Cabletron Systems 7C03 - Manual (Page 95)

Viewing the Station List 4-27
FDDI Management
normally in a twisted condition, but the station with both
an A—>A and B—>B connection is isolated from the
primary ring and residing alone on the secondary ring.
B-B Twisted,
Wrapped
The ring is twisted due to the node’s B—>B connection,
as above; in addition, the ring is wrapped, bringing any
node isolated by the twist back into contact with the
stations on the main ring.
Unknown SPMA is unable to determine the node’s topology state.