NAME

  AsconfAckWithSetNoError.seq - ASCONF-ACK chunk is received to indicating Set Primary Address success without any Error Cause


PURPOSE

  To check that if ASCONF-ACK chunk is received to indicating Set Primary
  Address success without any Error Cause then the endpoint should mark
  the specified address as the primary address to send data to.


SYNOPSIS

  ./AsconfAckWithSetNoError.seq [-tooloption ...] -pkt ./AsconfAckWithSetNoError.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 the date
  in endpoint B such that ASCONF chunk with Set Primary Address Parameter
  is sent to endpoint A.


TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (ESTABLISHED)                        (ESTABLISHED)
                <-----------------      ASCONF
                                        (Set Primary Address)
  ASCONF-ACK    ----------------->
  (without any Error Cause)
  TEST DESCRIPTION:
  1. Sending ASCONF message with Set Primary Address Parameter from
     endpoint B to A.
     Record the message sequence using a signal emulator.
  2. Send ASCONF-ACK message with indicating Set Primary Address
     success without any Error Cause from endpoint A to B.
  3. Check A: Endpoint B should mark the specified address as the
     primary address to send data to.


NOTE

  None


REFERENCE

  RFC 5061
  4.1.2.  Address Configuration Acknowledgment Chunk (ASCONF-ACK)
    This chunk is used by the receiver of an ASCONF Chunk to acknowledge
    the reception.  It carries zero or more results for any ASCONF
    parameters that were processed by the receiver.  This chunk MUST be
    sent in an authenticated way by using the mechanism defined in
    [RFC4895].  If this chunk is received unauthenticated it MUST be
    silently discarded as described in [RFC4895].
         0                   1                   2                   3
         0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
        +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
        | Type = 0x80   |  Chunk Flags  |      Chunk Length             |
        +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
        |                     Sequence Number                           |
        +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
        |                 ASCONF Parameter Response#1                   |
        +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
        \                                                               \
        /                             ....                              /
        \                                                               \
        +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
        |                 ASCONF Parameter Response#N                   |
        +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
    Sequence Number: 32 bits (unsigned integer)
    This value represents the Sequence Number for the received ASCONF
    Chunk that is acknowledged by this chunk.  This value is copied from
    the received ASCONF Chunk.
    ASCONF Parameter Response: TLV format
    The ASCONF Parameter Response is used in the ASCONF-ACK to report the
    status of ASCONF processing.  By default, if a responding endpoint
    does not include any Error Cause, a success is indicated.  Thus a
    sender of an ASCONF-ACK MAY indicate complete success of all TLVs in
    an ASCONF by returning only the Chunk Type, Chunk Flags, Chunk Length
    (set to 8), and the Sequence Number.