1、 TIA STANDARD IP Modem Functional Capabilities Description TIA-157 May 2006 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance NOTICE OF COPYRIGHT This document is copyrighted by the TIA. Reproduction of these d
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16、. i 1 CONTENTS 2 Revision History.iv 3 1 Overview.1 4 1.1 Objectives1 5 1.2 Scope.1 6 1.3 Document Organization.1 7 1.4 References.2 8 1.5 Abbreviations, Definitions and Symbols.3 9 1.5.1 Abbreviations and Acronyms3 10 1.5.2 Definitions.4 11 2 System Architecture6 12 2.1 System Overview.6 13 2.2 IP
17、Modem Functional Overview.8 14 2.3 DoD Deployment Scenario and Information Assurance Architecture9 15 2.3.1 DoD Deployment Scenario9 16 2.3.2 Information Assurance Architecture.10 17 2.3.3 Compliance with Standards.10 18 2.4 Blockage Mitigation (optional).10 19 2.5 Software Communications Architectu
18、re (SCA) Compliance11 20 2.6 Interoperability of Network Terminals11 21 3 Mesh IP Modem Functional Capabilities12 22 3.1 General12 23 3.1.1 Satellite Systems12 24 3.1.2 Network Topology.12 25 3.1.3 Number of Modems in a Network. 12 26 3.1.4 Number of Carriers in a Network12 27 3.1.5 Number of Transm
19、it Carriers12 28 3.1.6 Number of Receive Carriers12 29 3.1.7 Burst Mode12 30 3.1.8 Multibeam13 31 3.1.9 Synchronization.13 32 3.1.10 Timing Acquisition13 33 3.2 IF/RF Interface13 34 3.2.1 IF Interface13 35 3.2.2 Modulation13 36 3.2.3 Forward Error Correction13 37 3.2.4 User Information Rate.13 38 3.
20、2.5 Transmission Rate.14 39 3.2.6 Symmetry14 40 3.3 Terrestrial Network Interface14 41 3.3.1 Network Interface14 42 3.3.2 IP Packet or Ethernet Frame Processing 14 43 3.3.3 Ethernet Frame Processing14 44 3.3.4 IP Packet Processing15 45 3.3.4.2 IP Encapsulation15 46 ii 3.4 QoS Support16 1 3.4.1 MLPP
21、Support.16 2 3.4.2 QoS Policies16 3 3.5 Control and Management16 4 3.5.1 DAMA.16 5 3.5.2 DAMA Signaling.16 6 3.5.3 Resource Requests.17 7 3.5.4 NCT Resource Allocation.17 8 3.5.5 Dynamic Coding and Modulation (DCM).17 9 3.5.6 Dynamic Rate Adaptation.17 10 3.5.7 Power Control17 11 3.5.8 Network Manag
22、ement.17 12 3.5.9 Network Management Protocol.18 13 3.5.10 Reprogrammability18 14 3.6 Security18 15 3.6.1 Control and Management18 16 3.6.2 Mission User Traffic19 17 3.6.3 TRANSEC Cover19 18 3.7 Timing.19 19 4 Hub-Spoke IP Modem Functional Capabilities.20 20 4.1 General20 21 4.1.1 Satellite Systems2
23、0 22 4.1.2 Network Topology.20 23 4.1.3 Number of Terminal Modems in a Network.20 24 4.1.4 Number of Carriers in a Network20 25 4.1.5 Number of Transmit Carriers20 26 4.1.6 Number of Receive Carriers20 27 4.1.7 Burst Mode21 28 4.1.8 Multibeam21 29 4.1.9 Synchronization.21 30 4.1.10 Time Acquisition.
24、21 31 4.2 IF/RF Interface21 32 4.2.1 IF Interface21 33 4.2.2 Modulation21 34 4.2.3 Forward Error Correction21 35 4.2.4 User Information Rate.21 36 4.2.5 Transmission Rate.21 37 4.2.6 Symmetry21 38 4.3 Terrestrial Network Interface22 39 4.3.1 Network Interface22 40 4.3.2 Ethernet Frame Processing22 4
25、1 4.3.3 IP Services.22 42 4.4 QoS Support22 43 4.5 Control and Management22 44 4.6 Security22 45 5 Point-to-Point IP Modem Functional Capabilities23 46 5.1 General23 47 5.2 IF/RF Interface23 48 5.3 Terrestrial Network Interface23 49 iii 5.3.1 Network Interface23 1 5.3.2 Ethernet frame Frame Processi
26、ng23 2 5.3.3 IP Services.23 3 5.4 QoS Support23 4 5.5 Control and Management23 5 5.6 Security24 6 7 8 9 FIGURES 10 Figure 2-1: Mesh Network Topology.6 11 Figure 2-2: Hub-spoke Network Topology7 12 Figure 2-3: Point-to-point Network Topology.8 13 Figure 2-4: IP Modem Protocol Architecture.8 14 Figure
27、 2-5: Scenario for Network Reachback9 15 Figure 2-6: Information Assurance Architecture10 16 17 18 TABLES 19 Table 1: Example of SNMP Traps.18 20 21 22 iv REVISION HISTORY 1 Date Revision Number Comments Dec 1, 2003 Version 0.1 Dec 9, 2003 Version 0.2 Jan. 16, 2004 Version 0.3 Feb. 9, 2004 Version 0
28、.4 March 15,2004 Version 1.0 April 9, 2004 Version 1.3 April 15, 2004 Version 1.5 May 6,2004 Version 1.6 June 15, 2004 Version 1.7 June 21, 2004 Version 1.8 July 2, 2004 Version 2.0 July 21, 2004 Version 2.1 October 20, 2004 Version 2.3 Distribution was incorrectly labeled v3.0 October 29, 2004 Vers
29、ion 2.4 November 19, 2004 Version 2.5 1 1 OVERVIEW 1 1.1 Objectives 2 This document describes the functional capabilities of packet based Internet 3 Protocol (IP) modems operating over transponded satellite systems. It is 4 intended to facilitate the development of an open standard for equipment 5 p
30、roduction, and to provide basic functional requirements that can be used for 6 development of a more detailed standard for these modems. 7 1.2 Scope 8 The implementation of efficient techniques that utilize multiaccess, packet-based 9 Internet Protocol (IP) services over transponded satellite channe
31、ls will increase 10 capabilities in the near term and provide an evolutionary path for the transition 11 from current satellite communications (SATCOM) systems to the 12 Transformational Communications capabilities in the future. This document 13 provides the minimum set of functional capabilities t
32、hat ensure interoperability 14 among modems supporting IP services required to achieve this goal. Functional 15 capabilities are described for IP modems to support the following network 16 topologies: 17 1. mesh 18 2. hub-spoke 19 3. point-to-point. 20 A particular IP modem implementation needs to s
33、upport only the subset of these 21 topologies and transmission modes that are needed for its intended application. 22 However, the intent is to define these capabilities synergistically so that a single 23 IP modem design could support all of the network topologies and transmission 24 modes (burst o
34、r continuous). The functional capabilities pertain to the 25 standardization of a set of air interfaces and supporting waveforms, a set of 26 terrestrial network interfaces, logical channel structures, control and management 27 interfaces, and protocols. 28 1.3 Document Organization 29 This document
35、 is organized into five sections and an appendix. Section 1 30 presents an overview of the document. Section 2 describes the system 31 architecture of networks that utilize IP modems to provide IP layer connectivity. 32 Sections 3, 4, and 5 describe detailed IP modem functional capabilities to suppo
36、rt 33 different connectivity topologies and access modes. 34 2 1.4 References 1 1 ETSI EN 302 307, v1.1.1 (2004-06), DVB: Second generation framing 2 structure, channel coding and modulation systems for Broadcasting, Interactive 3 Services, News Gathering and other broadband satellite applications.
37、4 2 ETSI EN 301 790 V1.4.1 (2003-03), DVB: Interaction channel for 5 satellite distribution systems 6 3 ETSI EN 300 421: DVB: Framing Structure, Channel Coding, and 7 Modulation for 11/12 GHZ Satellite Services 8 4 ETSI EN 301 192: Digital Video Broadcasting: DVB Specification for 9 data broadcastin
38、g 10 5 TIA-1008: IP over Satellite (IPoS), 2003 11 6 American National Standards Institute, “Telecommunications - 12 Integrated Services Digital Network (ISDN) - Multi-Level Precedence and 13 Preemption (MLPP) Service Capability“, ANSI T1.619-1992 (R1999), 1992. 14 7 International Telecommunications
39、 Union, “Multilevel Precedence and 15 Preemption Service (MLPP)“, ITU-T Recommendation I.255.3, 1990. 16 8 MIL-STD-188-165A: Interoperability and Performance Standards for 17 SHF Satellite Communications PSK Modems (FDMA Operation), August 2001. 18 9 ITU-T G.7041/Y.1303: Generic framing procedure (G
40、FP), Dec. 2003 19 10 MSRC-5000SCA: Software Communications Architecture Specification, 20 Ver. 2.2, Nov. 2001 21 11 MSRC-5000API: Application Program Interface Supplement to the SCA 22 Specification, Ver. 1.1, Nov. 2001 23 12 MSRC-5000SEC: Security Supplement to the SCA Specification, Ver. 24 1.1, N
41、ov. 2001 25 13 Space Communications Protocol Standards (SCPS): Transport 26 Protocol, MIL-STD-2045-44000, CCSDS 714.0-B ISO 15893. 27 14 RFC 3246 - An Expedited Forwarding PHB (Per-Hop Behavior), B. Davie, 28 et. al., Internet Engineering Task Force (IETF), March 2002. 29 15 RFC 2597 Assured Forward
42、ing PHB Group, J. Heinanen, et. al., Internet 30 Engineering Task Force (IETF), June 1999. 31 3 1 1.5 Abbreviations, Definitions and Symbols 2 3 1.5.1 Abbreviations and Acronyms 4 For the purposes of the present document, the following abbreviations and 5 acronyms apply: 6 7 AF Assured Forwarding AI
43、SR Airborne Intelligence, Surveillance, and Reconnaissance API Application Program Interface ARQ Automatic Repeat Request BoD/DAMA Bandwidth on Demand /Demand Assigned Multiple Access COMSEC Communications Security CONOPS Network Concept of Operations CORBA Common Object Request Broker Architecture
44、CoS Class of Service COTH Communications-on-the Halt COTM Communications-on-the Move COTP Communications-on-the Pause CPG Contingency Planning Guidance DAMA Demand Assigned Multiple Access DCM Dynamic Coding Modulation DISN Defense Information System Network DNS Domain Name System DoD Department of
45、Defense DPG Defense Planning Guidiance DSCP Differentiated Services Code Points DSCS Defense Satellite Communicationss System DTS Diplomatic Telecommunications System DVB Digital Video Broadcast EF Expediated Forwarding FCD Functional Capabilities Description FCS Future Combat Systems FDMA Frequency
46、 Division Multiple Access FEC Forward Error Correction GBS Global Broadcast Service GFP Generic Framing Protocol GIG Global Information Grid GPS Global Positioning System HAIPE High Assurance Internet Protocol Encrypter IF Intermediate Frequency IP Internet Protocol JTRS Joint Tactical Radio System
47、LAN Local Area Network MF-TDMA Multi-Frequency Time Division Multiple Access 4 MIST Multiband Integrated Satellite Terminal MLPP Multi Level Precedence and Preemption NCR Network Clock Reference NCT Network Control Terminal NMS Network Management Services NSA National Security Agency NT Network Term
48、inal OE Operating Environment PEP Performance Enhancement Proxy PHB Per Hop Behavior PM Program Manager POSIX Portable Operating System Interface QoS Quality of Service RF Radio Frequency RTP Real Time Protocol SATCOM Satellite Communications SCA Software Communications Architecture SCPC Single Chan
49、nel per Carrier SCPS Space Communications Protocol Standards SDB SATCOM Data Base SIS Satellite Signal-in-Space SNMP Simple Network Management Protocol TCA Transformational Communications Architecture TCP Transmission Control Protocol TDM Time Division Multiplex TDMA Time Division Multipe Access TRANSEC Transmission Security TRI Tri-Service Institute UDP User Datagram Protocol WAN Wide Area Network 1 1.5.2 Definitions 2 For the purposes of the present document, the following terms and definitions 3 apply: 4 Access network: A satellit
