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DOD & Federal VTC Interoperability Standards

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Presentation on theme: "DOD & Federal VTC Interoperability Standards"— Presentation transcript:

1 DOD & Federal VTC Interoperability Standards
In support of: Defense Information Systems Agency Interoperability Directorate, IN42 Chuck Grandgent Dir. Strategic Development Octave Communications, Inc., Nashua, NH Chair, IMTC Dataconferencing Activity Group November 2002 UNCLASSIFIED

2 Background - In the 1980’s and early 1990’s DOD relied on proprietary equipment to achieve VTC interoperability. - In the mid 1990’s DOD successfully switched to international standards-based VTC equipment to achieve interoperability. As a result, DOD is now no longer reliant on any one VTC vendor to achieve interoperability. Multiple vendors within DOD Customer has the option to choose the vendor that best meets his particular needs. Interoperability is good (but not perfect) However, technology and use of the technology is rapidly evolving New standards are often needed to keep up with new technology and new requirements UNCLASSIFIED

3 Joint Technical Architecture
Joint Technical Architecture (JTA) is the set of information technology standards needed for interoperability within U.S. Dept of Defense(DOD) Developed jointly by all DOD Services and Agencies UNCLASSIFIED

4 Joint Technical Architecture
Goal: improve interoperability within DOD Adopts mostly international standards Includes mandatory and emerging standards To be included as mandatory, standard must be approved (decided or ratified) and have commercially available implementations Website: www-jta.itsi.disa.mil JTA 4.0 approved Aug 12, 2002 JTA 5.0 in draft form UNCLASSIFIED

5 JTA Policy JTA is mandated for all DOD per Aug. 12, 2002 memorandum
Exceptions require a waiver with concurrence from USD(A&T) and ASD(C3I) Memorandum signed by: E.C. Aldridge, Jr – Under Secretary of Defense (Acquisition, Technology & Logistics John P. Stenbit – DOD Chief Information Officer OK to implement non-standard protocols to meet special requirements, as long as the corresponding JTA standard protocol is also implemented. UNCLASSIFIED

6 JTA Status – v 4.0 Latest approved version: 4.0 dated August 12, 2002
Mandates the following families of international standards pertaining to VTC and collaboration: H.320 for digital switched ckts H.323 for packet switched networks such as TCP/IP Lots of recent interest in DOD H.324 for low bit rate (9.6 –28.8 Kbps) (POTS) T.120 for all circuit types References Federal Standard for VTC for further details (Federal Telecommunications Recommendation 1080) UNCLASSIFIED

7 FTR 1080 Federal Telecommunications Recommendation 1080
Federal Standard for VTC Website: Latest approved version: FTR 1080B-2002 Unanimous approval by Federal Telecommunication Standards Committee Final Approval Aug 2002 Adds H.323 for VTC over packet switched networks (in addition to H.320 for circuit switched networks) Supercedes FTR 1080A-1998 Appendix A is VTC Profile UNCLASSIFIED

8 VTC Profile (FTR 1080B-2002, Appendix A)
Detailed profile of standards tailored for DOD Interoperability Includes security specifications (Type 1 encryption) Includes Protocol Implementation Conformance Statements (PICS) Has been very useful in improving interoperability in DOD Cited in DOD procurement documents to “raise the bar” on standards-based interoperability Mandated for DOD by DOD policy and JTA Optional for rest of Federal Gov’t UNCLASSIFIED

9 VTC Profile Features Point-to-Point Multipoint Circuit Switched
Packet Switched Digital Compressed Video Near Full Motion Audio Coding Narrowband Wideband Collaboration Application Sharing Shared Whiteboard Still Image Transfer File Transfer Security (Encryption) Classified Unclassified Sensitive ISDN Interfaces Electrical Interfaces Mechanical Interfaces UNCLASSIFIED

10 Key Standards & Interfaces in the VTC Profile
(FTR 1080B-2002, Appendix A) Audio Standards VTC Standards Video Standards G Narrow-band Voice G Wide-band Voice G Low Bit-rate Voice G Narrow-band Voice G Low Bit-rate Voice H Narrowband VTC H Packet Network VTC H Frame Structure H Real Time Control H Multiplexing H Control Signals H Establish Comm H Signalling H Far-end camera control H Supplementary Services H Video Coding H Video Coding Collaboration Standards Multipoint Standards T Multimedia Data T Multipoint Comm T Data Protocol Stacks T Conference Control T Multipoint Comm Spec T Shared Whiteboard T File Transfer T Application Sharing H MCUs H Establish Comm H MCUs Interface Standards ISDN Switched 56 T1 / Fractional T1 Dedicated Packet Switched LANs Networks EIA-366-A Dialing Interface TIA/EIA-422-B Digital Interface TIA/EIA-423-B Digital Interface EIA Digital Interface TIA/EIA-530-A Digital Interface Encryption Interfaces KG Interface KIV Interface UNCLASSIFIED

11 VTC Standards Policy FTR 1080 is official VTC standards document for DOD Mandated per 30 Mar 1998 ASD-C3I policy memorandum and as per JTA 4.0 Copy of policy memorandum can be found at end of FTR 1080B-2002. UNCLASSIFIED

12 Next version of VTC Profile: Focus on joint tactical VTC stds
Army is fielding its Battlefield VTC (BVTC) Navy is fielding shipboard Tactical VTC NATO is planning its tactical VTC system Other DOD components are also starting to use tactical VTC Need for interoperability to existing DOD VTC base, other government agencies & contractors Need for joint, combined, & coalition interoperability between DOD services, NATO, & coalition partners First meeting held Sept , 2002 (gov’t only) Looking for voluntary industry participation – contact Klaus Rittenbach, UNCLASSIFIED

13 Army BVTC Equipment Speaker Video Camera Router Radio Headphones/Mike
Ruggedized laptop Microphone Audio/Video CODEC UNCLASSIFIED

14 A few of the Issues Need better support for common set of low bit rate audio standards on H.323 VTC Forced to go with G.711 as common denominator Need better interoperability & support of T.120 standards in H.320 and H.323 VTC products More robust, fully integrated, full featured implementations of T.120 Firewall issues Need standardized, non-proprietary methods of passing through firewalls without opening many ports Managing gatekeeper configurations - prone to human error Error resiliency is key requirement for future codecs UNCLASSIFIED

15 Summary U.S. federal government relies on international standards for interoperability The JTA mandates the minimum set of standards and guidelines for the acquisition of all DoD systems JTA 4.0 was approved 12 Aug 2002; JTA 5.0 is in draft form Primary standards applicable to VTC currently in JTA – H.320, H.323, & T.120 families FTR 1080 VTC Profile is a profile of VTC standards tailored for DOD and cited in the JTA VTC Profile to be enhanced to more fully address Joint Tactical VTC standards UNCLASSIFIED


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