M3UA - AS-PENDING with IPSP-IPSP
David Santos <[email protected]>
| Newsgroups | gmane.ietf.sigtran |
|---|---|
| Message-ID | <[email protected]> |
Hi, we have the following configuration depicted
below. Its an IPSP-IPSP communication. We have AS1
served by ASP1. ASP2 and ASP3 are in the same
Application Server (AS2). Every ASP is operating in
Override traffic mode, where ASP1 and ASP2 are
configured to be in the ASP-ACTIVE state and ASP3 is
acting as backup.
________ ________ ________
| | | | | |
| AS1 | | AS2 | | AS2 |
| PC = X | | PC = Y | | PC = Y |
|________| |________| |________|
| | |
___|____ ___|____ ___|____
| | | | | |
| ASP1 | | ASP2 | | ASP3 |
| IP@1 | | IP@2 | | IP@3 |
|Override| |Override| |Override|
|(Active)| |(Active)| |(Backup)|
|________| |________| |________|
| | |
|__________________|____________|
When ASP2 turns Inactive, is the following scenario
correct? Or shouldnt ASP2 send AS-PENDING? Which
would be the correct sequence? Could be correct that
just the ASP receiving ASP-Inactive sends AS-PENDING
messages as a SGP would do?
ASP1 ASP2 ASP3
| | |
|-------------------ASP Active----------------->|
|<----------------ASP Active Ack----------------|
| | |
|-------ASP Active------>| |
|<------ASP Active Ack---| |
| | |
|----------------NTFY(Alt ASP-Act)------------> |
| | |
|<-----ASP Inactive------| |
|----ASP Inactive Ack--->| |
| | |
|----NTFY(AS-PENDING)--->| |
|----------------NTFY(AS-PENDING)-------------->|
| | |
|<----NTFY(AS-PENDING)---| <== Is this correct? |
| | |
... ... ...
... ... ...
... ... ...
Thank you all.
______________________________________________
Renovamos el Correo Yahoo!
Nuevos servicios, más seguridad
http://correo.yahoo.es