data center | Connectivity | OnRamp Backbone

OnRamp's core layer of backbone routers within its Austin Data Center connect via independent fiber based Gigabit Ethernet (GigE) connections to TW Telecom, Qwest and AboveNet.  TW Telecom's Austin central office and Internet backbone shares the building with OnRamp's Austin Data Center.  OnRamp occupies half of the building and TW Telecom's central office occupies the other half.

OnRamp's GigE connection to TW Telecom never leaves the building; it passes through a conduit into TW Telecom's space, and TW Telecom uses redundant SONET rings to maintain connectivity to its Internet backbone. 

OnRamp uses Border Gateway Protocol 4 (BGP4) to announce and accept routes from our backbone partners and Open Shortest Path First (OSPF) for interior routing.  If either backbone or any router fails, the network automatically routes traffic around the interruption.  During normal operation, the routing protocols insure that packets are routed along the best path across the Internet on a route by route basis.

OnRamp's edge layer of routers in the Austin Data Center connects directly to customer's Co-location spaces by 100 Mbps Ethernet or Gigabit Ethernet.  Customers may burst to the electronic capacity of their Ethernet connection and are two routers or "hops" from each Internet backbone, one at the edge layer and one at the core layer.