ETSI TR 102 603 V1.1.1 (2009-01)

ETSI TR 102 603 V1.1.1 (2009-01)
Technical Report


Satellite Earth Stations and Systems (SES);
Broadband Satellite Multimedia (BSM);
Connection Control Protocol (C2P) for DVB-RCS;
Background Information

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2 ETSI TR 102 603 V1.1.1 (2009-01)



Reference
DTR/SES-00295
Keywords
broadband, DVB, multimedia, satellite
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3 ETSI TR 102 603 V1.1.1 (2009-01)
Contents
Intellectual Property Rights . 5
Foreword . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 10
4 DVB-RCS Network Reference Scenarios . 13
4.1 Transparent Satellite Network . 13
4.1.1 Star Transparent . 14
4.1.1.1 Mobility Impact/Continuous Carrier Return Link . 15
4.1.1.2 Single Beam . 15
4.1.1.3 Multi Beam . 16
4.1.2 Mesh Transparent . 16
4.1.2.1 Single Beam . 17
4.1.2.2 Multi Beam . 18
4.2 Regenerative Satellite Network . 18
4.2.1 Star/Mesh Regenerative . 18
4.2.1.1 Single Beam . 20
4.2.1.2 Multi Beam . 22
5 Definitions of C2P Core Elements . . 22
5.1 Channels . 22
5.1.1 Use of Channels for Connectivity . 23
5.1.1.1 Connectivity Channels in the Case of Continuous Carrier Return Links . 23
5.1.2 Use of Channels for QoS . 24
5.2 Route and Route_ID . 24
5.3 IP flows . 24
5.4 Connections and streams . 25
5.4.1 Connections . 25
5.4.1.1 Definition . 25
5.4.1.2 The Class of Service of a Connection . 27
5.4.1.3 Connections in the Context of Continuous Carriers Return Links . 28
5.4.1.4 Connections in the Context of Regenerative Satellite Systems . 29
5.4.2 Streams . 29
5.4.3 Connection Types . 31
5.4.3.1 Star and Mesh Connections . 31
5.4.3.2 Signalling and Traffic Connections . 31
5.4.3.2.1 Signalling Connections . 31
5.4.3.2.2 Traffic Connections . 32
5.4.3.3 NCC Initiated and RCST Initiated Traffic Connections . 32
5.4.3.4 Unicast and Multicast Traffic Connections . 33
5.4.3.5 Unidirectional and Bidirectional (Duplex) Traffic Connections . 33
5.4.4 C2P Connection profile . 34
6 Channel/Connection/Flow Models . 35
6.1 General Model . 35
6.1.1 General Model for Beam-Centric Channels . 35
6.1.2 General Model for RCST-Centric Channels . 39
6.1.3 Cardinality Between C2P Elements . 40
6.2 Particular Models . 43
6.2.1 Model for Mesh/Star Regenerative Networks (RSM-B Example) . 43
6.2.2 Model for Mesh Transparent Networks . 45
ETSI

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4 ETSI TR 102 603 V1.1.1 (2009-01)
6.2.2.1 Single Beam . 46
6.2.2.2 Multiple Beam . 48
6.2.3 Model for Star Transparent Networks . 48
7 C2P Network Interworking Aspects . 49
7.1 C2P Triggers . 49
7.2 C2P/QoS/Resource Control Interactions . 50
7.2.1 C2P QoS Models . 50
7.2.1.1 Return Link C2P QoS Model . 50
7.2.1.2 Approach to Forward Link QoS Provisioning. 54
7.2.2 Required Configuration Parameters at IP and MAC Layers . 54
7.2.2.1 General . 54
7.2.2.2 IP Forwarding/Behavioural Rules . 55
7.2.2.3 C2P-Related Configuration Parameters . 55
7.2.3 RCST Data Structures for Dynamic Connectivity . 58
7.2.3.1 Overview . 58
7.2.3.2 Packet Classification Table . 59
7.2.3.3 Connection Profile Mapping Table . 62
7.2.3.4 Active Connection Table . 63
7.2.3.5 PHB/CoS Mapping Table . 66
7.2.3.6 Request Class Table . 67
7.2.3.7 Table Linkage Mechanism for Dynamic Connectivity/RCST Behaviour . 68
7.3 IP Addressing and Routing . 70
7.4 Multicasting . 71
7.4.1 Overview . 71
7.4.2 IGMPv2 Satellite Adaptation . 73
7.4.3 C2P - IP Multicasting by IGMP . 73
Annex A (informative): EN 301 790 mesh networking adaptations. 78
A.1 New clause on Dynamic Connectivity . 78
A.2 Amendments to Common Signalling Channel (CSC) burst format . 79
A.3 Amendments SAC field composition . 80
A.4 Information Elements (IEs) Range . 83
A.5 Mesh Logon Initialize Descriptor . 86
A.6 Network Layer Information Descriptor (NLID) usage. 89
A.7 Timeslot Composition Table (TCT) . 89
A.8 TBTP . 89
A.9 Implementation type descriptor . 90
History . 95

ETSI

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5 ETSI TR 102 603 V1.1.1 (2009-01)
Intellectual Property Rights
IPRs essential or potentially essential to 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 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 given 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 Report (TR) has been produced by ETSI Technical Committee Satellite Earth Stations and Systems
(SES).
ETSI

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6 ETSI TR 102 603 V1.1.1 (2009-01)
1 Scope
The present BSM document provides background information for the specification of a Connection Control Protocol
(C2P) for DVB-RCS networks [i.11], relying on specific DVB-RCS signalling.
C2P (and any other connection control protocol) is part of the control plane functionality and is generally used to
establish connections with adequate resources in order to satisfy the service requirements of various multimedia
applications. In this context, it can be seen as one component of the QoS end-to-end architecture, e.g. as defined in [i.3].
Recommendations for QoS specifications for DVB-RCS networks have been proposed by the SatLabs Group [i.4]; they
will be considered in the definition of C2P. Moreover, SatLabs Group has also provided recommendations for the
Harmonized Management and Control Plane Specifications in DVB-RCS networks [i.7]; some of the specified data
structures (with enhancements) will be used in the definition of C2P specification [i.11].
To facilitate the definition of C2P, the present document provides and overview of the following aspects:
• Reference scenarios for DVB-RCS networks.
• C2P core elements and their inter-relationships, captured in various C2P models.
• Internetworking issues relevant to C2P, including the QoS models adopted for C2P and various terminal data
structures (tables) for dynamic connectivity support.
The intension is to identify those elements common to all network reference scenarios, in order to define a basic
framework for the specification of a connection protocol applicable to all scenarios.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
Not applicable.
ETSI

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7 ETSI TR 102 603 V1.1.1 (2009-01)
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] ETSI EN 301 790 (V1.4.1): "Digital Video Broadcasting (DVB); Interaction channel for satellite
distribution systems".
[i.2] DVB-RCS 305 (06/03/01): Final Report of the AHG-RSAT Group.
[i.3] ETSI TS 102 462 (V1.1.1): "Satellite Earth Stations and Systems (SES); Broadband Satellite
Multimedia (BSM); QoS Functional Architecture".
[i.4] SatLabs System Recommendations - Quality of Service Specifications, v1.
NOTE: Available at satlabs.org.
[i.5] ETSI EN 300 421: "Digital Video Broadcasting (DVB): Framing structure, channel coding and
modulation for 11/12 GHz satellite services".
[i.6] ETSI EN 302 307 (V1.1.1): "Digital Video Broadcasting (DVB); Second generation framing
structure, channel coding and modulation systems for Broadcasting, Interactive Services, News
Gathering and other broadband satellite applications".
[i.7] SatLabs System Recommendations - Management & Control Planes Specifications, v1.
NOTE: Available at satlabs.org.
[i.8] ETSI TS 102 429-1 (V1.1.1): "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 1: System overview".
[i.9] ETSI TS 102 293 (V1.1.1): "Satellite Earth Stations and Systems (SES); Broadband Satellite
Multimedia (BSM) services and architectures; IP Interworking over satellite; Multicast group
management; IGMP adaptation".
[i.10] ETSI TS 102 294 (V1.1.1): "Satellite Earth Stations and Systems (SES); Broadband Satellite
Multimedia (BSM) services and architectures; IP interworking via satellite; Multicast functional
architecture".
[i.11] ETSI TS 102 602 (V1.1.1): "Satellite Earth Stations and Systems (SES); Broadband Satellite
Multimedia; Connection Control Protocol (C2P) for DVB-RCS; Specifications".
[i.12] ETSI EN 301 192 (V1.4.2): "Digital Video Broadcasting (DVB); DVB specification for data
broadcasting".
[i.13] ETSI TS 102 606 (V1.1.1): "Digital Video Broadcasting (DVB); Generic Stream
Encapsulation (GSE) Protocol".
[i.14] IETF RFC 2474: "Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6
Headers".
[i.15] IETF RFC 2475: " An Architecture for Differentiated Service".
[i.16] IETF RFC 1633: "Integrated Services in the Internet Architecture: an Overview".
[i.17] IETF RFC 2212: "Specification of Guaranteed Quality of Service".
[i.18] IETF RFC 2215: "General Characterization Parameters for Integrated Service Network Elements".
[i.19] IETF RFC 2205: "Resource ReSerVation Protocol (RSVP) -- Version 1 Functional Specification".
[i.20] IETF RFC 4609: "Protocol Independent Multicast - Sparse Mode (PIM-SM) Multicast Routing
Security Issues and Enhancements".
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8 ETSI TR 102 603 V1.1.1 (2009-01)
[i.21] IETF RFC 826: "Ethernet Address Resolution Protocol: Or Converting Network Protocol
Addressed to 48.bit Ethernet Address for Transmission on Ethernet Hardware".
[i.22] IETF RFC 2237: "Japanese Character Encoding for Internet Messages".
[i.23] IETF RFC 4080: "Next Steps in Signalling (NSIS): Framework".
[i.24] IETF RFC 2362: "Protocol Independent Multicast-Sparse Mode (PIM-SM): Protocol
Specification".
[i.25] IETF RFC 2236: "Internet Group Management Protocol version 2 (IGMPv2)".
[i.26] IETF RFC 3376: "Internet Group Management Protocol version 3 (IGMPv3)".
[i.27] AmerHis System, Interactive Broadband DVB-RCS/S OBP Communication System.
NOTE: Available at telecom.esa.int.
[i.28] SkyplexNet System.
NOTE: Available at telecom.esa.int.
[i.29] SpaceMux.
NOTE: Available at space.gc.ca or telesat.ca.
[i.30] B. Le Stradic, M. Vaissiere, 0. Bowles, Matra Marconi Space, United Kingdom "The WEST
Project: exploiting the Ka-band spectrum to develop the Global Information Infrastructure"
September 15 - 18, 1997 Sorrento, Italy, 3rd Ka-Band Utilization Conference.
[i.31] IETF RFC 2774: "An HTTP Extension Framework".
[i.32] IETF RFC 2211: "Specification of the Controlled-Load Network Element Service".
[i.33] IETF RFC 2597: "Assured Forwarding PHB Group".
[i.34] IETF RFC 3246: "An Expedited Forwarding PHB (Per-Hop Behavior)".
[i.35] ETSI TR 101 790 (V1.3.1): "Digital Video Broadcasting (DVB); Interaction channel for satellite
distribution systems; Guidelines for the use of EN 301 790".
[i.36] IETF RFC 1518: " An Architecture for IP Address Allocation with CIDR".
[i.37] IETF RFC 1519: "Classless Inter-Domain Routing (CIDR); an Address Assignment and
Aggregation Strategy".
[i.38] ITU-T Recommendation Q.2931: "Digital Subscriber Signalling System No. 2 - User-Network
Interface (UNI) layer 3 specification for basic call/connection control; Modified by ITU-T Q.2971
(10/1995)".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply.
Class of Service (CoS): specific behaviour regarding traffic handling/forwarding
NOTE: Can be used to categorize the traffic into different classes.
connection: layer 2 logical association between two or more network entities characterized by a C2P Class of Service
(C2P CoS)
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9 ETSI TR 102 603 V1.1.1 (2009-01)
Connection Control Protocol (C2P): protocol that provides the interaction between RCSTs and NCC to support the
set-up, modification and release of connections
control plane: the control plane in a layered protocol architecture; it performs, among others, connection control
functions, including 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): protocol for broadcasting TV signals and, by extension, data over
satellite
gateway: general term to identify both the TSGW and the RSGW
interactive network: group of terminals serviced by an NCC
IP flow: sequence of IP packets from an IP source to an IP destination
NOTE: An IP flow may be identified based on the following attributes: IP source and destination address, layer 4
protocol type, source and destination ports, class of service, router or switch interface.
management plane: in a layered protocol architecture, it provides two types of functions, namely layer management
and plane management functions
Management Station (MS): network element that manages all the elements of the system of one satellite interactive
network (IN); it also controls the sessions, resources and connections of the ground terminals; it is composed of the
NMC and the NCC
mesh connection: direct connection established between two RCSTs
multicast: communication capability, which denotes unidirectional distribution from a single source access point to a
number of specified destination access points
Network Control Centre (NCC): network element that provide real time control of the IN (e.g. session control,
connection control, routing, terminals' access control to satellite resources, etc.)
Network Management Centre (NMC): network element in charge of the management of all the system elements in
the IN
Network Operation Centre (NOC): is responsible for the centralized management and control functions in systems
supporting multiple interactive networks, each controlled by its own NCC; NOC provides service and network
(bandwidth) provisioning to the interactive network, co-ordination between NCCs, etc.
NOTE: In case of single interactive network the NOC and NCC functionality are merged.
On-Board Processor (OBP): router or switch or multiplexer in the sky; it can decouple the uplink and downlink air
interface formats (modulation, coding, framing, etc.)
Quality of Service (QoS): network ability to provide service differentiation/guarantees and thus influence the
perceived quality of communications with regard to a number of parameters (including delay, jitter, packet loss) that
packets sent by the application experience when being transferred by the network
Return Channel Satellite Terminal (RCST): network element that provides the interface between the satellite system
and external users
Regenerative Satellite Gateway (RSGW): network element in a regenerative satellite system that provides
interconnection with terrestrial networks (Internet, ISDN/POTS and Intranet)
star connections: connections involving a gateway (TSGW in a transparent system or RSGW in a regenerative
system).
NOTE: Star connections can involve one hop or double hop.
stream: logical flow of layer 2 data from one network reference point into the satellite network, resulting from the
encapsulation of IP datagrams into MAC packets
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10 ETSI TR 102 603 V1.1.1 (2009-01)
Transparent Satellite Gateway (GW/TSGW): network element in a transparent satellite system that provides
interfaces with terrestrial networks (Internet, ISDN/POTS and Intranet)
NOTE: The GW is typic
...