multiple RKs in an ASP are inevitable,
> > although there might be no need in managing each SSN individually via
> > ASPTM.
>
> See above.
>
> > RK definition in M3UAbis is much better described. Is there any plan
> > to improve SUA RK definition?
>
> If you feel that you can improvie of the description, can you also
> propose text?

[Ilie] I will think about it.
>
> --brian
>
> --
> Brian F. G. Bidulock
> [email protected]
> http://www.openss7.org/
>


--
Ilie
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