Enterasys Networks 700 - Manual (Page 156)

FDDI Management
5-12 Viewing FDDI Information
Available statistics are:
Transmit Frames
The number of frames transmitted by the MAC associated with the SMT during
the chosen interval.
Receive Frames
The number of frames received by the MAC associated with the SMT during the
chosen interval.
Frame Errors
The number of error frames detected by the MAC associated with the SMT during
the chosen interval that had not been detected previously by other stations. Error
frames may include frames with an invalid Frame Check Sequence (FCS), with
data length errors, or with internal errors that prevent the MAC from transferring
the frame to the Logical Link Control (LLC) layer.
Lost Frames
The number of frames detected by the MAC associated with the SMT during the
chosen interval that have an unknown error, so their validity is in doubt. When
the MAC encounters a frame of this type, it increments the Lost Frame counter
and strips the remainder of the frame from the ring, replacing it with idle
symbols.
Ring Ops
The number of times the ring has entered the “Ring Operational” state from the
“Ring Not Operational” state during the selected interval. This counter updates
when the MAC informs Station Management (SMT) of a change in Ring
Operation status.
FDDI Statistics
The FDDI Statistics window displays traffic statistics for the DELHF-UA’s SMT
entity, including the number of frames and kilobytes per second (averaged over a
defined poll rate), the peak number of kilobytes per second, and the module’s
bandwidth utilization (expressed as a percentage) for the current poll interval.
To access the FDDI Statistics window:
1. In the Device View window, click on Device to display the Device menu.
2. Select FDDI Statistics. The FDDI Statistics window ( Figure 5-6 ) will appear.