1、 ETSI TS 102 429-3 V1.1.1 (2006-10)Technical Specification Satellite Earth Stations and Systems (SES);Broadband Satellite Multimedia (BSM);Regenerative Satellite Mesh - B (RSM-B);DVB-S/DVB-RCS family for regenerative satellites;Part 3: Connection control protocolETSI ETSI TS 102 429-3 V1.1.1 (2006-1
2、0) 2 Reference DTS/SES-00241-3 Keywords broadband, DVB, multimedia, satellite ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (
3、06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the refer
4、ence version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or chan
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6、 Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2006. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI regis
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8、0) 3 Contents Intellectual Property Rights5 Foreword.5 1 Scope 6 2 References 6 3 Definitions and abbreviations.7 3.1 Definitions7 3.2 Abbreviations .8 4 Connection Control overview 9 4.1 Protocol description9 4.2 C2P definitions.9 4.2.1 Connection9 4.2.2 IP flow 10 4.2.3 Channel.10 4.2.4 Stream.10
9、4.3 Connection types 11 4.3.1 Control and management connection11 4.3.2 Traffic connection.11 4.3.2.1 Permanent and on_demand connections .11 4.3.2.2 Star and mesh connections 12 4.4 C2P messages.12 4.4.1 Connection profile parameters13 5 Connection Control procedures14 5.1 Point-to-Point connection
10、 establishment 14 5.2 Point-to-Multipoint connection establishment .14 5.3 Point-to-Point connection release.15 5.4 Point-to-Multipoint connection release 15 5.5 Connection modify.15 5.6 Channel modify16 6 Connection Control Message Formatting.16 6.1 RCST to NCC messages.16 6.1.1 DULM format.16 6.1.
11、2 Message Header IE .18 6.1.3 Cause IE19 6.1.4 Channel_ID IE20 6.1.5 Source/Destination address IEs.20 6.1.6 Forward/Return Stream Identifier IEs.20 6.1.7 Connection Type IE21 6.1.8 Forward/Return profiles IEs .21 6.2 NCC to RCST messages.22 6.2.1 TIMu format .22 7 Connection control messages .23 7.
12、1 Point-to-point connection establishment messages 23 7.1.1 CnxEstReq (Connection Establishment Request) Unicast23 7.1.1.1 CnxEstReq RCST initiated unicast connection.23 7.1.1.1.1 From calling RCST to NCC (DULM) .23 7.1.1.1.2 From NCC to called RCST (TIM).24 7.1.1.2 CnxEstReq NCC initiated unicast c
13、onnection.24 7.1.2 CnxEstResp (Connection Establishment Response) Unicast25 7.1.2.1 CnxEstResp RCST initiated unicast connection .25 7.1.2.1.1 From called RCST to NCC (DULM) 25 7.1.2.1.2 From NCC to calling RCST (TIM) .25 7.1.2.2 CnxEstResp NCC initiated unicast connection .26 ETSI ETSI TS 102 429-3
14、 V1.1.1 (2006-10) 4 7.2 Point-to-multipoint connection establishment messages26 7.2.1 CnxEstReq (Connection Establishment Request) Multicast.26 7.2.1.1 CnxEstReq RSGW initiated star multicast connection .26 7.2.1.2 CnxEstReq RCST initiated mesh multicast connection 27 7.2.1.3 CnxEstReq NCC initiated
15、 multicast connection .27 7.2.2 CnxEstResp (Connection Establishment Response) Multicast.28 7.2.2.1 CnxEstResp RSGW initiated star multicast connection28 7.2.2.2 CnxEstResp RCST initiated mesh multicast connection.28 7.2.2.3 CnxEstResp NCC initiated multicast connection29 7.3 Connection release mess
16、ages .29 7.3.1 CnxRelReq (Connection Release Request).29 7.3.2 CnxRelResp (Connection Release Response).30 7.4 Connection Modify messages.30 7.4.1 CnxModifyReq Profile (Connection Modify Request).30 7.4.1.1 From calling RCST to NCC (DULM).30 7.4.1.2 From NCC to called RCST to NCC (TIM) .30 7.4.2 Cnx
17、ModifyResp Profile (Connection Modify Response).31 7.4.3 CnxModifyReq Join (Connection Modify Request) .31 7.4.4 CnxModifyResp Join (Connection Modify Response) .32 7.4.5 CnxModifyReq Leave (Connection Modify Request)32 7.4.6 CnxModifyResp Leave (Connection Modify Response)33 7.5 Channel modify mess
18、ages 33 7.5.1 ChnModifyReq (Channel Modify Request)33 7.5.2 ChnModifyResp (Channel Modify Response)34 Annex A (informative): C2P Messages exchange example .35 A.1 Point to point bi-directional RCST initiated connection 35 A.1.1 CnxEstReq calling RCST to NCC35 A.1.2 CnxEstReq NCC to called RCST .37 A
19、.1.3 CnxEstResp RCST to NCC38 A.1.4 CnxEstResp NCC to calling RCST 39 A.2 Point to multipoint uni-directional RCST initiated connection40 Annex B (informative): Bibliography.41 History 42 ETSI ETSI TS 102 429-3 V1.1.1 (2006-10) 5 Intellectual Property Rights IPRs essential or potentially essential t
20、o the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
21、ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be giv
22、en as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and
23、 Systems (SES). The present document is part 3 of a multi-part deliverable covering the Broadband Satellite Multimedia (BSM) Regenerative Satellite Mesh - B (RSM-B); DVB-S/DVB-RCS family for regenerative satellites, as identified below: Part 1: “System overview“; Part 2: “Satellite Link Control laye
24、r“; Part 3: “Connection control protocol“; Part 4: “Specific Management Information Base“. ETSI ETSI TS 102 429-3 V1.1.1 (2006-10) 6 1 Scope The present document defines the Connection Control Protocol (C2P) used within SES BSM Regenerative Satellite Mesh B (RSM-B) to provide connections in a DVB-RC
25、S network using Type A terminals. The C2P is the protocol used for NCC and RCST communication (N interface) . The information elements used to build the C2P messages are identical to the ones defined in EN 301 790 1 and TR 101 790. The present document includes the definition of the C2P messages and
26、 protocol procedures required to support RSM-B system as a connection oriented network. The aim of the present document is a complement for the DVB-RCS and DVB-S standards defining the NCC and RCST interface to ensure RSM-B interworking with IP multimedia networks and services. SatelliteSatellitepay
27、load(NOCC)MSU I/FSatelliteTerminalSatelliteTerminalTerrestrialHostTerrestrialHostT I/FSatelliteTerminalSatelliteTerminalTerrestrialHostTerrestrialHostU I/FLogical interfacePhysical interfaceT I/FP I/FNMCNCCN I/FM I/F M I/FRCSTRCST /RSGWOBPN I/FO I/FNOTE: See clause 4.1.5 of TS 102 429-1 (see bibliog
28、raphy) for interfaces definition. Figure 1.1: Network architecture 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication and/or edition number or
29、version number) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE:
30、While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 1 ETSI EN 301 790: “Digital Video Broadcasting (DVB); Interaction channel for satellite distribution systems“. ETSI ETSI TS 102 429-3 V1.1.1 (2006-10) 7 2 IETF RFC 1112:
31、 “Host Extensions for IP Multicasting“. 3 ITU-T Recommendation H.222.0: “Information technology - Generic coding of moving pictures and associated audio information: Systems“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in
32、 EN 301 790 1 and the following apply: Connection Control Protocol (C2P): protocol that provides the interaction between RCSTs and NCC to support set-up, modification and release of connections and channel bandwidth modification control plane: the control plane has a layered structure and performs t
33、he connection control functions; it deals with the signalling necessary to set up, supervise and release connections Digital Video Broadcasting Return Channel by Satellite (DVB-RCS): protocol for an interaction (or return) channel in satellite links Digital Video Broadcasting via Satellite (DVB-S):
34、protocol for broadcasting TV signals and by extension data over satellite management plane: plane which provides two types of functions, namely layer management and plane management functions Management Station (MS): controls and manages the RSM-B network and is composed of three elements: - the Net
35、work Control Center (NCC); - the Network Management Center (NMC); - the satellite terminal of the MS (NCC_RCST), which supports the modulation and demodulation functions to access to the satellite. multicast: communication capability, which denotes unidirectional distribution from a single source ac
36、cess point to a number of specified destination, access points Network Control Center (NCC): RSM-B network element which controls the Interactive Network, serves users satellite access, and manages the OBP configuration Network Management Center (NMC): RSM-B network element composed in charge of ele
37、ment management functions and for the network and service provisioning and management On Board Processor (OBP): satellite payload digital processor on-board the satellite that allows MPEG packets switching from up-link to down-link beams in a flexible way Return Channel Satellite Terminal (RCST): lo
38、w cost and high performance RSM-B network element installed in the user premises that provides interfaces with final users and allows its users access to users of others RCSTs or to external users of terrestrial networks through the RSGW, or to services delivered by the Service Provider attached to
39、the RSGW GateWay Return Channel Satellite Terminal (GW_RCST): RSM-B RCST installed inside an RSGW with enhanced properties in routing, IP multicast, connection control and management Regenerative Satellite GateWay (RSGW): RSM-B network element that provides the interface between RSM-B network and ex
40、ternal users of terrestrial networks such as PSTN or ISDN and with external Service Providers NOTE: A Gateway and one or several GW_RCST (Gateway Return Channel Satellite Terminal) compose the RSGW. A Gateway includes all the network elements that will assure the interface with terrestrial networks
41、(e.g. IP router, Voice gateway, Video gateway, Gatekeeper, etc.). ETSI ETSI TS 102 429-3 V1.1.1 (2006-10) 8 Quality of Service (QoS): measure of the parameters of a network that influence perceived quality of communications, including the delay, jitter, bandwidth, and packet loss that packets sent b
42、y the application experience when being transferred by the network user plane: plane which has a layered structure and provides user information on flow transfer, along with associated controls for flow control and recovery from errors 3.2 Abbreviations For the purposes of the present document, the
43、abbreviations given in EN 301 790 1 and the following apply: BE Best Effort BSM Broadband Satellite Multimedia BW BandWidth ChModReq Channel Modify Request ChModResp Channel Modify Response cnx connectionCnxEstReq Connection Establishment Request CnxEstResp Connection Establishment Response CnxRelRe
44、q Connection Release Request CnxRelResp Connection Release Response CRA Constant Rate Assignment CRC Cyclic Redundancy Check DiffServ Internet Differentiated Services DSCP DiffServ Code Point DULM Data Unit Labelling Method DVB Digital Video Broadcasting DVB-RCS Digital Video Broadcast-Return Channe
45、l by Satellite DVB-S Digital Video Broadcasting by Satellite ETSI European Telecommunications Standards Institute fwd forward GRD Guaranteed Rate a low priority connection towards RCST2 is identified by (ch_id-1, PID A-1 LP, MAC address RCST2). ETSI ETSI TS 102 429-3 V1.1.1 (2006-10) 11HP CNX 3HP CN
46、X 1LP CNX 1LP CNX 2LP CNX 1IP Flow 4To RCST 1(MPE MAC 1)IP Flow 3To RCST 3(MPE MAC 3)IP Flow lIP Flow 2CHANNEL_id 1(TDM 1 )LP CNX 2IP Flow 5IP Flow 6To RCST2(MPE MAC 2)LOW PRIORITYBU FFERStr e a m PI D LPIP FLOW IS CLASSIFIED ANDMAPPED ON THECONVENIENT CONNECTIONHP CNX 1HP CNX 3RCST A : SOURCETDM 1S
47、PO TBEAM 1CONNECTIONS CLASSIFIED PER PRIORITYAND AGGREGATED PER CHANNEL_IDGuaranteed DataRate Service(High Priority)Best Effort Service(Low Priority )HIGH PRIORITYBU FFERStream PID HPFigure 4.2: Connection, channel_ID and PIDs arrangement 4.3 Connection types Signaling connections for control and ma
48、nagement messages are differentiated from user data traffic connections. 4.3.1 Control and management connection The communication between the MS (NCC initiated by the RCST (or RSGW): on_demand connections. ETSI ETSI TS 102 429-3 V1.1.1 (2006-10) 12Permanent connection: Established upon NMC initiati
49、ve when the peer terminals are synchronized. Permanent connection establishment and release procedures are performed using C2P . C2P permanent connection establishment/release is initiated by the NCC Connection Control function (when indicated by the NMC) and never released by terminals. On-demand connection: Established upon explicit request from the RCST or RSGW. On-demand connection establishment and release procedures are performed using C2P and are initiated by the RCST or RSGW Connection Control function. 4.3.2.2 Star and mesh connections Traffi
