Cabletron Systems SmartStack STS16-20FRM, Installation And User Manual

Page: 179 / 260

165
Monitoring the Network from the Console Statistics Menu SmartStack STS16-20RM/STS16-20FRM Token Ring Switches, P/N: 9032957-01
802.5 Statistics Screen
To open this screen, do the following:
1. Starting from the main menu, select Statistics
→ → → →
Port Statistics.
2. Enter a port number.
3. Select 802.5 Statistics ...
Line Errors
This counter is incremented when a frame or token is copied or repeated by a
station, the E bit is zero in the frame or token, and one of the following conditions
exists:
1. There is a non-data bit (J or K bit) between the SD and the ED of the frame or
token.
OR
2. There is an FCS error in the frame.
Burst Errors
This counter is incremented when a station detects the absence of transitions for
five half-bit timers (burst-five error).
AC Errors
Number of times a station received an Active Monitor Present (AMP) frame or a
Standby Monitor Present (SMP) frame in which both the address recognized (A) bit
and the frame copied (C) bit are set to 0, indicating that no station has recognized