This page shows the set of data link performance statistics at the level of the ATM Network (i.e. all ANSPs) for all FANS equipped aircraft for February 2013. There is a corresponding set of graphs for ATN 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
Trend over past year.
Provider Aborts Count
Trend over past year.
CPDLC Technical Error Counts
Trend over past year.
Context Management
DLIC Initiation Logon Counts
Trend over past year.
DLIC Contact Transaction Delay
Trend over past year.
DLIC Contact Continuity
DLIC Contact Expired Transactions |
Total No. Of DLIC Contact Transactions |
Continuity
|
56 |
975 |
0.943
|
Trend over past year.
CPDLC Ground Initiated Transactions
CPDLC Ground Initiated Transaction Delay
Trend over past year.
CPDLC Ground Initiated Continuity
Expired Events |
Total Transactions |
Continuity
|
13 |
240 |
0.846
|
Trend over past year.
CPDLC Uplink Message Usage
Trend over past year.
Uplink Error Counts
Error Text |
No. Of Occurences
|
ATC TIMEOUT - REPEAT REQUEST |
32
|
CONTROLLER TERMINATED CPDLC - USE VOICE |
11
|
CPDLC MESSAGE FAILED - USE VOICE |
190
|
CPDLC TRANSFER NOT COMPLETED - REPEAT REQUEST |
14
|
DOWNLINK DELAYED - USE VOICE |
5
|
DOWNLINK MESSAGE REJECTED - SEND 2 ELEMENTS MAX. |
3
|
DOWNLINK TIMESTAMP INDICATES FUTURE TIME |
19
|
DOWNLINKED RESPONSE RECEIVED AFTER TIMEOUT - USE VOICE |
113
|
ELEMENT COMBINATION REJECTED - USE VOICE |
6
|
LEVEL REQUEST REJECTED - REPLY TO LEVEL UPLINK FIRST |
22
|
ROUTE REQUEST REJECTED - REPLY TO ROUTE UPLINK FIRST |
4
|
Trend over past year.
CPDLC Air Initiated Transactions
CPDLC Air Initiated Transaction Delay
Trend over past year.
CPDLC Air Initiated Continuity
Expired Events |
Total Transactions |
Continuity
|
0 |
16 |
1.0
|
Trend over past year.
CPDLC Downlink Message Usage
Trend over past year.
Downlink Error Counts
Error Text |
No. Of Occurences
|
AIR SYSTEM TIMEOUT |
2
|
MSG BLOCKED BY FDPS |
1
|
RESPONSE TIMER EXPIRED |
2
|
UPLINK DELAYED IN NETWORK AND REJECTED. RESEND OR CONTACT BY VOICE |
2
|
UPLINK DELAYED IN NETWORK THEN REJECTED. RESEND OR CONTACT BY VOICE |
12
|
UPLINK TIMESTAMP INDICATES FUTURE TIME. |
16
|
Trend over past year.