RFC 3342 (rfc3342) - Page 2 of 22

The Application Exchange (APEX) Option Party Pack, Part Deux!

Alternative Format: Original Text Document

RFC 3342       The Application Exchange (APEX) Party Pack      July 2002


Table of Contents

   1.    The attachOverride Option  . . . . . . . . . . . . . . . . .  2
   2.    The dataTiming Option  . . . . . . . . . . . . . . . . . . .  3
   2.1   Upper-Bounds on Delivery . . . . . . . . . . . . . . . . . .  4
   2.1.1 Final Hop Report . . . . . . . . . . . . . . . . . . . . . .  5
   2.1.2 Timing Error Report  . . . . . . . . . . . . . . . . . . . .  7
   2.2   Reporting on Delayed Delivery  . . . . . . . . . . . . . . .  8
   2.2.1 Transient Timing Report  . . . . . . . . . . . . . . . . . .  9
   3.    The hold4Endpoint Option . . . . . . . . . . . . . . . . . . 10
   4.    The dataHopping Option . . . . . . . . . . . . . . . . . . . 13
   5.    Initial Registrations  . . . . . . . . . . . . . . . . . . . 15
   5.1   Registration: The attachOverride Option  . . . . . . . . . . 15
   5.2   Registration: The dataTiming Option  . . . . . . . . . . . . 16
   5.3   Registration: The hold4Endpoint Option . . . . . . . . . . . 16
   5.4   Registration: The dataHopping Option . . . . . . . . . . . . 16
   6.    The APEX Party Pack DTD  . . . . . . . . . . . . . . . . . . 17
   7.    Security Considerations  . . . . . . . . . . . . . . . . . . 18
         References . . . . . . . . . . . . . . . . . . . . . . . . . 18
   A.    Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 19
   B.    IANA Considerations  . . . . . . . . . . . . . . . . . . . . 19
         Authors' Addresses . . . . . . . . . . . . . . . . . . . . . 20
         Full Copyright Statement . . . . . . . . . . . . . . . . . . 22

1. The attachOverride Option

   Section 5.1 contains the APEX option registration for the
   "attachOverride" option.

   The default behavior of the APEX relaying mesh, in the absence of
   processing options, is to allow at most one application to attach as
   a particular endpoint, on a "first come, first served" basis.  The
   "attachOverride" option provides gives preference to the current
   application trying to attach.

   If this option is present in the "attach" operation (c.f., Section
   4.4.1 of [1]) and if any application is already attached as the
   specified endpoint, that endpoint has its attachment terminated
   (c.f., Section 4.4.3 of [1]) concurrently with processing of that
   "attach" operation.  The "code" attribute of the resulting
   "terminate" operation is set to 556.

   Note that any data being expected by the previously-attached
   application may instead be delivered to the last application to
   successfully attach.  Accordingly, applications should take care to
   properly deal with incoming data having unrecognized transaction-
   identifiers (c.f., Section 6.1.1 of [1]).




Klyne, et. al.              Standards Track
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