OSI PICS Manual

ISO 8073 for OSI/TS
Tandem OSI PICS Manual–135046
5-20
D.15 Negotiation
For classes 1 to 4, if it is possible to respond to a CR TPDU, then it shall be possible to
receive the following.
D.15 Negotiation
D.15.1 Class Negotiation—Initiator
If it is possible to initiate a CR TPDU in a particular class, then the following holds.
What class(es) is (are) contained in the alternative class parameter if the preferred class
is:
Index TPDU User Data References
DRCR 32 octets of user data in a CR TPDU 13.3.5
Index References
NC The preferred class in the CR TPDU may contain any of the classes
supported by the implementation
6.5.4 h)
Index Preferred Class References
Allowed
Values
Supported
Values
NAC1 Class 1 6.5.4 h) None, 0, 1 Conf
NAC2 Class 2 6.5.4 h) None, 0, 2 Conf
NAC3 Class 3 6.5.4 h) None, 0, 1, 2, 3 Conf
NAC4 Class 4 6.5.4 h) None, 0, 1, 2, 3, 4 Conf
NAC5 Class 4 over CLNS 6.5.5 h) None Conf