Redundancy


PosTrack’s Level 3 collocation facilities are IP-enabled and docked to Level 3’s Tier 1 backbone; and in addition, all Level 3 data centers and infrastructure feature true route diversity. Each Level 3 Gateway is connected to the intercity network and its resident metropolitan network by at least two physically separate building entrances. Whenever possible, the Gateways are connected to the fiber by three entrance facilities. This provides for the greatest protection from network outages caused by events such as fiber cuts that could disable one of the fiber links into the gateway.

In addition to route diversity, PosTrack and Level 3 ensure network access with redundant and duplicate equipment including routers, firewalls, and switches with various port speeds. The following types of port interfaces are available options at collocation facilities:

  • 10/100 Ethernet/Fast Ethernet (10 Mbps/100 Mbps)
  • 1000SX/Gigabit Ethernet (1000 Mbps)
  • 10 Gigabit Ethernet

Redundancy is engineered in the network architecture to ensure continued service in the event of a network failure.

  • Dual access routers and switches are located in each collocation facility and offer port speeds of 10/100 Mbps Ethernet, 1 Gbps Ethernet and 10 Gbps Ethernet (as well as other port options). PosTrack also ensures sufficient capacity for normal and fail-over operations by taking advantage of Level 3’s policy of limiting every internal network link to less than 50 percent utilization. Any time an internal Level 3 Network link approaches 50 percent utilization, capacity on the link is immediately increased. Limiting link utilization to less than 50 percent guarantees redundant capacity in the event of failure of other network links.
  • All collocation routers/switches are dual-homed to the IP network.

Additional Redundancy and Security Features Include:

  • Reduced risk of natural disasters such as earthquakes, floods, and hurricanes.
  • An ample supply of clean and stable power.
  • Fast fiber optics with direct peers to major network access points with mass volumes of reliable bandwidth.
  • N+1 redundancy on power and cooling within the data center facility.
  • Fully redundant power generators.
  • Carrier grade 48VDC power and grounding systems.
  • Highest level of security to meet the high demands for compliance.
  • Redundant air handlers and management systems.
  • Dual gas and early smoke detections systems.
  • Video surveillance, card and biometric access control systems, and proximity/motion detectors.