Ericsson LBI-39224 - Manual (Page 259)

LBI-39224
4-21
VFR = 0 (invalid frame received)
CRC = 0 (CRC check failed)
RAB = 1 (received frame was aborted from transmitting station)
U_FRMR Tx/Rx
A count of U-frame FRMR (frame reject) responses transmitted and
received.
S_REJ Tx/Rx
A count of S-frame REJ commands/responses transmitted and received.
T1 Polls
A count of polls issued to the remote station due to its failure to
acknowledge an I-frame, U-frame command, or polled S-frame
command within a given time limit. For channel B, this count also
includes the number of polls issued to all remote stations when no
messages have been transferred over the link after a given time interval.
Rx Queue Overflows
A count of received frames lost due to a full receive queue condition.
HDLC Channel B
In addition to the fields described above, the Channel B HDLC
statistics screen also contains information on up to eight Audio Boards
or T1/E1 Interface Cards (TEC) that may be assigned to the current
Controller Board. These fields display "Y" to indicate an active Audio
Board or TEC (a response is being received via the HDLC link), or "N"
to indicate an inactive Audio Board or TEC (no response is being
received via the HDLC link).
4.5.2 GSC Node Statistics
The (GSC) NODE STATISTICS dialog box displays various interface
module specific data.