Overview
21
National Aerospace Laboratory NLR ATN2001 - 1 “ATN Configuration and Analysis Issues” Jörg Steinleitner CNS Group NLR ATM Department ATN2001 London, 18th September 2001
description
“ATN Configuration and Analysis Issues” Jörg Steinleitner CNS Group NLR ATM Department ATN2001 London, 18th September 2001. Overview. A Tool for ATN Protocol & Performance Analysis - NAPPA Once upon a Time: “EOLIA Extension” Flight Trials ATN Configuration for PETAL IIe Flight Trials - PowerPoint PPT Presentation
Transcript of Overview
National Aerospace Laboratory NLR
ATN2001 - 1
“ATN Configuration and Analysis Issues”
Jörg SteinleitnerCNS Group
NLR ATM Department
ATN2001London, 18th September 2001
National Aerospace Laboratory NLR
ATN2001 - 2
Overview
A Tool for ATN Protocol & Performance Analysis - NAPPA
Once upon a Time: “EOLIA Extension” Flight Trials
ATN Configuration for PETAL IIe Flight Trials
PETAL IIe Flight Trials: Scenarios & Analysis
National Aerospace Laboratory NLR
ATN2001 - 3
Overview A Tool for ATN Protocol & Performance Analysis - NAPPA
– Principle of Operation– NAPPA Front-End’s
Once upon a Time: “EOLIA Extension” Flight Trials
ATN Configuration for PETAL IIe Flight Trials
PETAL IIe Flight Trials: Scenarios & Analysis
National Aerospace Laboratory NLR
ATN2001 - 4
NAPPA - Principle of Operation
Analysis Output
NaReV
Ne2eV
DB tables
Starting Point:
ATN End System or Router
Log Information
ATN Protocol Stack
Data Link Server
Controller/Pilot
ASE
ACSE
ASN.1 PER
TP4
CLNP
SNDCF
X.25
A429-W
DLS
HMI
Input
NAPPA = “NLR ATN Protocol and Performance Analyser”
National Aerospace Laboratory NLR
ATN2001 - 5
NAPPA Front-End’s - NaReV
mapwindow
altitudewindow
messagewindow
NaReV = “NAPPA Replay Viewer”
National Aerospace Laboratory NLR
ATN2001 - 6
NAPPA Front-End’s - Ne2eV
downlinktransmissions
uplinktransmissions
sent received Timeline
Ne2eV = “NAPPA end2end Viewer””
National Aerospace Laboratory NLR
ATN2001 - 7
Overview A Tool for ATN Protocol & Performance Analysis - NAPPA
Once upon a Time: “EOLIA Extension” Flight Trials– Scope of Flight Trials– From ATN Analysis to ATN Re-configuration
ATN Configuration for PETAL IIe Flight Trials
PETAL IIe Flight Trials: Scenarios & Analysis
National Aerospace Laboratory NLR
ATN2001 - 8
“EOLIA Extension” Flight Trials - Scope
GBISProATN 2.x
GESProATN 2.x
NARSIM
EOL2PIT
NLR Amsterdam
GBISProATN 2.x
GESProATN 2.x
MADAP
P2FEP
Maastricht UAC
GBISProATN 2.x
GESProATN 2.x
SAS HMI
EOL2PIT
AATM Bagneux
(A)GBISProATN 2.x
EEC Bretigny
GES Aussaguel
Inmarsat
SITA X.25 WAN
TESTAR/TTS
FLAAS
Cessna Citation II
National Aerospace Laboratory NLR
ATN2001 - 9
“EOLIA Extension” Flight Trials - Analysis
From ATN Analysis to ATN Re-configuration
Limits of ATN Protocol Layer Independence Perspective– Transport Layer Parameters vs. Satcom Performance– The Aspect of Multiple Connection-Oriented Communications– The Need for an Holistic View as part of ATN Configuration
A high-level ATN Analysis/Re-configuration Story Line– from Grounded Tests …– … to the first Test Flight …– … to the last Validation Flight
National Aerospace Laboratory NLR
ATN2001 - 10
What we saw during “Grounded” Tests ...
National Aerospace Laboratory NLR
ATN2001 - 11
… and what we got for the Test Flight...
National Aerospace Laboratory NLR
ATN2001 - 12
… and what we got for the last validation flight
National Aerospace Laboratory NLR
ATN2001 - 13
Overview A Tool for ATN Protocol & Performance Analysis - NAPPA
Once upon a Time: “EOLIA Extension” Flight Trials
ATN Configuration for PETAL IIe Flight Trials – From EOLIA to PETAL IIe
PETAL IIe Flight Trials: Scenarios & Analysis
National Aerospace Laboratory NLR
ATN2001 - 14
From EOLIA to PETAL IIe Configuration ... … considering the Changes with respect to the Mobile
Communication Infrastructure
From a SATCOM-based ATN …– Low-gain Antenna– Single Coverage– Different uplink + downlink Communication Channels– “Quasi-static” Configuration (X.25, IDRP)
to a VDL Mode 2-based ATN :– Four Ground Stations organised in two “Clusters”– Multiple Overlapping Coverage– Shared uplink + downlink Communication Channels– Dynamic Configuration (Hand-off’s, X.25, IDRP)
National Aerospace Laboratory NLR
ATN2001 - 15
Overview A Tool for ATN Protocol & Performance Analysis - NAPPA
Once upon a Time: “EOLIA Extension” Flight Trials
ATN Configuration for PETAL IIe Flight Trials
PETAL IIe Flight Trials: Scenarios & Analysis– Scenarios for AAL Non-revenue and BAC 1-11 Flights– Analysis Scope– Results
National Aerospace Laboratory NLR
ATN2001 - 16
PETAL IIe Flight Trials: Scenarios
Definition of Scenarios :– AAL B767 Non-revenue Flights– BAC 1-11 Test Flights– Definition of Flight Routes– Definition of Communication Behaviour
Overall Scenario Objectives– Verification physical VM2 Performance Characteristics– Verification VM2 Network Configuration– Verification overall end2end Configuration– Analysis end2end Network Performance– Verification overall Network Operation Characteristics
National Aerospace Laboratory NLR
ATN2001 - 17
Example: ‘AAL9599’ Scenario 9
National Aerospace Laboratory NLR
ATN2001 - 18
PETAL IIe Flight Trials: Analysis
CMU
VDR
VM2 GS
AGBIS
GES
VDRhealth
SQP
AVLC
X.25 + IDRP
end2end Transport Protocol TP4
Operational Data Exchange (CPDLC + CM)
Example: based on Airborne A429 & Ground CLNP Traces
National Aerospace Laboratory NLR
ATN2001 - 19
Example: ‘AAL9599’ 4th July 2001 Flight
National Aerospace Laboratory NLR
ATN2001 - 20
Summary
ATN Protocol & Performance Analysis as Integral Part of ATN Deployment
The “Real Stuff”: Importance of Operational Data Analysis
Cyclic Process: ATN Configuration <~> ATN Analysis
The Holistic Aspect of overall ATN Configuration
PETAL IIe : From Analysis to Interpretation of Results - A truly co-operative Effort
National Aerospace Laboratory NLR
ATN2001 - 21
QUESTIONS ?
