Specifications
Token Ring DCE Management Views
DCE Management Views
5-12
SynOptics Series 5000
Management Module Guide
for which this performance information applies. The numbers are displayed in
the following format: Module.DCE (i.e., 6.1 means DCE 1 on module 6).
Soft Error Frames
Displays the total number of Soft Error Report frames detected on the ring.
Every time a soft error occurs (i.e., Line, AC, Lost Frame) the station that
detects the error will transmit a Soft Error Report frame. A high presence of
Soft Error Report frames indicates a large number of errors reported by
stations on the ring.
Table 5-8. Isolating Errors Breakdown Pie Chart Definitions
Statistic Definition
Line The total number of corrupted frames detected on this DCE. This
indicates an intermittent cable or hardware error. A line error can be
caused by the following conditions:
• A frame was repeated or duplicated.
• A code violation existed between the starting delimiter (SDEL)
and the ending delimiter (EDEL).
• A code violation existed within a token.
•An FCS error existed.
• Any of the above conditions existed and the Error Detection
Indicator (EDI) was zero.
Burst The total number of signals detected on this DCE that were not
accepted by a station port on the ring, which indicates a bit encoding
error (the absence of transitions for five half-bit times between the
SDEL and the EDEL).
AC The total number of AC errors detected on this DCE.
Abort The total number of abort delimiter transmitters detected on this DCE.
Internal The total number of internal errors detected on this DCE.
Table 5-9. Non-Isolating Errors Breakdown Pie Chart Definitions
Statistic Definition
Lost Frame The total number of frames that were transmitted on the ring but did
not return to the transmitting station. The frame was lost somewhere
in the ring, but there is no way to pinpoint where. This can be caused
by stations entering or leaving the ring.
Congestion The total number of receive congestion errors detected on this DCE.
Frame Copied The total number of frames addressed to a specific station, with the
Frame Status A bits already set to 1, indicating a possible line
disturbance or duplicate address on the ring.