{
  "url": "https://openlegislation.uk/eu-decision-2007-170/annex/division-4/division-4.7",
  "json_url": "https://openlegislation.uk/eu-decision-2007-170/annex/division-4/division-4.7.json",
  "legislation": "eudn/2007/170",
  "legislation_title": "Commission Decision of 16 March 2007 laying down the network requirements for the Schengen Information System II (1st pillar) (notified under document number C(2007) 845) (Only the Bulgarian, Czech, Dutch, German, Estonian, Finnish, French, Greek, Hungarian, Italian, Latvian, Lithuanian, Maltese, Polish, Portuguese, Romanian, Slovak, Slovenian, Spanish, and Swedish text is authentic) (2007/170/EC)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2007-170",
  "path": "annex/division/4/division/4.7",
  "kind": "division",
  "number": "4.7",
  "heading": "Resiliency",
  "text": "The CS-SIS has been designed with high availability as a requirement. For this reason the system have integrated resiliency against component malfunctions by duplicating all equipment.\nThe components of the Communication Infrastructure must also be resilient against component failure. For the Communication Infrastructure, it means that the following components must be resilient:\nbackbone network\nrouting devices\npoints of presence\nlocal loop connections (including physically redundant cabling)\nsecurity devices (crypto devices, firewalls, etc.)\nall generic services (DNS, NTP, etc.)\nLNI/BLNI.\nThe failover mechanisms for all network equipment should occur without any manual intervention.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2007/170/annex/division/4/division/4.7",
    "retrieved_at": "2026-11-01T15:17:14.878276+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}