GSC Sentinel-2 PDGS SRD - emits - ESA

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GSC Sentinel-2 PDGS SRD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-RD-09-0028 page 186 of 204 S2-PDGS-NET-085 The MCN operations shall be operated on a 8 hours / 5 working days basis (TBC) S2-PDGS-NET-090 The PDGS Network and VCN communications shall perform autonomously on a 24 hours / 7 working days basis. S2-PDGS-NET-095 The PDGS Network functions shall perform the real-time and historical monitoring of the status, load and performance of the physical network infrastructure in the different centres and across centres, including the analysis of source of non-authorised traffic. 5.21.4 RAMS REQUIREMENTS S2-PDGS-NET-100 The LAN shall provide the following Availability and reliability figures: Availability: 99,95% (TBC) Max Time To Repair: TBD Mean time between failures: TBD Comment: the evaluation is based on the assumption that the Sentinel 2 PDGS network delivers a minimum of 99.5% availability end-to-end measured over a period of one year. S2-PDGS-NET-105 The DCN, FCN and DDN shall provide the following Availability and reliability figures: Availability: 99.6% (TBC) Max Time To Repair:
GSC Sentinel-2 PDGS SRD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-RD-09-0028 page 187 of 204 5.21.5 NETWORK SECURITY REQUIREMENTS S2-PDGS-NET-120 The PDGS LAN, DCN, and FCN functions shall be secured against unauthorized access from the public Internet. S2-PDGS-NET-125 The PDGS WAN function shall ensure that remote external access to a selected pool of PDGS elements is possible for warranty support or maintenance purposes only. S2-PDGS-NET-130 The PDGS WAN function shall ensure that it is possible to deactivate external access used for warranty support or maintenance purposes when not required for warranty, maintenance or diagnosis purposes. 5.21.6 DESIGN & DEVELOPMENT REQUIREMENTS S2-PDGS-NET-135 The DCN and DDN network topology shall be designed as an IP Full-Meshed or partially meshed Network. S2-PDGS-NET-140 All PDGS Data Communication functions shall be based on public or private off-the-shelf services. S2-PDGS-NET-145 The design of the PDGS Data Communication functions shall allow an upgrade of the WAN link infrastructure (e.g. change of network operator) within the operational lifetime of the PDGS, with impact limited to network static configuration. S2-PDGS-NET-150 The design of the PDGS Data Communication functions shall prevent the quality of service brought by a given communication function of being degraded by the traffic handled by the other communication functions. S2-PDGS-NET-155 The PDGS Network shall be upgradeable to offer full redundancy/diverse routing at least for the links between the PDGS X-Band Core Ground Stations and the PDGS centre(s) within 1 month. ESA UNCLASSIFIED – For Official Use © ESA The copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied or communicated to any third party without written permission from ESA.
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Appendix B D O C U M E N T document
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[RD-11] GMES Sentinel-2 Phases B2,
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5.3 Data Processing Control (DPC) R
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5.8 Long-Term Archive (LTA) Service
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the geographical footprint of the d
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GSC Sentinel-2 PDGS SRD - emits - ESA

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