User Guide

296 Utilities Reference
Utilities Reference
103-000153-001
August 29, 2001
Novell Confidential
Manual 99a38 July 17, 2001
Table 25 Generic Statistics for Token Ring Drivers That Use Tokentsm.nlm
Statistics Description
AC Errors This counter is incremented when a ring station receives a
Standby Monitor Present MAC frame with the A/C bits in the
Frame Status field equal to zero without first receiving an Active
Monitor Present MAC frame.
Transmit failed, abort delimiter sent This counter is incremented when a ring station transmits an
abort delimiter.
An abort delimiter is transmitted when a ring station receives a
frame in which the token bit of the access control field is set to
show Token and not Frame.
A ring station can also transmit an abort delimiter if an internal
hardware error has occurred.
Burst errors This counter is incremented when a ring station detects the
absence of five half-bit times (a burst-five error).
Other stations will detect a burst-four error followed by idles.
Frame copied errors This counter is incremented when a ring station recognizes
(receives or repeats) a frame addressed to its specific address
and detects that the FC field A bits are set to 1, indicating a
possible line hit or a duplicate address.
Frequency errors This counter is incremented when the frequency of the incoming
signal differs from the expected frequency by more than that
specified in Section 7 of IEEE Standard 802.5-1989.
Recoverable internal error This counts the times a ring station has a recoverable internal
error, which means a ring station is probably marginal.
Last ring status This code changes each time the ring status changes. Status
codes are reported by the physical hardware.
See the IBM* Token-Ring Network Architecture Reference for the
status code, function, and meaning.
Line errors This counter is incremented when a frame or token is repeated by
the ring station.
A frame is repeated when a Frame check Sequence error occurs
or a code violation exists between the starting and ending
delimiters of the frame.