NAME

  BundShutdownCompleteAndData.seq - SHUTDOWN-COMPLETE chunk is received bundled with DATA chunk


PURPOSE

  To check that if SHUTDOWN-COMPLETE chunk is received bundled with DATA
  chunk then endpoint should response with ABORT message.


SYNOPSIS

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


PRE-TEST CONDITION

  Association established between endpoint A and B. Also arrange the
  data in endpoint A such that SHUTDOWN-COMPLETE chunk bundled with
  DATA chunk is sent to endpoint B.


TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (ESTABLISHED)                        (ESTABLISHED)
  SHUTDOWN          ----------------->
                    <----------------       SHUTDOWN-ACK
  SHUTDOWN-COMPLETE ----------------->
  (data chunk multiplexed)
                <----------------       ABORT
                                        (Protocol Violation)
  TEST DESCRIPTION:
  1. Attempt to terminate an association between endpoint A and B by
     sending SHUTDOWN message from endpoint A. SHUTDOWN-ACK messages will
     be received. Send SHUTDOWN COMPLETE chunk bundled with data chunks
     in response to SHUTDOWN-ACK Chunk. SHUTDOWN COMPLETE chunk should
     be first chunk in the packet.
  2. Check A: ABORT should be received at endpoint A.
  3. Check B: Error cause in ABORT is set to "Protocol Violation".


NOTE

  None


REFERENCE

  RFC 4960
  6.10.  Bundling
    An endpoint bundles chunks by simply including multiple chunks in one
    outbound SCTP packet.  The total size of the resultant IP datagram,
    including the SCTP packet and IP headers, MUST be less that or equal
    to the current Path MTU.
    If its peer endpoint is multi-homed, the sending endpoint shall
    choose a size no larger than the latest MTU of the current primary
    path.
    When bundling control chunks with DATA chunks, an endpoint MUST place
    control chunks first in the outbound SCTP packet.  The transmitter
    MUST transmit DATA chunks within an SCTP packet in increasing order
    of TSN.
    Note: Since control chunks must be placed first in a packet and since
    DATA chunks must be transmitted before SHUTDOWN or SHUTDOWN ACK
    chunks, DATA chunks cannot be bundled with SHUTDOWN or SHUTDOWN ACK
    chunks.
    Partial chunks MUST NOT be placed in an SCTP packet.  A partial chunk
    is a chunk that is not completely contained in the SCTP packet; i.e.,
    the SCTP packet is too short to contain all the bytes of the chunk as
    indicated by the chunk length.
    An endpoint MUST process received chunks in their order in the
    packet.  The receiver uses the Chunk Length field to determine the
    end of a chunk and beginning of the next chunk taking account of the
    fact that all chunks end on a 4-byte boundary.  If the receiver
    detects a partial chunk, it MUST drop the chunk.
    An endpoint MUST NOT bundle INIT, INIT ACK, or SHUTDOWN COMPLETE with
    any other chunks.