LLC SAP Statistics
|
Data transfer
|
Data requests Rx
|
Number of LLC data requests
received from the MS.
|
Data confirms Tx
|
Number of LLC data requests
confirmation sent to the MS.
|
Data indications Tx
|
Number of LLC data indications
sent to the MS.
|
Data-Sent indications Tx
|
Number of LLC data sent
indications sent to the MS.
|
Unit data requests Rx
|
Number of LLC unit data
requests received from the MS.
|
Unit data requests Rx Drop
|
Description: This
proprietary counter indicates the total number of unit data requests
received from SNDCP layer and dropped at the LLC layer.
Triggers: Increments
when LLC receives a downlink packet from SNDCP and the queue in
LLC layer is full.
|
Unit data indications
Tx
|
Number of LLC unit data
indications sent to the MS.
|
Errors reported
|
Discarded frames Rx
|
Number of LLC discarded
frames received from the MS.
|
Discarded frames Tx
|
Number of LLC discarded
frames sent to the MS.
|
Error frames Rx
|
Number of LLC error
frames received from the MS.
|
Unrecognised frames Rx
|
Number of LLC unrecognized
frames received from the MS.
|
XID collisions
|
Number of LLC exchange
identifier (XID) request collisions.
|
OC Increments done
|
This counter indicates how many times the
OC value is incremented by "512". Overflow Counter
(OC) is incremented by "512" every time the received
LFN (LLC Frame Number -> N(U)) wraps around from "512" to "0",
and re-starts counting from "0".
|
Ciphering errors
|
Number of LLC ciphering
errors.
|
FCS errors
|
Number of LLC frame
check sequence errors.
|
LLC Frame statistics
|
Octets Rx
|
Number of bytes of LLC
frames received from an MS.
|
Octets Tx
|
Number of bytes sent
from the LLC layer to an MS from the SGSN.
|
Unack frames Rx
|
Number of unacknowledged
UI frames received at the LLC layer from an MS.
|
Unack frames Tx
|
Number of unacknowledged
UI frames sent from the LLC to an MS.
|
UI Rx
|
Number of LLC frames
with unnumbered information received from the MS.
|
UI Tx
|
Number of LLC frames
with unnumbered information sent to the MS.
|
UI Ciphered frames Rx
|
Number of LLC frames
with ciphered unnumbered information received from the MS.
|
UI Ciphered frames Tx
|
Number of LLC frames
with ciphered unnumbered information sent to the MS.
|
XID Rx
|
Number of XID-reset
messages received from the MS.
|
XID Tx
|
Number of XID-reset
messages sent to the MS.
|