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9F426-03 Module Specific Information
Ring Map Node Screen Fields
The following information briefly explains each Ring Map Node Screen field.
Address
Displays the address of the selected node.
Upstream Address
Displays the address of the selected node’s nearest upstream neighbor.
Node Class
Displays the class (NAS, DAS, DAC, SAS, or SAC) of the selected node. For an
explanation of these class codes, see page 5.
MAC Count
Displays the number of MACs (Media Access Controllers) that are attached to the
specified ring.
Non-Master Count
Displays the number of A and B ports on the selected node.
Master Count
Displays the number of M ports controlled by the selected node.
Peer Wrap
Indicates whether a wrap condition exists on a port. A peer wrap does not occur
when the A or B port is attached to an M port.
Unattached Conc (DAC only)
Indicates whether the selected node has no active A or B port.
Twisted A-A
Indicates whether the A port is connected to another A port.
Twisted B-B
Indicates whether the B port is connected to another B port.
Synchronous Service
Indicates whether the selected node uses synchronous bandwidth which
guarantees a certain percentage of the total FDDI bandwidth for real-time
applications.
Rooted
Indicates whether the selected node has an active A or B port when one, and only
one, end of the fiber link connects to an M port.
