Cabletron Systems 9A128-01 manual 15 32,768 a permanently set value for this bit

FDDI Management

Each device has its own connection policy; however, when two devices attempt to connect, their combined established connection policies dictate the connections that will be allowed. In an attempted connection between two nodes, the most lenient policy will determine whether the connection (as long as it is legal) can be made. For example, if two FDDI nodes attempt an A—>A connection, and this connection is not allowed at one FDDI node but allowed at the other, the connection would be accepted. If the connection policy at both nodes disallows the connection, the connection will be rejected.

This is a read-only window; you currently cannot edit the connection policy via SPECTRUM Element Manager.

You can use any SNMP Set Request or MIB tool to edit the Connection Policy for your

TIP device by setting the fddimibSMTConnectionPolicy MIB OID (part of the MIB-II FDDI Transmission MIB (RFC1512). fddimibSMTConnectionPolicy is simply a 16-bit integer value (ranging from 32768 to 65535) that corresponds to the connection policy (in the “Reject X-Y” format, where X represents a port on the FDDI Switch Module, and Y represents the attaching node).

To set the connection policy for the device, total the bit values corresponding to

the desired connection policy according to the table below, and then use your SNMP Set Request or Mib tool to set the value for the appropriate SMT index. For example, to set a connection policy that disallowed the undesirable A-A or B-B connections you would set the fddimibSMTConnectionPolicy MIB OID to 32,801:

32,768 (reject M-M, required) + 32 (reject B-B) + 1 (reject A-A).

Policy	Power
reject A-A	20	(1)
reject A-B	21	(2)
reject A-S	22	(4)
reject A-M	23	(8)
reject B-A	24	(16)
reject B-B	25	(32)
reject B-S	26 (64)
reject B-M	27	(128)
reject S-A	28	(256)
reject S-B	29	(512)
reject S-S	210 (1,024)
reject S-M	211 (2,048)
reject M-A	212 (4,096)
reject M-B	213 (8,192)
reject M-S	214 (16,384)
reject M-M	215 (32,768 — a permanently set value for this bit)

Connection Policy 4-7