ETSI TS 102 460 V1.2.1 (2015-12)

Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia (BSM); Address Management at the SI-SAP

RTS/SES-00354

General Information

• Status: Published
• Publication Date: 17-Dec-2015
• Technical Committee: SES SCN - Satellite Communications and Navigation
• Current Stage: 12 - Completion
• Due Date: 20-Dec-2015
• Completion Date: 18-Dec-2015

Standards Content (Sample)

ETSI TS 102 460 V1.2.1 (2015-12)






TECHNICAL SPECIFICATION
Satellite Earth Stations and Systems (SES);
Broadband Satellite Multimedia (BSM);
Address Management at the SI-SAP

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2 ETSI TS 102 460 V1.2.1 (2015-12)



Reference
RTS/SES-00354
Keywords
broadband, interworking, IP, management,
satellite
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3 ETSI TS 102 460 V1.2.1 (2015-12)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 9
4 Scenarios and service requirements. 11
4.0 Introduction . 11
4.1 Address Management (AM) . 11
4.2 Address Management functions . 12
4.2.1 IP layer Address Management functions . 12
4.2.2 BSM_IDs . 13
4.2.3 Access network scenarios . 13
4.3 Service requirements . 14
5 Unicast architecture requirements . 14
5.1 General requirements . 14
5.2 Management of BSM_IDs in an NCC . 15
5.3 Relating BSM_IDs to a BSM Network . 15
5.4 BSM Address Resolution (B-AR) . 16
5.5 BSM Reverse Address Resolution (B-RAR) . 18
5.6 BSM Dynamic ST Port Configuration (B-DSPC) . 18
5.7 Network Address Translation (NAT) . 19
Annex A (informative): Internet access scenarios . 21
A.0 Overview . 21
A.1 Unicast access services . 21
A.2 Routed IP access mode . 22
A.2.1 Service architecture . 22
A.2.2 Service characteristics . 22
A.2.3 Service protocol stack . 23
A.2.4 Customer Premises configurations for Internet Access . 23
A.2.4.1 Multi-computers LAN with its own internal private IP addressing . 23
A.3 Bridged access mode . 24
A.3.1 Service characteristics . 24
A.3.2 Service protocol stacks . 24
A.3.3 Hub configuration. 25
A.3.3.0 Introduction. 25
A.3.3.1 PPP Terminated Aggregation (PTA) model . 25
A.3.3.2 L2TP Access Aggregation (LAA) mode . 25
A.4 PPP router mode . 25
A.5 DHCP router mode . 26
A.5.1 Service presentation . 26
A.5.2 Service characteristics . 26
A.5.3 Service protocol stacks . 26
ETSI

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4 ETSI TS 102 460 V1.2.1 (2015-12)
Annex B (informative): Address Management network topology . 28
B.1 Address Management SI-SAP model . 28
B.2 BSM network models . 29
Annex C (informative): Example of a double NAT network topology . 31
C.1 Double NAT network scenario . 31
C.2 Premises network routing . 32
C.2.0 Introduction . 32
C.2.1 Public Routable Networks . 32
C.2.2 Private Non-Routable Network . 32
C.3 Double NAT'ing Requirements . 32
Annex D (informative): RSM-B IP routing . 33
D.1 RSM-B overview . 33
D.2 RSM-B routing . 34
D.3 IP routing and address resolution function . 34
D.4 Default route . 36
Annex E (normative): RSM-A Address Resolution . 37
E.1 Introduction . 37
E.1.0 AR functionalities. 37
E.1.1 AR for customer networks. 37
E.1.1.1 AR at Terrestrial Interface for customer networks . 37
E.1.1.2 AR at Satellite Interface for customer networks . 37
E.1.1.3 Satellite ARP Description . 38
E.2 State diagram . 39
E.3 Procedures . 40
Annex F (normative): Specification of SI-SAP AR Primitives . 41
F.1 C-Plane AR Primitives . 41
F.2 Primitives . 41
F.2.1 SI-C-AR_QUERY . 41
F.2.2 SI-C-AR_INFO . 41
F.3 Parameters . 42
F.3.1 AR query handle . 42
F.3.2 AR info handle . 42
F.3.3 AR info type . 42
F.3.4 Network address . 42
F.3.5 Network address type . 42
F.3.6 Status . 43
F.3.7 BSM_ID . 43
F.3.8 BSM multicast flag . 43
Annex G (informative): Examples of AR function usage . 44
G.1 Suggestion for data stored in AR caches . 44
G.2 SI-C-AR_INFO Function . 44
G.3 SI-C-AR_QUERY . 45
History . 46

ETSI

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5 ETSI TS 102 460 V1.2.1 (2015-12)
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 (http://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 Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and
Systems (SES).
Modal verbs terminology
In the present document "shall", "shall not", "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.
Introduction
The present document defines scenarios and architectures to provide address management functions for a BSM
network.
ETSI

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6 ETSI TS 102 460 V1.2.1 (2015-12)
1 Scope
The present document concerns the address management functions that are required to support interworking of a BSM
network with an IP network, including use as part of the general Internet, in particular the address management
functions related to the BSM SI-SAP.
The SI-SAP is described in the BSM functional architecture [1] and defined in the SI-SAP specification [3]. A key
element in the present document is the BSM_Identifier (BSM_ID) which is the SI-SAP address that identifies a BSM
subnetwork point of attachment (SNPA). A BSM network uses the BSM_ID when sending and receiving data via the
SI-SAP: the BSM_ID is an abstraction of the lower layer address that would otherwise be used.
The present document describes the relationships between IP Addresses and BSM_IDs and also describes how to create,
manage, and query the BSM_IDs for the purpose of sending and receiving user data (in particular IP packets) via the
SI-SAP.
NOTE 1: In some systems, requesting to pass traffic across the network also causes reservation of bandwidth. This
is to be considered out of scope of the present recommendation, but assumptions that a notification (e.g.,
bandwidth allocation) will be sent by a QoS Manager will be made.
The present document divides into two parts:
• address management scenarios and architectures;
• unicast address resolution at the SI-SAP.
Lower layer address management (i.e. management of addresses below the SI-SAP) is beyond the scope of the present
document.
NOTE 2: Examples of lower layer addresses that are out-of-scope include Data Link layer addresses, MAC layer
addresses and Physical layer addresses.
The present document elaborates the details of the address management functions, notably the address resolution
function, as defined in the SI-SAP specification ETSI TS 102 357 [3]. It also builds on several other reports:
• ETSI TR 101 984 [i.1];
• ETSI TR 101 985 [i.2];
• ETSI TR 102 155 [i.7].
2 References
2.1 Normative 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
reference document (including any amendments) 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: 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 necessary for the application of the present document.
[1] 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".
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7 ETSI TS 102 460 V1.2.1 (2015-12)
®
[2] IEEE 802 (2001): "IEEE Standard for Local and Metropolitan Area Networks: Overview and
Architecture".
NOTE: Available at https://standards.ieee.org/about/get/802/802.html.
[3] ETSI TS 102 357 (V1.1.1): "Satellite Earth Stations and Systems (SES); Broadband Satellite
Multimedia (BSM); Common Air interface specification; Satellite Independent Service Access
Point SI-SAP".
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
reference 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 TR 101 984: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM); Services and architectures".
[i.2] ETSI TR 101 985: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia;
IP over Satellite".
[i.3] ETSI TS 102 295: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia
(BSM) services and architectures; BSM Traffic Classes".
[i.4] 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.5] IETF RFC 1112: "Host extensions for IP Multicasting".
[i.6] ETSI TR 102 157: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia;
IP Interworking over satellite; Performance, Availability and Quality of Service".
[i.7] ETSI TR 102 155: "Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia;
IP interworking over satellite; Addressing and routing".
[i.8] IETF RFC 3022: "Traditional IP Network Address Translator (Traditional NAT)".
[i.9] IETF RFC 826: "An Ethernet Address Resolution Protocol: or converting network protocol
addresses to 48.bit Ethernet address for transmission on Ethernet hardware".
[i.10] IETF RFC 2131: "Dynamic Host Configuration Protocol".
[i.11] IETF RFC 3046: "DHCP Relay Agent Information Option".
[i.12] IETF RFC 4861: "Neighbor Discovery for IP version 6 (IPv6)".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Address Resolution (AR): provides a mechanism that associates L2 information with the IP address of a system
NOTE: Many L2 technologies employ unicast AR at the sender: an IP system wishing to send an IP packet
encapsulates it and places it into a L2 frame. It then identifies the appropriate L3 adjacency (e.g. next hop
router, end host) and determines the appropriate L2 adjacency (e.g. MAC address in Ethernet) to which
the frame should be sent so that the packet gets across the L2 link.
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8 ETSI TS 102 460 V1.2.1 (2015-12)
Address Resolution Protocol (ARP): protocol defined in IETF RFC 826 [i.9] that is used to associate network
protocol addresses to 48 bit Ethernet addresses for transmission on Ethernet hardware
BSM Address Resolution (B-AR): provides a mechanism that associates a BSM_ID with the IP address of a system
BSM Bearer service: transport service from one SI-SAP to one other SI-SAP (unicast service); or from one SI-SAP to
one or more SI-SAPs (multicast service); within the same BSM subnetwork
BSM Subnetwork: infrastructure that provides transport services between STs
NOTE: The boundary of the BSM subnetwork corresponds to the SI-SAP in those STs; hence the BSM
subnetwork includes elements of the STs, the Gateways and the Satellite.
BSM Network: one BSM subnetwork together with the necessary interworking functions that enable that BSM
subnetwork to interwork with one or more attached networks at the STs
BSM_Identity (BSM_ID): SI-SAP address that defines the BSM Subnetwork Point of Attachment (SNPA)
NOTE: The BSM_ID is divided into BSM Unicast IDs (BSM_UID) and BSM Group IDs (BSM_GID).
BSM Subnetwork Point of Attachment (B-SNPA): SI-SAP endpoint of the BSM data transport services
NOTE: The BSM_ID is used to address data sent to and received from the BSM Subnetwork Point of
Attachment.
dynamically assignable: may be reassigned during normal operations
dynamically assigned: assigned at a well-defined point in an operation, such as at log-in
forwarding: process of relaying an IP Packet from a source to a 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 - see below.
IP datagram (datagram): self-contained, independent entity of data that conforms to the IP protocol
IP Packet (Packet): IP packet is identical to an IP datagram
NOTE: An IP packet contains sufficient information to be routed from the source to the destination computer
without reliance on earlier exchanges between this source and destination computer and the transporting
network.
Network Access Provider (NAP): provides transmission resources to the Service Providers (SP) for accessing their
subscribers
Network Address Translation (NAT): process of mapping between a set of IP addresses in one IP network to/from
another set of IP addresses in another IP network
NOTE: NAT is defined in IETF RFC 3022 [i.8]. NAT is typically used to map between internal IP addresses and
officially assigned external addresses.
Private IP address: address assigned from one of the IETF defined private addressing blocks
Queue Identifier (QID): SI-SAP parameter that identifies an abstract queue at the SI-SAP
NOTE: The QID is used to identify a specific lower layer resource when sending (submitting) data via the
SI-SAP.
routing: process of selecting paths for packets to take based on a routing table
NOTE: The routing table can be created through different routing protocols, some of which include automatic
discovery.
Satellite Network Operator (SNO): owns and is responsible for maintaining, managing, deploying and operating the
Satellite Network (i.e. the BSM network) excluding terminals (STs and Hubs)
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9 ETSI TS 102 460 V1.2.1 (2015-12)
SI-SAP Instance (SAPI): specific independent instance of the SI-SAP in one ST
NOTE: A single unicast BSM_ID (UID) is associated with each instance of the SI-SAP (each SAPI). In addition,
one or more group BSM_IDs (GIDs) may be associated with each instance of the SI-SAP.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AAA Authorisation, Authentication, and Accounting
AAL5 ATM Adaption Layer 5
AM Address Management
API Application Protocol Interface
AR Address Resolution
ARP Address Resolution Protocol
ATM Asynchronous Transfer Mode
B-AR BSM Address Resolution
BAS Broadband Access Server
B-DSPC BSM Dynamic ST Port Configuration
BGP Border Gateway Protocol
BOOTP Bootstrap Protocol
BSM Broadband Satellite Multimedia
BSM_GID BSM Group Identity
BSM_ID BSM Identity
BSM_UID BSM Unicast Identity
C2P Connection Control Protocol
CHAP Challenge HAndshake Protocol
CPE Customer Premises Equipment
CPN Customer Premises Network
DHCP Dynamic Host Configuration Protocol
DSL Digital Subscriber Loop
DSPC Digital Signal Processing and Control
DVB-RCS Digital Video Broadcasting - Return Channel via Satellite
DVB-S Digital Video Broadcasting - Satellite
FLSS Forward Link SubSystem
GID Group ID
GW Gateway
GW/ST Gateway/ Satellite Terminal
IANA Internet Assigned Numbers Authority
ID IDentity
IP Internet Protocol
IPCP IP Control Protocol
IPoA IP over ATM
IPv4 Internet Protocol version 4
IPv6 Internet Protocol version 6
ISP Internet Service Providers
L2TP Layer 2 Tunnelling Protocol
LAA L2TP Access Aggregation
LAC L2TP Access Concentrator
LAN Local Area Network
LLC Logical Link Control
LNS L2TP Network Server
MAC Medium Access Control
MPE Multi-Protocol Encapsulation
MPEG M
...