B–1
B
FDDI Connection Information
B.1 FDDI Connection Rules
The FDDI connection rules are defined in Figure B–1. The table defines which port
types (A, B, M, S) may be interconnected into legal topologies. In the figure, This
Node is the reference point for all connection decisions.
Figure B–1: FDDI Connection Rules Matrix
PHY port
A
B
M
S
A
B
M
S
No
Rule 1
Yes
Yes
Rule 2
No
Yes
Yes
Rule 3
Yes
No
Yes
Note 1
Yes
Yes
Yes
Yes
This Node
Other
Node
Yes = Accepts this connection
No = Does not accept this connection
LKG-4810-91I
