OSI PICS Manual

ISO 8073 for OSI/TS
Tandem OSI PICS Manual–135046
5-9
D.9.5 Supported Functions for Class 4 (C4 or C4L::)
The following functions are optional if class 3 is supported.
D.9.5 Supported Functions for Class 4 (C4 or C4L::)
The following functions are mandatory.
The following functions are mandatory if class 4 is operated over CONS.
Index Function References Status Support
T3F21 Concatenation 6.4 O No
T3F22 Data TPDU numbering (extended) 6.10 O Yes
Index Function References
T4F1 TPDU transfer 6.2
T4F2 Segmenting 6.3
T4F3 Reassembling 6.3
T4F4 Separation 6.4
T4F5 Connection establishment 6.5
T4F6 Connection refusal 6.6
T4F7 Data TPDU numbering (normal) 6.10
T4F8 Retention until acknowledgement of TPDUs (AK) 6.13
T4F9 Explicit flow control (with) 6.16
T4F10 Use of checksum 6.17
T4F11 Frozen references 6.18
T4F12 Retransmission on time-out 6.19
T4F13 Resequencing 6.20
T4F14 Inactivity control 6.21
Index Function References
T4F15 Assignment to network connection when operating over CONS 6.1.1
T4F16 Normal release when operating over CONS (explicit) 6.7.1
T4F17 Association of TPDUs with transport connections when operating over
CONS
6.9.1
T4F18 Expedited data transfer when operating over CONS (network normal) 6.11.1
T4F19 Multiplexing when operating over CONS 6.15
T4F20 Demultiplexing when operating over CONS 6.15
T4F21 Treatment of protocol errors when operating over CONS 6.22.1
T4F22 Recombining when operating over CONS 6.23