Re: RFC 4666 M3UA - Reg Request Message

Lincoln,

Haresign Lincoln wrote:                                           (Tue, 07 Nov 2006 11:42:43)
> Brian,
> 
> I'm just trying to clarify one issue based upon this chain and also some
> previous ones.  Do you believe that this is a valid scenario:
> 
> SG: DPC=1
> 
> AS1 - RK: DPC=1, OPC=2
> AS2 - RK: DPC=1, OPC=3
>
> The AS share the same point code with the SG.  AS1 receives all messages
> from PC=2.  AS2 receives all messages from PC=3.

Yes, this is the scenario of which I was speaking.

> If this is valid, I guess this shares the same problem whether or not
> you are using CIC loadsharing.  If AS1 completely goes away (all ASP
> wihtin AS1 become INACTIVE), there is little the SG can do but drop the
> messages.  

It can send UPU Inaccessible to PC=2.  At PC=2, ISUP, on receipt of UPU
for PC=1 will start User Part Test procedures, sending periodic UPT messages
to PC=1 until a UPA is returned instead of a UPU.  During the User Part Test
it will send no further ISUP messages to PC=1 and will perform proper
treatment of circuits for the isolated signalling relation.

> 
> The ETSI spec seems to imply the perhaps this is not valid since is has
> a finer granularity that PC.

The routing key is not of finer granularity than a PC.  SI is the first
element of finer granularity than a PC.

--brian

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