Brian,
Thanks for your help. I just want to make sure I understand completely.
Do the following diagrams look correct in your opinion?
(Hopefully this diagram maintains its format properly)
---------
Consider the following scenario. ASP1 is member of AS1 (override mode).
+------+
| SGP1 |<--------- (Assoc11)
+------+ \
+------+
| ASP1 |
+------+
+------+ /
| SGP2 |<---------- (Assoc12)
+------+
Is this the correct behavior?
SGP1 SGP2 ASP1 (Assoc 11) ASP1
(Assoc 12)
| | | |
|<---------ASPUP (ASP ID=1)---------| |
|----------ASP UP Ack ------------->| |
| | | |
|<---------ASP Act. (RC=1) ---------| |
|-----------ASP Act. Ack----------->| |
| | | |
<<< MSUs received at SGP2 are directed to ASP1 via SGP1>>> |
| | | |
-------- SS7 MSU------------->| | |
|<--- MSU ------| | |
|------------- DATA --------------->| |
| | | |
---SS7 MSU--->|------------- DATA --------------->| |
| | | |
| |<-------ASPUP (ASP ID=1) --------------|
| |--------ASP UP Ack ------------------->|
| | | |
<<<Receiving ASPUP does not change routing of MSUs>>>
| | | |
-------- SS7 MSU------------->| | |
|<--- MSU ------| | |
|------------- DATA --------------->| |
| | | |
---SS7 MSU--->|------------- DATA --------------->| |
| | | |
|<---------------- ASP Act. (RC=1) ---------------------|
|---------------- ASP Act. ACK ------------------------>|
| | | |
<<<Receiving ASPAC at SGP2 from same ASP causes change routing MSUs>>>
| | | |
---SS7 MSU--->|------------- DATA --------------->| |
-------- SS7 MSU------------->|----------------- DATA --------------->|
| | | |
Cheers,
Ben
> Benjamin,
>
> Please see comments below:
>
> Benjamin Wilson wrote: (Fri, 01 Oct 2010 16:24:01)
>>
>> Are both SGPs now supposed to consider the ASP active at the AS
>> through "intercommunication"?
>
> Yes, the same way the SG coordinates other AS state.
>
>> If ASP1 then sends an ASPAC to SGP2, does he override himself
>> and cause a NOTIFY(ALT-ASP-ACTIVE) to be sent from SGP1?
>
> Re-read RFC 4666/4.3.4.3. ASPs do not `override themselves'.
>
>> Or is the SGP supposed to know that this the same ASP and DATA
>> messages should now be sent from BOTH SGPs to ASP1?
>
> Only one ASP is to be active for an AS in override mode.
>
> --brian
>
> --
> Brian F. G. Bidulock
> [email protected]
> http://www.openss7.org/
>
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