European FP6 Project:Satellite Access Technologies: Leading
Improvements For Europe (SATLIFE)
Project IPv6 Activities
Dan HeHaitham Cruickshank
Zhili Sun
09 June 2004
Agenda
Project Overview Satlife Consortium Project Objective Current Satellite Architectures Project Key Issues Contributions to Standards
SATLIFE plan for ipv6 inter-domain multicast SATLIFE plans for transition from IPv4 to IPv6
SATLIFE Consortium(13 partners)
EMS(UK)UNIS(UK)
Alcatel (FR)Thales B&M (FR)
Hispasat(ES)ALCATEL SP(ES)
Telefonica(ES)DIT-UPM(ES)
INDRA(ES)
NERA(N)
SHIRON(Israel)
TELEMAR(Brazil)Telefonica R&D(Brazil)
Project Workload 85PY in total
Project Objective
Development of low cost access network DVB-RCS systems for transparent and regenerative satellite solutions in order to ensure the availability of broadband for all.
Launch mid-2004High Quality Multimedia Interactive Services
Four spots: North America,South America, Brazil and Europe
Amazonas Satellite:1st multimedia OBP
Current Satellite SystemsAccess Network Architectures
DVB-RCS architecture: 2-way multimedia IP based DVB-S forward link MF-TDMA return link MPEG segmentation Packet based DAMA
Corporate
RAS
Satellite Terminal (ST)
Telcos
Transport network
ISPs
HUB
Return link
Return link MF-TDMA
Forward link TDM DVB-S
ST LAN
LAN
ST Access Node
Management Centre
RMG
SME/ Enterprise
ISP POP
Multi - Dwelling
Telco POP
LAN
SOHO/RES
PSTN
LAN LAN
NCC i
C o rp o ra te
ST
A ccessN etw o rk
M a n a gem entISP
M NM S
Tra ffic link
Sig na lling link
LA N
ST
ST
Sa telliteO n Bo a rd Pro cesso r
(cell o r circuit sw itch ing )
A ccessC o ntro l
fun ctio n s fo rIn teractiveN etwo rk i
C o rp o ra te
ISP
ST
Signa lling link
STIn teractiveNetw ork i
In teractiveNetwo rk j
Regenerative Satellite architecture (RSA): Multi-Gateway Mesh: direct ST-to-ST On-board switching DVB-S downlink DVB-RCS uplink
Project Key Issues
QoS issues in regenerative satellites: Only pure physical/access layer standards (DVB-RCS). DVB-RCS is
based on IPv4 and the project has dedicated this issue No QoS support definition for satellite system.
IPsec issues: Problems with Performance Enhancing Proxies (PEP), multicast and
NAT Interworking issues in satellite/terrestrial integration. Multicast issues over DiffServ/MPLS. Network management issues:
No MIB definitions
Contributions to standards
Contributions to ESA SATLAB: Interoperability, ODU, IDU, installation
Contributions to DVB Standard: DVB-S2, DVB-RCS,DVB-TM, DVB-CM, DVB-IPI
Contributions to ETSI-TC-SES/BSM: Multicast, IP, QoS, services, Addressing
SATLIFE plan for IPv6 inter-domain multicast
For SATLIFE project, IPv6 and multicast remain areas of on-going research (IETF: draft-savola-v6ops-multicast-issues-03.txt).
Due to multi-domain nature of satellite systems, global IPv6 inter-domain multicast is impossible. There is no way to convey information about sources between PIM-SM RPs. Source-Specific Multicast could be a solution without RPs and can be communicated out-of-band. SSM is far from being generally implemented, much less deployed
SATLIFE plans for transition from IPv4 to IPv6
The transition from IPv4 to IPv6 and co-existence of IPv4 and IPv6 is a subject of much debate (IETF: draft-savola-v6ops-transarch-03.txt): Currently we are at the early stages of the transition
Deployment models for IP nodes can be: IPv4-only Dual-stack with only IPv4 connectivity Dual-stack with IPv4/6 connectivity Dual-stack with only IPv6 connectivity IPv6-only
SATLIFE project will continue to monitor the IPv6 deployment in Europe: A study will be conducted on the IPv4/IPv6 transition and
interworking.
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