ETSI TR 103 444 V1.1.1 (2016-12)

Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia (BSM); Guide to Satellite Independent Service Access Point (SI-SAP) use

DTR/SES-00403

General Information

• Status: Published
• Publication Date: 05-Dec-2016
• Technical Committee: SES SCN - Satellite Communications and Navigation
• Current Stage: 12 - Completion
• Due Date: 15-Dec-2016
• Completion Date: 06-Dec-2016

Standards Content (Sample)

ETSI TR 103 444 V1.1.1 (2016-12)






TECHNICAL REPORT
Satellite Earth Stations and Systems (SES);
Broadband Satellite Multimedia (BSM);
Guide to Satellite Independent
Service Access Point (SI-SAP) use

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2 ETSI TR 103 444 V1.1.1 (2016-12)



Reference
DTR/SES-00403
Keywords
BSS, satellite, MSS, protocol, interface

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3 ETSI TR 103 444 V1.1.1 (2016-12)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
Executive summary . 4
Introduction . 4
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions and abbreviations . 9
3.1 Definitions . 9
3.2 Abbreviations . 10
4 ETSI BSM architecture background . 11
4.1 Functional architecture . 11
4.1.1 Main elements . 11
4.1.2 Main functions . 12
4.2 SI-SAP interface . 13
4.3 SI-SAP interface primitives . 14
4.3.1 Terminology . 14
4.3.2 Classification . 15
5 Guide to ETSI BSM architecture functions. 15
5.1 Overview . 15
5.2 Data transfer . 16
5.3 QoS management . 16
5.4 Address resolution . 16
5.5 Multicast management . 16
5.6 Security . 17
5.7 Network integration . 17
5.8 Performance management . 17
5.9 Summary . 18
6 Guide to SI-SAP interface primitives . 18
6.1 Overview . 18
6.2 Logon/logoff . 19
6.3 Satellite Independent (SI) layer configuration . 19
6.4 Address resolution . 19
6.5 Resource reservation . 20
6.6 Multicast group receive and transmit . 20
6.7 Data transfer . 21
6.8 Summary . 21
History . 22


ETSI

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4 ETSI TR 103 444 V1.1.1 (2016-12)
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 (https://ipr.etsi.org/).
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).
Modal verbs terminology
In the present document "should", "should not", "may", "need not", "will", "will not", "can" and "cannot" are to be
interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Executive summary
The present document summarizes the main functions of the ETSI BSM architecture, with special emphasis on the
services offered by Satellite Independent Service Access Point (SI-SAP) interface to the higher protocol layers as well
as the primitives defined to invoke those services. In more detail, the present document provides a guide to the use of
the related ETSI BSM documentation, worked out since year 2001 and updated in year 2015, providing precise pointers
to the ETSI technical specifications (TSes) and reports (TRs), where the ETSI BSM architecture functions and SI-SAP
interface services are defined and specified.
The aim of the present document is illustrate the main functions of the ETSI BSM architecture and the services offered
by the SI-SAP interface.
Introduction
The present document focuses on the ETSI BSM architecture which defines the main actors involved in satellite
communications, including the satellite network itself, external subnetworks, and the related interfaces. In particular, the
ETSI BSM architecture defines a layered architecture separating the satellite dependent (SD, physical and datalink
layers according to ISO/OSI terminology) from the satellite independent (SI, network layer) by means of the Satellite
Independent Service Access Point (SI-SAP) interface, which provides an hardware abstraction layer easing the
implementation of cross-layer mechanisms and interoperability of multi-vendor devices.
The SI-SAP interface can be actually implemented as logical or physical interface. In the former configuration, the SI-
SAP interface extends and adapts the functions already provided by the interface existing between L1 and L2 of the
ISO/OSI protocol stack, hence possibly enabling new services. On the other hand, the latter configuration corresponds
to the case where the SI-SAP interface is actually implemented in two physically separated elements (e.g. a user
terminal and a satellite modem), whereby the defined SI-SAP services can be run by means of a dedicated message
exchange protocol.
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5 ETSI TR 103 444 V1.1.1 (2016-12)
The aforementioned capabilities offered by the SI-SAP interface are defined in terms of specific services that can be
requested by the SI layer to the SD layer, respectively implementing SD and SI adaptation functions (provided namely
by the SDAF and SIAF modules) for this purpose. In particular, the SI-SAP services currently defined deal with control
and user plane functionalities, such as data transfer, address resolution, resource reservation, multicast management,
logon/logoff, and configuration of the satellite independent (SI) layer.
The present document addresses the functions offered by the ETSI BSM architecture and the services implemented by
the SI-SAP interface, illustrating the main characteristics and pointing to the related ETSI BSM literature, so as to offer
a standalone guidance document for satellite system designers and implementers.

ETSI

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6 ETSI TR 103 444 V1.1.1 (2016-12)
1 Scope
The present document provides a guide to ETSI BSM architecture and SI-SAP interface for satellite system designers
and implementers, in terms of pointers to the relevant ETSI BSM literature.
Firstly, the document addresses the functions that are offered by the ETSI BSM architecture, providing the description
of the main features and pointing to the specific TSs and TRs that detail these functions. In more detail, the following
functions are illustrated:
• Data transfer.
• QoS management.
• Address resolution.
• Multicast management.
• Security.
• Network integration.
• Performance management.
Secondly, the document addresses the services that are offered by the SI-SAP interface and are run between the satellite
independent (SI) and satellite dependent (SD) layers. Similarly to the description of the aforementioned ETSI BSM
architecture functions, illustration of the main features is provided along with the pointers to the relevant ETSI BSM
documents where the SI-SAP services are defined, specified, and analysed. The considered SI-SAP interface services
are:
• Logon/logoff.
• Satellite independent layer configuration.
• Address resolution.
• Resource reservation.
• Multicast group receive and transmit.
• Data transfer.
The aim of the present document is to provide a standalone guide to the ETSI BSM standardization track, which is
based on several technical specifications and reports.
2 References
2.1 Normative references
Normative references are not applicable in the present document.
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7 ETSI TR 103 444 V1.1.1 (2016-12)
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI TS 103 275: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Common air interface specification; Satellite Independent Service Access Point (SI-SAP)
interface: Services".
[i.2] ETSI TS 102 856-2: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Multi-Protocol Label Switching (MPLS) interworking over satellite; Part 2: Negotiation
and management of MPLS labels and MPLS signalling with attached networks".
[i.3] ETSI TS 102 856-1: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Multi-Protocol Label Switching (MPLS) interworking over satellite Part 1: MPLS-based
Functional Architecture".
[i.4] ETSI TS 102 855: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Interworking and Integration of BSM in Next Generation Networks (NGNs)".
[i.5] ETSI TR 102 676: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Performance Enhancing Proxies (PEPs)".
[i.6] ETSI TS 102 675-2: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Part 2: Performance Management Information Base".
[i.7] ETSI TS 102 675-1: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Part 1: Performance Management at the SI-SAP".
[i.8] ETSI TS 102 674: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); PIM-SM Adaptation".
[i.9] ETSI TS 102 673: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Performance Parameters".
[i.10] ETSI TS 102 672: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Management Functional Architecture".
[i.11] ETSI TR 102 467: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Transition to IPv06".
[i.12] ETSI TS 102 466: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Multicast Security Architecture".
[i.13] ETSI TS 102 465: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); General Security Architecture".
[i.14] ETSI TS 102 464: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Interworking with DiffServ QoS".
[i.15] ETSI TS 102 463: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Interworking with IntServ QoS".
[i.16] ETSI TS 102 462: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); QoS Functional Architecture".
[i.17] ETSI TS 102 461: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Multicast Source Management".
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8 ETSI TR 103 444 V1.1.1 (2016-12)
[i.18] ETSI TS 102 460: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Address Management at the SI-SAP".
[i.19] ETSI TS 102 357: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Common Air interface specification; Satellite Independent Service Access Point (SI-SAP)
interface: Primitives".
[i.20] ETSI TR 102 353: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Guidelines for the Satellite Independent Service Access Point (SI-SAP)".
[i.21] ETSI TS 102 295: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM) services and architectures; BSM Traffic Classes".
[i.22] ETSI TS 102 294: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM) services and architectures; IP interworking via satellite; Multicast functional architecture".
[i.23] ETSI TS 102 293: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM) services and architectures; IP Interworking over satellite; Multicast group management;
IGMP adaptation".
[i.24] ETSI TS 102 292: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM) services and architectures; Functional architecture for IP interworking with BSM
networks".
[i.25] ETSI TR 102 287: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); IP Interworking over satellite; Security aspects".
[i.26] ETSI TR 102 187: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia;
Overview of BSM families".
[i.27] ETSI TR 102 157: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia;
IP Interworking over satellite; Performance , Availability and Quality of Service".
[i.28] ETSI TR 102 156: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia;
IP interworking over satellite; Multicasting".
[i.29] ETSI TR 102 155: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia;
IP interworking over satellite; Addressing and routing".
[i.30] ETSI TR 101 985: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia;
IP over Satellite".
[i.31] ETSI TR 101 984: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Services and architectures".
[i.32] IETF RFC 4815: "RObust Header Compression (ROHC): Corrections and Clarifications to
RFC 3095".
[i.33] IETF RFC 3261: "SIP: Session Initiation Protocol".
[i.34] IETF RFC 753: "Internet Message Protocol".
[i.35] IETF RFC 793: "Transmission Control Protocol".
[i.36] IETF RFC 768: "User Datagram Protocol".
[i.37] IETF RFC 3135: "Performance Enhancing Proxies Intended to Mitigate Link-Related
Degradations".
[i.38] ISO/IEC 7498-1: "Information Technology - Open Systems Interconnection - Basic Reference
Model: The Basic Model. International Standard".
[i.39] ISO/IEC 10731: "Information Technology - Open Systems Interconnection - Basic Reference
Model-Conventions for the Definition of OSI Services. International Standard".
[i.40] IETF RFC 3376: "Internet Group Management Protocol, Version 3".
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9 ETSI TR 103 444 V1.1.1 (2016-12)
[i.41] IETF RFC 4601: "Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol
Specification (Revised)".
[i.42] IETF RFC 2205: "Resource Reservation Protocol (RSVP) - Version 1 Functional Specification".
[i.43] IETF RFC 3031: "Multiprotocol Label Switching Architecture".
[i.44] IETF RFC 3209: "RSVP-TE Extensions to RSVP for LSP Tunnels".
[i.45] IETF RFC 2460: "Internet Protocol, Version 6 (IPv6) Specification" Deering, S. and R. Hinden.
[i.46] ETSI EN 302 307: "Digital Video Broadcasting (DVB); Second generation framing structure,
channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering
and other broadband satellite applications (DVB-S2)".
[i.47] ETSI TS 101 545-1: "Digital Video Broadcasting (DVB); Second Generation DVB Interactive
Satellite System (DVB-RCS2); Part 1: Overview and System Level specification".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
architecture: abstract representation of a communications system
NOTE: Three complementary types of architecture are defined:
Functional Architecture: the discrete functional elements of the system and the associated logical
interfaces.
Network Architecture: the discrete physical (network) elements of the system and the associated
physical interfaces.
Protocol Architecture: the protocol stacks involved in the operation of the system and the
associated peering relationships.
BSM network: together with the BSM interworking and adaptation functions that are required to provide IP interfaces
(i.e. layer 3 and below) to attached networks
BSM subnetwork: all the BSM network elements below the Satellite Independent Service Access Point (SI-SAP)
BSM System (BSMS): system comprising a BSM Network together with a Network Management Centre (NMC) and
Network Control Centre (NCC)
NOTE: The BSM System also includes any additional elements that are required to provide the network services
to the subscribers and their users.
control plane: plane that provides the control functions
NOTE: The control plane has a layered structure and performs the call control and connection control functions;
it deals with the signalling necessary to set up, supervise and release calls and connections.
flow (of IP packets): traffic associated with a given connection-oriented, or connectionless, packet sequence having the
same 5-tuple of source address, destination address, Source Port, Destination Port and Protocol type
forwarding: process of relaying a packet from source to destination through intermediate network segments and nodes
NOTE: The forwarding decision is based on information that is already available in the routing table. The
decision on how to construct that routing table is the routing decision.
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10 ETSI TR 103 444 V1.1.1 (2016-12)
management plane: plane that provides the management functions
NOTE: The management plane provides two types of functions, namely Layer Management and plane
management functions:
Plane management functions are functions related to a system as a whole and provides coordination
between all the planes. Plane management has no layered structure.
Layer management functions are functions relating to resources and parameters residing in its
protocol entities. Layer management handles the operation and maintenance (OAM) of information
flows specific to the layer concerned.
network control centre: equipment at OSI Layer 2 that controls the access of terminals to a satellite network, including
element management and resource management functionality
user plane: plane that has a layered structure and provides user information transfer, along with associated controls
(e.g. flow control, recovery from errors, etc.)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
rd
3GPP 3 Generation Partnership Project
BSM Broadband Satellite Multimedia
BSM_GID BSM Group Identity
BSM_ID BSM IDentifier
BSMS BSM System
CFM ConFirMation
DiffServ Differentiated services
nd
DVB-RCS2 Digital Video Broadcasting for Return Channel Satellite, 2 generation
nd
DVB-S2 Digital Video Broadcasting for Satellite, 2 generation
FCAPS Fault, Configuration, Accounting, Performance, Security
IGMP Internet Group Membership Protocol
IMS Internet Multimedia Subsystem
IND INDication
IntServ Integrated Services
IP Internet Protocol
IPv6 Internet Protocol version 6
ISO International Organization for Standardization
L2 Layer 2 (of the ISO/OSI protocol stack)
L3 Layer 3
MPLS Multi-Protocol Label Switching
NCC Network Control Centre
NGN Next Generation Network
NMC Network Management Centre
OSI Open Systems Interconnection
PEP Performance Enhancing Proxy
PIM-SM Protocol Independent Multicast - Sparse Mode
QID Queue Identifier
QIDSPEC QID Specification
QoS Quality of Service
REQ REQuest
RES RESponse
ROHC Robust Header Compression
RSVP Resource ReserVation Protocol
RSVP-TE Resource Reservation Protocol - Traffic Engineering
SAP Service Access Point
SD Satellite Dependent
SDAF Satellite Dependent Adaptation Functions
SI Satellite Independent
SIAF Satellite Independent Adaptation Functions
SIP Session Initiation Protocol
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11 ETSI TR 103 444 V1.1.1 (2016-12)
SI-SAP Satellite Independent Service Access Point
SLC Satellite Link Control
SLS Service Level Specification
SMAC Satellite Medium Access Control
SPHY Satellite Physical
TCP Transmission Control Protocol
TR Technical Report
TS Technical Specification
UDP User Datagram Protocol
4 ETSI BSM architecture background
4.1 Functional architecture
4.1.1 Main elements
The main principles of the ETSI BSM architecture [i.30] and [i.31] consist in logically separating the Satellite
Independent (SI) layers (e.g. IP layer) from the Satellite Dependent (SD) layers, in order to provide an
hardware-abstraction layer capable of defining efficient cross-layer mechanisms and enhancing the interoperability
between devices (e.g. satellite terminals and gateways) procured by different manufacturers. This enriched set of
functions is operated through the Satellite Independent - Service Access Point (SI-SAP), which actually extends the
capabilities naturally offered by the Service Access Point (SAP) [i.19], defined between Layer 2 (L2) and Layer 3 (L3)
of the protocol stack, according to the ISO/OSI protocol architecture terminology [i.38]. Likewise, the services
primitives exchanged between SI and SD layers naturally complement and extend those defined between L3 and L2
layers. The application of such concept in a general satellite network results in the definition of the ETSI BSM
architecture [i.24] superimposed to the reference satellite usually constituted by satellite terminals, gateway, satellite,
Network Management Centre (NMC), and Network Control Centre (NCC). The overall ETSI BSM architecture is
applicable to the different configurations that a satellite network can be implementing in terms of topology (star, mesh)
and payload operation (transparent and regenerative), which are suitably casted into different BSM families [i.26].
The functional architecture comprises three main elements (depicted in figure 4.1):
• BSM Subnetwork. It is composed of the satellite network interfaces implemented in the ground network
elements (e.g. satellite terminals and gateways) and the satellite in its entireness (i.e. feeder up-/down-links,
user up-/down-links, and payload).
• BSM Network. It is composed of the BSM subnetwork and the rest of the satellite terminal and gateway
protocol stack, including the SI-SAP interface along with the interworking functions (user and gate
...