NAME

  BundledAsconfAckAndOther.seq - ASCONF-ACK chunk is received bundled with other chunk as the first chunk


PURPOSE

  To check that if ASCONF-ACK chunk is received bundled with other chunk as the
  first chunk then the endpoint should accept both of the messages.


SYNOPSIS

  ./BundledAsconfAckAndOther.seq [-tooloption ...] -pkt ./BundledAsconfAckAndOther.def
    -tooloption : v6eval tool option
  See Also: ../common/STD_PKT_COMMON.def
            ../common/SCTP_COMMON.def


PRE-TEST CONDITION

  Association is established between endpoint A and B. Arrange date
  in endpoint B such that ASCONF chunk with Add IP Address Parameter
  is sent to endpoint A.


TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (ESTABLISHED)                        (ESTABLISHED)
                                                  <-----    Asconf
                <-----------------      ASCONF
  ASCONF-ACK    ----------------->
  (Bunding with DATA)
                <-----------------      SACK
  TEST DESCRIPTION:
  1. Sending ASCONF message with Delete IP Address Parameter from
     endpoint B to A.
     Record the message sequence using a signal emulator.
  2. Send ASCONF-ACK message bundled with DATA chunk as the first
     chunk from endpoint A to B.
  3. Check A: Endpoint B should consider the address part of the
     existing association and SACK chunk should be received to
     response the DATA chunk at endpoint A.


NOTE

  None


REFERENCE

  RFC 5061
  5.1.1.  Congestion Control of ASCONF Chunks
    In defining the ASCONF Chunk transfer procedures, it is essential
    that these transfers MUST NOT cause congestion within the network.
    To achieve this, we place these restrictions on the transfer of
    ASCONF Chunks:
    C2)  An ASCONF Chunk may be bundled with any other chunk type
         including other ASCONF Chunks.  If bundled with other ASCONF
         Chunks, the chunks MUST appear in sequential order with respect
         to their Sequence Number.
    C3)  An ASCONF-ACK Chunk may be bundled with any other chunk type
         including other ASCONF-ACK Chunks.  If bundled with other
         ASCONF-ACK Chunks, the chunks MUST appear in sequential order
         with respect to their Sequence Number.