Olicom CrossFire 8730, Справочное руководство

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CrossFire 8730 Switch Reference Guide, DOC-7047 v. 1.1 Monitoring the Network from the Statistics Menu
No Ring
Number of frames dropped because the ring number was unknown.s.
802.5 Statistics Screen
To open this screen, do the following:
1. Starting from the main menu, select Statistics
→
Port Statistics.
2. Enter a Token-Ring port number, 1 - 20.
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