Last Month's ATN Performance Metrics
This page shows the set of data link performance statistics at the level of the ATM Network (i.e. all ANSPs) for all ATN equipped aircraft for February 2013. There is a corresponding set of graphs for FANS equipped aircraft and a further set of graphs that show the trend of these metrics over the preceding year.
At present not all data is yet available so that charts are currently based on a limited set of ANSPs.
Click on the graph to bring up a description of what the metric is measuring.
General Performance Measures
Technical Round Trip Delay (May 2013)
Provider Aborts Count (May 2013)
Total Provider Aborts | No. of CPDLC Sessions | PAs as a Percentage |
834 | 5459 | 15.00% |
CPDLC Technical Error Counts
Error Information | No. of occurences |
invalidMessageElement | Not yet available |
Context Management
DLIC Initiation Logon Counts (May 2013)
DLIC Contact Transaction Delay (May 2013)
DLIC Contact Continuity
DLIC Contact Expired Transactions | Total No. Of DLIC Contact Transactions | Continuity |
Not | available | yet |
CPDLC Ground Initiated Transactions
CPDLC Ground Initiated Transaction Delay (May 2013)
CPDLC Ground Initiated Continuity
Expired Events | Total Transactions | Continuity |
Not | yet | available |
CPDLC Uplink Message Usage (May 2013)
Uplink Error Counts
Error Text | Count |
ATC TIMEOUT - REPEAT REQUEST | 49 |
CONTROLLER TERMINATED CPDLC - USE VOICE | 16 |
CPDLC MESSAGE FAILED - USE VOICE | 75 |
CPDLC TRANSFER NOT COMPLETED - REPEAT REQUEST | 6 |
DOWNLINK DELAYED - USE VOICE | 81 |
DOWNLINK MESSAGE REJECTED - SEND 2 ELEMENTS MAX. | 1 |
DOWNLINK TIMESTAMP INDICATES FUTURE TIME | 180 |
DOWNLINKED RESPONSE RECEIVED AFTER TIMEOUT - USE VOICE | 32 |
LEVEL REQUEST REJECTED - REPLY TO LEVEL UPLINK FIRST | 6 |
REQUEST AGAIN WITH NEXT UNIT | 1 |
ROUTE REQUEST REJECTED - REPLY TO ROUTE UPLINK FIRST | 3 |
TOO MANY LEVEL REQUEST - EXPECT ONLY ONE REPLY | 1 |
TOO MANY ROUTE REQUEST - EXPECT ONLY ONE REPLY | 1 |
TRANSFER SUPPORT REQUEST REJECTED - REPLY TO TRANSFER SUPPORT UPLINK FIRST | 11 |
CPDLC Air Initiated Transactions
CPDLC Air Initiated Transaction Delay
CPDLC Air Initiated Continuity
Expired Events | Total Transactions | Continuity |
Not | available | yet |
CPDLC Downlink Message Usage
Downlink Error Counts
Error Text | Count |
ATC TIMEOUT - REPEAT REQUEST | 49 |
CONTROLLER TERMINATED CPDLC - USE VOICE | 16 |
CPDLC MESSAGE FAILED - USE VOICE | 75 |
CPDLC TRANSFER NOT COMPLETED - REPEAT REQUEST | 6 |
DOWNLINK DELAYED - USE VOICE | 81 |
DOWNLINK MESSAGE REJECTED - SEND 2 ELEMENTS MAX. | 1 |
DOWNLINK TIMESTAMP INDICATES FUTURE TIME | 180 |
DOWNLINKED RESPONSE RECEIVED AFTER TIMEOUT - USE VOICE | 32 |
LEVEL REQUEST REJECTED - REPLY TO LEVEL UPLINK FIRST | 6 |
REQUEST AGAIN WITH NEXT UNIT | 1 |
ROUTE REQUEST REJECTED - REPLY TO ROUTE UPLINK FIRST | 3 |
TOO MANY LEVEL REQUEST - EXPECT ONLY ONE REPLY | 1 |
TOO MANY ROUTE REQUEST - EXPECT ONLY ONE REPLY | 1 |
TRANSFER SUPPORT REQUEST REJECTED - REPLY TO TRANSFER SUPPORT UPLINK FIRST | 11 |