FDDI Management

6-6 Viewing FDDI Information

•Local means that the MAC is not inserted into a primary or secondary path of a dual
ring, but may be connected to one or more other nodes. This is not a valid value for the
HSIM-F6.
•Isolated means that the MAC has no connection to the ring or other concentrator ports.
•Not Available means that there is no MAC on the FDDI ring associated with the
selected SMT entity. Again, this state will not occur for the HSIM-F6.
•Unknown means that device firmware cannot determine the MAC path.
•? indicates that NetSight Element Manager cannot determine the MAC path for the
selected ring.
Ring Configuration
The current configuration of the MAC and physical layers of the A and B ports.
Connection Policy
The SMT Connection Policy of an FDDI concentrator determines which types of
connections are allowed among the four FDDI port types: A, B, M (Master), and S
(Slave). FDDI protocol forbids Master—>Master connections; all other connection types
are legal, although some are considered to be undesirable.
The Connection Policy window, Figure6-3, lists potential connection types in a “Reject
X-Y” format, where X represents a port on the HSIM-F6, and Y represents the attaching
node. A checkmark in the check box next to a Connection Policy indicates that the
connection has been disallowed.
Figure6-3. The Connection Policy Window