assistance please!!!

["sridhar" <bamsidhar@cominsights.com>]

hi all,
 here are few questions related to cops for rsvp for which i am feeling very much difficult to understand or come to conclusion.

2.5 Synchronization Behavior
[...]
A PEP that caches state from a previous exchange with a disconnected
   PDP MUST communicate this fact to any PDP with which it is able to
   later reconnect. This is accomplished by including the address and
TCP port of the last PDP for which the PEP is still caching state in
   the Client-Open message.

Q>. In what form will PEP store the state of REQ and what are its contents?

_______________________________________________________________________

2.5 Synchronization Behavior

[..]   
   Additionally, the remote PDP may request that all the PEP's
   internal state be resynchronized (all previously installed requests
   are to be reissued) by sending a Synchronize State message.

Q>. When connection is re-established, is only Requests processed in absence of PDP should be reissued OR all previous REQ's ?

Q>. While reissuing the requests, in case new request is to be processed wheather it is done after sending SSC or it can be done between?

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3.3 Report State (RPT)  PEP -> PDP

   [..]
   The Report State may also be used to provide periodic updates of
   client specific information for accounting and state monitoring
   purposes depending on the type of the client. In such cases the
   accounting report type should be specified utilizing the appropriate
   client specific information object.

Q>. What exactly do mean by Accounting? When is Accounting RPT message triggered? How does PDP make use of Accounting RPT ..


thanks for help!!                                             
                                                       with warm regards
                                                           bamsi