Cabletron Systems DELHF-UA, User Manual

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The Ring Map Configuration Screen
DELHF-UA User’s Guide 3-19
DAC -
(Dual Attached Concentrator) Station that supports M (Master)
ports and provides access for multiple stations. A DAC connects directly
to an FDDI ring using A and B ports.
SAS -
(Single Attached Station) Station that accesses the primary ring
only, via a concentrator.
SAC -
(Single Attached Concentrator) Station that accesses the primary
ring only and provides access for multiple Single Attached Stations
(SAS). Single Attached Concentrators provide the same services as
DACs, but without the redundancy of the dual ring topology.
3.7.2 Ring Map Configuration Screen Commands
The following list describes each of the Ring Map Configuration screen
commands:
Address Mode [ ]
The Address Mode command allows the user to switch between canonical
and MAC format addresses. To toggle between the two address modes,
press the SPACE bar.
While Local Management updates the ring map, for example,
during a ring topology change, the screen displays
??-??-??-??-??-?? to illustrate an undetermined address. You
cannot use the scroll commands until Local Management
finishes rebuilding the map.
The Ring Map display stops at the first occurrence of an
undetermined address, and does not display any known
information beyond this point.