CC
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... responder), which replies
with a Connection Confirm (CC) TPDU. Before sending the CR TPDU, the
initiator assigns the ...
... responder has decided which class is to be used, it
shall indicate this in the CC TPDU and shall invoke the appropriate
functions for the class. The responder ...
...
If the preferred class is not selected, then on receipt of the
CC TPDU, the initiator shall adjust its functions accordingly.
...
... transport connection,
the use of the expedited data option field of CR/CC allows both
Transport Service user to negotiate the use or non use of the
expedited data ...
... o if the first received TPDU is a CR and the transport
connection is not idle, this means that a CC TPDU is
retained: then retransmit it followed by any ED TPDU
and then DT TPDUs which are outstanding (that may or
...
...
NOTE: no TPDUs can be transmitted using network expedited until
CC becomes acknowledged, to prevent the network expedited overtaking the
CC.
...
... CC becomes acknowledged, to prevent the network expedited overtaking the
CC.
o if the first received TPDU is a RJ, then act as follows:
...
... DR TPDU is retained, then retransmit it
- if a CC TPDU remains unacknowledged, then carry
out the data resynchronization procedure described
below
...
... CR proposing the use of Class 1 or
a CC accepting the use of Class 1 the following mechanisms must be
available to deal with signalled errors during connection
establishment ...
... o Resynchronization
If no DT or ED TPDU is to be sent, receipt of a CC should be
acknowledged.
...
...
This phase is achieved by exchange of CR/CC TPDU using
the 'connection establishment' function. Since the multiplexing ...
... the TPDUs Credit field. Credit field values are only present in
the following TPDUs: CR, CC, AK..
7.2.5.4.1 Numbering of Data TPDUs
...
... edge = N (Credit received either in
CR or in CC and N < 2**p < 2** (n-1), where P is the number of
bits in credit field of CR ...
... entity which, prior to this event, has
sent a CR and has not yer received a CC, causes
the transport entity ...
... o As a result of duplication or
retransmission, a CC TPDU may be received
specifying a paired reference which is
already in use. The receiving ...
... CC TPDU.
o A CC TPDU may be received specifying a
reference which is in the frozen state. The
...
... timer T1. If this timer expires before a CC TPDU is received, the
CR TPDU is retransmitted and the timer restarted. After
...
... T1. If this timer expires before an AK or DT TPDU is
received, the CC TPDU is retransmitted according to the
retransmission principles in Section 7.4.3.9
...
... enters the data transfer phase. It must immediately transmit an
AK, ED or DT TPDU to complete the 3-way TPDU exchange. The
CC TPDU is subject to the usual rules of the data transfer phase
...
...
The CR and CC TPDUs may allocate an initial credit value
to their respective recipients. This value is limited to 15 by the
encoding of the TPDU. Where the extended ...
... connection establishment, as the 'Acknowledge
Time' parameter in the CR or CC TPDU (depending on whether the
transport entity is initiating or accepting the ...
... entity is initiating or accepting the transport
connection). If this parameter is present in a received CR or CC
TPDU, the value of AR should be set accordingly. If this
...
...
8.4 Connection Confirm (CC)
8.4.1 Structure
...
... 8.4.3 Fixed Part (Octets 2 to 7)
CC : Connection Confirm
Code: 1101
...