[Sigtran] [M3UA] IPSP receiving ASP ACTIVE Ack

[Santhana <santhana at huawei.com>]

Hi Brian

            The M3UA RFC says when an IPSP(in INACTIVE STATE) receives an ASP ACTIVE Ack, it has to change the state to ACTIVE. Is this applicable even when the IPSP has not sent the ASP ACTIVE before also.

 

Similarly for an ASP(in INACTIVE STATE) when it receives ASP ACTIVE Ack, is this applicable ?

 

From M3UA RFC 4666 In section 4.3.4.3.1

        Either of the IPSPs can initiate communication.  When an IPSP

   receives an ASP Active, it should mark the peer as ASP-ACTIVE and

   return an ASP Active Ack message.  An ASP receiving an ASP Active Ack

   message may mark the peer as ASP-Active, if it is not already in the

   ASP-ACTIVE state.

   Alternatively, when using the IPSP DE model, an interchange of ASP

   Active messages from each end MUST be performed.  Four messages are

   needed for completion.

 

Regards

Santhanakrishnan