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Routers and Equipment -Juniper Backbone Routers Connectivity Currently there is a full 2000 mbps (2GiG-E connections) supplying our Data Center. In OC fiber line terms thats close to 3- OC-12 lines and 1- OC-3 line. The use of non-blocking gigabit devices throughout the network ensures regional latency of a few milliseconds or less, suitable for the most demanding delay-sensitive traffic. Use of redundant fiber rings ensures network reliability and availability. The data center has connections to many different Internet backbones including Level3, Genuity, Time Warner and Yipes. By connecting to multiple tier 1 backbones, the data can be distributed through many sources. This architectural design also means that the network connections are not dependent upon a single Internet backbone. Thus, when probems occur, traffic re-routing is automatic, thereby ensuring the integrity of the network and continued access for our high-speed servers. This takes the term multi-homing to a whole new level. Presently bandwidth utilization is 5% during peak traffic times. Therefore, the network is very flexible. If one of the backbone connections experiences problems, the traffic can simply be rerouted over other paths, thereby ensuring that users receive fast access times to sites hosted on our network. In addition, the network runs Border Gate Protocol
(BGP4). BGP is used at a provider with more than one access point to the
Internet. It helps create a truly redundant network. In fact, in an ideal
situation, a lease line failure will result in the BGP routing session
to close on the bad leased line and the router on a working circuit will
then begin to accept the additional traffic. In other words, traffic from
a down circuit is redistributed across other circuits, thereby maintaining
network integrity. Providers that are multi-homed and correctly setup
can actually be more reliable than a single backbone provider because
they have multiple paths to multiple providers. A provider's local area network is not often enough being seen as a point of latency. The two main sources of latency for a full-time Internet connection are the user's local area network and the Internet provider's local area network. Ether switches and high-end Juniper routers anchor the local network. This top-of-the-line network hardware ensures that data requests get to their destination and back out of the network as fast as possible. We use ether switches instead of hubs because of their
speed and their security capabilities. This means more data can travel through a switch and each server acts as its own node on the network. Furthermore, since each server is its own node on the network, it is difficult for hackers to trace data packets with sensitive information (i.e. passwords) to a particular server. Servers on the network do not share a single path (T3). Instead, the servers are connected into a high-speed Ethernet switch. This switch is connected to the core router at the data center. From the core router, data is sent back to the end
user across the fastest available path. Whereas statically routing traffic
over one path creates a single point of failure, this distributed architecture
ensures that users can access data extremely quickly and have multiple
paths both into and out of our network.
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