About the Notify message in SUA

Hi,

The SUA RFC 3868 say about the notify message as follows.

4.3.4.5.  Notify Procedures
   A Notify message reflecting a change in the AS state MUST be sent
to all ASPs in the AS, except those in the ASP-DOWN state, with
appropriate Status Information and any ASP Identifier of the failed
ASP.  At the ASP, Layer Management is informed with an M-NOTIFY
indication primitive.  The Notify message must be sent whether the AS
state change was a result of an ASP failure or reception of an ASP
State management (ASPSM) / ASP Traffic Management (ASPTM) message. "In
the second case, the Notify message MUST be sent after any ASP State
or Traffic Management related acknowledgement messages  (e.g., ASP Up
Ack, ASP Down Ack, ASP Active Ack, or ASP Inactive Ack)."

Here it refers the second case in last line, which says that the
"Notify message must be sent after the ACK message for the
ASPTM/ASPSM". Here does it mean that the receiver of the ACK (ACK
message for ASPTM/ASPSM) message has to send the Notify message?

Please clarify and thanks in advance.

Regards,
Prasanna.