Cisco Cisco Packet Data Gateway (PDG)

 

 

 

 

 

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”.