NAME

  AsconfAckWithDelUnknown.seq - ASCONF-ACK chunk is received with Error Cause indicating Delete IP Address was not understood

PURPOSE

  To check that if ASCONF-ACK chunk is received with Error Cause indicating
  Delete IP Address was not understood then the endpoint should consider the
  operation failed and MUST NOT attempt to send any subsequent Delete IP
  Address requests to the peer.

SYNOPSIS

  ./AsconfAckWithDelUnknown.seq [-tooloption ...] -pkt ./AsconfAckWithDelUnknown.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 data
  in Endpoint B such that ASCONF message with Set Primary IP Address is
  sent to Endpoint A.

TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (ESTABLISHED)                        (ESTABLISHED)

                                                   <-----    Asconf
                <-----------------      ASCONF
                                        (Delete IP Address)
  ASCONF-ACK    ----------------->
  (Unrecognized Parameters)
                                                   <-----    Asconf
                <---no not send---      ASCONF
                                        (Delete IP Address)

  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 with Error Cause indicating Delete IP
     Address was not understood from endpoint A to B with Delete IP
     Address.
  3. Check A: Endpoint B should consider the operation failed and
     MUST NOT attempt to send any subsequent Delete IP Address
     requests to Endpoint A.

NOTE

  None

REFERENCE

  RFC 5061

  5.3.  General Rules for Address Manipulation

    When building TLV parameters for the ASCONF Chunk that will add or
    delete IP addresses, the following rules MUST be applied:

    F3a) If an endpoint receives an Error Cause TLV indicating that the
         IP address Add or IP address Deletion parameters was not
         understood, the endpoint MUST consider the operation failed and
         MUST NOT attempt to send any subsequent Add or Delete requests
         to the peer.

    F3b) If an endpoint receives an Error Cause TLV indicating that the
         IP address Set Primary IP Address parameter was not understood,
         the endpoint MUST consider the operation failed and MUST NOT
         attempt to send any subsequent Set Primary IP Address requests
         to the peer.