Bandwidth Reduction Techniques: An Update

1
Bandwidth Reduction Techniques An Update
Joe Sorroche ASRCC Program Director/Engineer Pho
ne 505-853-0372 Email joe.sorroche_at_kirtland.af.
mil

Jerry Szulinski LMC Principal Systems
Engineer Phone [phone] Email
jerry.szulinski_at_kirtland.af.mil
2
Outline

• Introduction
• DMOC Network Descriptions
• Bandwidth Reduction Techniques
• Network Rules
• DIS Filter Updates
• TSR Updates
• Conclusion

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Introduction

• DMOC, formerly TACCSF, participates in and
  conducts several distributed training events each
  year
• DMOC synthetic battlespace infrastructure
• Several WAN connections to DMOC
• Over 25 T-1s
• DMOC internal networks
• Over 100 VLANs
• DIS filtering and data transport functionality
  continuously added for training events
• DFA and TSR have adapted to ever changing event
  requirements

4
DMOC Network Description
T-1 to DTOC
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DMOC Network Connections
ARCNET
JDEP Net
Seattle(Boeing)
Battle Creek
JTEN
MDANet
Bradley, CT
Ft. Dodge
Offutt AFB (RJMT)
DTOC
WPAFB
Fallon
Pentagon (CVC)
JNTF JNIC (SWC)
Hill AFB
Damneck
St. Louis (CIDS/VWC)
Langley AFB
JFCOM (JTASC)
Nellis (CAOC-N)
Charleston AFB
Tinker AFB
CWIC
DMOC
NTC
29th Palms
DMON CAF DMO
Ft Sill
Luke
TTGP
58SOW
T-1
AFRL Mesa
Robins AFB
Ft Benning
MDANet
Ft. Huachuca
19 SOS
Greenville
DMON
505 CCW
Ft Bliss
Tyndall AFB
Ft Hood
Eglin AFB
JDEP Net
IWC
DMON NOC Orlando, FL
DREN
DREN
ARCNET (CASNET)
JTEN (JNTC)
Not all cloud nodes shown!
As of 14 Jun 04
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DIS Filter Functionality
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Bandwidth Reduction Techniques

• Network Rules
• Network use for only exercise data
  (DIS/NATO-EX/etc.) during the exercise
• No FTPs during exercise or integration testing
• Maximize bandwidth by adjusting heartbeat rates
• Aircraft Entity State PDU heartbeat rates
• 5 seconds
• Ground Entity State PDU heartbeat rates
• 55 seconds
• IFF and Emission PDU heartbeat rates
• 10 seconds
• Quality of Service (QOS) added to routers

8
DIS Filter/Analyzer (DFA)

• Linux platform
• User configurable gateway (LAN not HLA gateway)
• Multiple NICs
• Filter criteria are applied to PDUs as they are
  read (minimal latency)
• Exercise Identification (ID)
• PDU Type (Entity State Fire Detonation Signal
  Start/Stop etc.)
• Allow/Deny by Site/App/Entity and DIS Enumeration
• Interactions (Fire/Detonation/etc. PDU) from
  denied entities are also denied

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DFA GUI
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DFA Added Capabilities

• Additional PDU Types
• DFA Manager
• DIS Voice Auto Subscribe
• Transport Function
• PDU Update Rate Change
• DIS PDU Delay
• Range Filter Shapes
• Multiple Paths between networks
• DFA on SGI OS
• Data Conversions
• Boeing J Signal PDUs to SISO J
• DIS Enumerations
• IFF

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DFA Proposed Added Capabilities

• Add TADIL J messages to DFA teleport capability
• DFA Manager recovery
• Ping through DFA
• Configure PC as gateway to pass pings
• Pass non DIS data
• Can use TSR on same machine with different ports

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Software Router Overview

• TACCSF Software Router (TSR) is a transport
  utility (not related to OSI)
• Minimal impact on existing sites and systems
• Fixed bandwidth limitation
• Non-uniform bandwidth load
• Support for all UDP-based broadcast data
• DIS
• NATO-EX
• Video images
• Free text messages
• Voice over IP

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Software Router Overview

• GNU/Linux platform
• Deployability
• Remote operation
• Low cost
• Data metering and buffering
• Maximum packets per second
• Maximum bytes per second
• Packet priority
• Multicast ensures a single copy of data on a
  network

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Software Router Overview
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Software Router Overview

• Configuration
• Local routes
• Remote (bridging) route
• FIFO size
• Maximum bytes per second
• Maximum packets per second
• Debug level
• Network utilization and health monitoring

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Software Router GUI
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New TSR Features

• Graphical User Interface
• Multiple config files
• Simple forwarder function
• Bridging route medium
• UDP
• DIS Set Data PDU wrapper
• Bridging route protocol
• Multicast
• Unicast
• Broadcast

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Conclusions

• DIS Filter LAN GATEWAY
• Transmitter side filtering
• Multiple routes per filter
• Data-content filtering
• Data conversion capability
• DIS Filter Manager
• TSR TRANSPORT UTILITY
• Provides data flow metering and priority scheme
• UDP protocol converter (ATM/network friendly)
• DIS Set Data PDU wrapper

19
QUESTIONS