Ring Wrap - 3Com 3C780 - LinkBuilder FDDI Base Unit User Manual

6 Glossary
Primary path
Primary ring
Ring

Ring wrap

SAC
SAS
SDDI
Secondary ring
SMT
The segment(s) of the primary ring that pass through a station.
Conditions may exist in parts of the network that may cause
the path to be in a different ring (that is, secondary instead of
primary).
In the dual counter-rotating token ring architecture, the ring
that carries data traffic.
A set of stations through which information is passed
sequentially between stations, each station in turn examining
or copying the information, until the information is returned to
the originating station.
The ring reconfiguration that takes place when a break occurs
in the primary ring and the dual attached hubs and stations on
either side of the fault detect and automatically bypass it.
Single Attachment Concentrator. A concentrator that connects
a single ring only (usually the primary ring) to the FDDI
network.
Single Attachment Station. A station that offers a single
attachment to the FDDI network. The connection is to one
ring only (usually the primary ring), and that attachment is
made through a concentrator; there is no direct attachment to
the trunk ring.
Shielded [Twisted-Pair] Distributed Data Interface. FDDI
over shielded twisted-pair per the SDDI de facto STP standard.
In the dual counter-rotating token ring architecture, the ring
that is generally used for automatic recovery in the event of a
break in the primary ring.
Station Management. The function within an FDDI node
responsible for managing, maintaining, and controlling all the
local and remote station functions.