Re: M2UA, M3UA: Notify and Dynamic Registration

Grasic,

When the AS changes state, the SGP sends NTFY to all ASPs in the
ASP-INACTIVE or ASP-ACTIVE state for the AS.  The SGP may send
NTFY to ASPs newly ASP-INACTIVE for an AS.

So, when an ASP completes the ASP Up procedure: it might receive
NTFY of the current state of the AS for each AS for which the
ASP is configured at the SGP; it will receive NTFY that all of
the AS for which it is configured at the SGP that were
previously in the AS-DOWN state have moved to the AS-INACTIVE
(as a result of ASP Up).  When an ASP completes a registration
procedure: it might receive NTFY of the current state of the AS
as it has just become ASP-INACTIVE for the AS; it will receive
NTFY if the AS was AS-DOWN previous to registration as it has
moved to the AS-INACTIVE state as a result of registration.

--brian

Grasic Valerij    ITPSA9 wrote:                (Thu, 15 Feb 2007 13:56:42)
> 
> Hi,
> 
> 
> I have questions about sending Notify message in case 
> of dynamic registration for both protocols M3UA and M2UA when 
> there is moving into AS-INACTIVE state. For both protocols it is 
> said that Notify message must be send after change in AS state. 
> For protocol M3UA there is flow chart regarding dynamic registration:
>                 SGP                             ASP1 
>                  |                               |
>                  |<------------ASP Up------------|
>                  |----------ASP Up Ack---------->|
>                  |                               |
>                  |<----REGISTER REQ(LRCn,RKn)----|  LRC: Local Routing
>                  |                               |       Key Id
>                  |----REGISTER RESP(LRCn,RCn)--->|   RK: Routing Key
>                  |                               |   RC: Routing Context
>                  |----NTFY(AS-INACTIVE)(RCn)---->|
>                  |                               |
>                  |                               |
>                  |<------- ASP Active(RCn)-------|
>                  |-----ASP Active Ack (RCn)----->|
>                  |                               |
>                  |-----NTFY(AS-ACTIVE)(RCn)----->|
>                  |                               |
> 
> For M2UA there is a flow chart:
>                 SGP                       ASP1
>                  |
>                  |<---------ASP Up----------|
>                  |--------ASP Up Ack------->|
>                  |                          |
>                  |<--------REG REQ----------|
>                  |------REG REQ RESP------->|
>                  |                          |
>                  |<-------ASP Active--------|
>                  |------ASP Active Ack----->|
>                  |                          |
>                  |------NTFY(AS-ACTIVE)---->|
> 
> 
> 
> Which of following is correct (sending Notify with move into AS-ACTIVE
> state):
> 1. SGP must send Notify after ASP Up and before REG Req (following text
> description - Notify after ASP Up). 
> 2. SGP must send Notify after ASP Up and before REG Req,
> plus can send another Notify after REG REQ Resp
> 3. SGP can send Notify after REG Resp (following flow chart description 
> plus Notify after ASP Up)
> 
> If statement 3.) is true, this can makes problem if another equipment is
> working as statement 1.)?  
> 
> Or there is even differrence between  M3UA and M2UA on this issue?
> 
> Any suggestion wellcomed!
> 
> Regards,
> Valerij
> 
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-- 
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/