TIA-1088-2006 IP over Satellite (IPOS)《卫星IP(IPOS)》.pdf

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1、 TIA STANDARD SMCP: Satellite Network Modem System (SNMS) Mesh Control Protocol TIA-1088 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. R

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16、THOUT SUCH LIMITATIONS. iiiTable of Contents Table of Figures v References. vi Acronyms. vii 1 Background and Scope. 1 Mesh transparent network. 1 1.1 Organization of this Document and Relation of its Elements. 2 2 Overview 3 3 State Diagrams, Timers and Counters 5 3.1 Introduction. 5 3.1.1 Timers .

17、 6 RCST Timers 6 NCC Timers 6 3.1.2 Message Retransmission Counters . 7 RCST Message Retransmission Counters 7 NCC Message Retransmission Counters 7 3.2 Calling RCST State Diagram 8 3.3 NCC State Diagram 11 3.4 Called RCST State Diagram . 14 4 Protocol Procedures 17 4.1 Connection Setup Signaling 17

18、 4.1.1 Successful Setup . 17 4.1.2 Successful Setup Calling RCST Retry. 18 4.1.3 Successful Setup NCC Retry . 19 4.1.4 Successful Setup Called RCST Retry 20 4.1.5 Unsuccessful Setup Called RCST Not Responding. 20 4.1.6 Unsuccessful Setup Rejected by NCC. 21 4.1.7 Unsuccessful Setup Rejected by Calle

19、d RCST 22 4.1.8 Unsuccessful Setup Release from Calling RCST 22 4.1.9 Unsuccessful Setup Release from Called RCST . 23 4.1.10 Unsuccessful Setup NCC Reject after RCST Accept 23 4.2 Connection Rate (or other Profile) Change Signaling 24 4.2.1 Successful Rate Change 24 4.2.2 Successful Rate Change NCC

20、 Retry 25 4.2.3 Successful Rate Change Calling RCST Retry . 25 4.2.4 Successful Rate Change Called RCST Retry. 26 4.2.5 Unsuccessful Rate Change Rejection Scenarios 27 4.2.6 Successful Multiple Outstanding Rate Change Requests . 28 4.2.7 RCST Initiated Connection Release . 28 4.2.8 RCST Initiated Co

21、nnection Release Timeout at NCC. 29 4.2.9 RCST Initiated Connection Release Timeout at RCST. 29 4.2.10 NCC Initiated Connection Release . 30 4.2.11 NCC Initiated Connection Release Timeout at NCC 31 4.2.12 Unexpected Release Requests. 31 iv4.3 Status Inquiry Signaling 31 5 Connection Control message

22、s formatting. 32 5.1 RCST to NCC messages . 32 5.1.1 DULM format . 32 5.1.1.1 Message Header IE . 35 5.1.1.2 Cause IE 36 5.1.1.3 Channel_ID IE 37 5.1.1.4 Route_ID IE 37 5.1.1.5 Source/Destination address IEs. 37 5.1.1.6 Forward/Return stream Identifier IEs . 38 5.1.1.7 Connection Type IE 38 5.1.1.8

23、Forward/Return profiles IEs . 39 5.2 NCC to RCST messages . 40 5.2.1 TIMu format 40 6 Messages 42 6.1 Point-to-point connection establishment messages 42 6.1.1 CnxEstReq (Connection Establishment Request). 42 6.1.2 CnxEstResp (Connection Establishment Response). 43 6.2 Connection release messages 45

24、 6.2.1 CnxRelReq (Connection Release Request) 45 6.2.2 CnxRelResp (Connection Release Response) 45 6.3 Connection modify messages . 45 6.3.1 CnxModifyReq / Profile (Connection Modify Request) 46 6.3.2 CnxModifyResp / Profile (Connection Modify Response) 46 6.4 Channel modify messages. 47 6.4.1 ChnMo

25、difyReq (Channel modify request) . 47 6.4.2 ChnModifyResp (Channel modify response) . 48 6.5 Status Enquiry Message (NCC to RCST). 49 Appendix A Message Equivalencies between RSM-A and RSM-B Messages and Protocols 1 vTable of Figures Figure 1 Mesh Transparent Network . 2 Figure 2 Calling RCST State

26、Diagram 8 Figure 3 NCC State Diagram . 11 Figure 4 Called RCST State Diagram . 14 Figure 5 Successful Setup . 17 Figure 6 Successful Setup (with Origin Retry) . 18 Figure 7 Successful Setup (with NCC Retry) 19 Figure 8 Successful Setup (with Called RCST Retry . 20 Figure 9 Unsuccessful Setup (Called

27、 ST Not Responding) 21 Figure 10 Unsuccessful Setup Connection Rejected by NCC. 21 Figure 11 Unsuccessful Setup Connection Rejected by Called RCST. 22 Figure 12 Unsuccessful Setup Release from Calling RCST 22 Figure 13 Unsuccessful Setup Release from Called RCST . 23 Figure 14 Unsuccessful Setup NCC

28、 Reject after RCST Accept. 23 Figure 15 Successful Rate Change . 24 Figure 16 Successful Rate Change (NCC Retry) 25 Figure 17 Successful Rate Change (Calling RCST Retry). 26 Figure 18 Successful Rate Change (called RCST retry) 26 Figure 19 Unsuccessful RateChange Rejected by NCC 27 Figure 20 Unsucce

29、ssful Rate Change Rejected by Called RCST. 27 Figure 21 RCST Initiated Release 28 Figure 22 RCST Initiated Release Timeout at NCC . 29 Figure 23 RCST Initiated Release Timeout at RCST . 29 Figure 24 NCC Initiated Release 30 Figure 25 NCC Initiated Release Timeout at NCC . 31 Figure 26 DULM message w

30、ith ATM TRF bursts . 34 viReferences 1. IP Modem Functional Capabilities Description (FCD), TIA/EIA-157, Version 2.6, 13 Jan 2005. 2. SNMS General Requirements, TIA-1073-000, 6/20/2005. 3. Final Draft Digital Video Broadcasting (DVB); Interaction Channel for Satellite Distribution Systems, ETSI EN 3

31、01 790 v1.4.1 (2005-04). 4. Digital Video Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications, ETSI EN 302 307 v1.1.1 (2004-06). 5. Digital Video Broadcasting

32、(DVB); Framing structure, channel coding and modulation for 11/12 GHz satellite services, ETSI EN 300 421. 6. “An IP-based satellite communication system architecture for interactive multimedia services,” N. Iuoras, T. Le-Ngoc, M. Ashour and T. Elshabrawy, International Journal of Satellite Communic

33、ations and Networking, 2003; 21:401-426. 7. Digital Video Broadcasting (DVB); Interaction Channel for Satellite Distribution Systems, Guidelines for use of EN 301 790, ETSI TR 101 790. 8. ITU-T Recommendation Z.100 (08/2002), Specification and Description Language (SDL). 9. ITU-T Recommendation Z.12

34、0 (04/2004), Message Sequence Chart (MSC). 10. Annex J: Example Connection Control Protocol, DVB-RCS TM-RCS0586. 11. Connection Control Protocol (C2P), DVB-RCS TM-RCS0550, Alcatel, 4/2/2005. So called RSM-B protocol. 12. RSM-A Connection Control Protocol, Hughes Network Systems (HNS). viiAcronyms Ta

35、ble i Table of Acronyms and Abreviations Acronym Description AAL ATM Adaptation Layer ACM Adaptive Coding and Modulation ARP Address Resolution Protocol ATM Asynchronous Transfer Mode AVBDC Absolute Volume Based Dynamic Capacity BER Bit Error Rate BUC Block Up-Converter CCM Constant Coding and Modul

36、ation CCP (or C2P) Connection Control Protocol CMT Correction Message Table COS Class of Service CRA Continuous Rate Assignment CRSC Circular Recursive Systematic Convolutional CSC Common Signaling Channel (Burst) DAMA Demand Assignment Multiple Access DHCP Dynamic Host Configuration Protocol DiffSe

37、rv Differentiated Services for IP QoS DULM Data Unit Labeling Method DVB Digital Video Broadcast DVB-S Digital Video Broadcast via Satellite DVB-ASI Digital Video Broadcast-Asynchronous Serial Interface DVB-MPE DVB Multi-Protocol Encapsulation DVB-RCS DVB-Return Channel via Satellite FCA Free Capaci

38、ty Assignment FCT Frame Composition Table FEC Forward Error Correction FLS Forward Link Signaling viiiFTP File Transfer Protocol ICMP Internet Control Message Protocol IGMP Internet Group Management Protocol IP Internet Protocol LSB Least Significant Bit MAC Address Media Access Control Address MF-T

39、DMA Multi-Frequency Time Division Multiple Access MPE Multi-Protocol Encapsulation MPEG Moving Picture Experts Group MPEG-2 Standard for compression and framing, from the MPEG MPEG2-TS MPEG-2 Transport Stream Data Unit MSB Most Significant Bit NAT Network Address Translation NCC Network Control Cent

40、er NCR Network Clock Reference NIT Network Information Table PCR Program Clock Reference PDU Protocol Data Unit PEP Protocol Enhancement Proxy PID Program Identifier or Packet Identifier PSI Program Specific Information RS Reed-Solomon Forward Error Correction mechanism QPSK Quaternary Phase Shift K

41、eying Modulation Technique QoS Quality of Service RBDC Rate-Based Dynamic Capacity RCS Return Channel via Satellite RCST Return Channel Satellite Terminal REF Reference Burst RIP Routing Information Protocol SAC Satellite Access Control SI Service Information SMCP SNMS Mesh Control Protocol ixSNMP S

42、imple Network Management Protocol SNMS Satellite Network Modem System SPT Super-frame Composition Table SYNC Synchronization Burst TBD To Be Determined TBR To Be Reviewed TBS To Be Specified TBTP Terminal Burst Time Plan TCP/IP Transmission Control Protocol for Internet Protocol TCT Timeslot Composi

43、tion Table TDMA Time Division Multiple Access TDM Time Division Multiplexing TIM Terminal Information Message (Table) TIMu TIM unicast TRF Traffic Burst (MPEG2-TS or ATM format) TS Transport Stream UDP/IP User Datagram Protocol/Internet Protocol uimsbf Unsigned integer most significant bit first VBD

44、C Volume-Based Dynamic Capacity VCI Virtual Circuit Identifier VCM Variable Coding and Modulation VPI Virtual Path Identifier 11 Background and Scope When a network employing SNMS modems is configured solely in a hub-spoke configuration, the management and control of network connectivity is centrali

45、zed at the hub, the link layer connections are structurally well-defined, and routing for the network layer is also well-defined. Extension of the SNMS requirements standard to mesh overlay configurations requires development and definition of a broader set of procedures and protocols for connection

46、 control. The need for a connection protocol framework specific to DVB-RCS was identified some time ago in ETSI and DVB groups, and is in the process of being prototyped in the IBIS/AmerHis network. Another similar connection protocol also was developed by a TIA member company for a processed satell

47、ite system. The ETSI/DVB C2P Ref. 10 addresses both regenerative and transponded (transparent) networks, and allows for multipoint/multicast connections. The SNMS is intended only for transponded use. In this document, only unicast (point-to-point) connections will be considered. This document has b

48、een developed using inputs from both ETSI/DVB and TIA member companies . The following terminology equivalencies should be noted: NOCC = NCC (usually located at the hub or Gateway/GW) ST = RCST C2P = CCP = SMCP Mesh transparent network This network is based on an architecture that supports Hub-spoke

49、 and Peer-to-Peer communications using a transparent/transponded satellite. The Hub shall have the capability to transmit DVB/S2 and receive the return channel of DVB-RCS. Similarly, the RCSTs shall have the capability to receive the DVB/S2 signal transmitted by the Hub. In addition, some or all of the RCSTs will have an optional capability to receive DVB-RCS, thus obtaining mesh connectivity. The mesh network is therefore an overlay to the star (or hub-spoke) DVB-RCS ne