Understanding network speed, security, and stability is one of our driving forces; and have invested heavily in hardware and facilities that ensure your sites are up and running on the web 24 hours a day, seven days a week.

Network Connectivity
JBServers utilizes connections to multiple backbones to ensure that data reaches the end-user in the fastest, most efficient manner possible. Our world-class data centers are powered by an OC-192 (10 Gigabits per second, 220 times faster than a T3) nationwide backbone and a new 155mbps OC-3 (100x faster than a T1) connection with Level3. Because of this we're able to provide lightning fast connectivity. By utilizing direct access to each of the major backbone providers we can deliver you unsurpassed speed & reliability. Here is a brief overview of a couple of our connectivity providers:

Cogent's end-to-end optical network consists of multiple metropolitan IP-over-WDM fiber rings located in Cogent's major markets throughout the United States and Europe. Cogent currently has a presence in over 86 markets throughout the United States and Europe. Cogent's network provides each building or colocenter with up to 5 Gbit/s of dedicated bandwidth. Layer 3 edge routers in each building are connected to Cisco Layer 3 Terabit core routers over two diverse optical paths. These core routers are tied together via a a multi-national backbone network consisting of multiple 10 Gbit/s DWDM optical links. With a currently implemented capacity of 80 Gbit/s in the United States and 40 Gbit/s in Europe, Cogent's multi-national IP network is the largest in the world and is scalable to a total capacity of over one Terabit.

Level3 , is our second Tier 1 Internet backbone. Level3 continues to build-out the first international all IP-based broadband network that's built from the ground up. Extending from the U.S. to Europe and Asia, the Level 3 broadband network already provides the infrastructure Web-centric businesses need today. We are connected to Level3 at 155mpbs (OC-3) connection.

Williams Communications network was built to expand based on demand, WilTel's network allows the company to take advantage of future advances in optical networking. The WilTel® network was built with a minimum of 96 fibers in every build, with multiple conduits and optical amplifiers or regeneration stations every 40 miles along the network. Utilizing OC-192 transport systems with dense wavelength division multiplexing, the WilTel network delivers up to 180 Gbps on a single fiber system. The WilTel optical network architecture also enables unheard of provisioning times frames: as little as 25 days for OC-48 (2.488 Gbps) connections.

XOT Communications : The core of the XO backbone network is a mesh of OC-192 circuits, connecting XO Peering POPs and XO Data Centers. The XO OC-192 IP backbone runs completely across its own Inter-city facilities. Using a mesh of physically diverse OC-192 circuits, this backbone interconnects our five data centers with multiple high-capacity peering interconnections. Additionally, XO offers Dedicated Internet Access (DIA), DSL and Dial customers enhanced Internet connectivity by connecting each DIA market to the OC-192 backbone with dual OC-12c SONET-protected circuits. This network design delivers maximum end-to-end throughput as well as high levels of protection and redundancy. As one of the few fully peered, facilities-based Tier 1 network backbone providers in the U.S., XO has substantial private peering arrangements in many metropolitan areas at speeds of up to OC-12. As a Tier 1 Internet provider, XO is constantly improving its peering infrastructure to benefit our customers.

Furthermore, because of these unique connections, jbservers does not need to link to the Internet though an OC-3 or T3 Telecom circuit. Instead, independent cables run inside our building directly from the NOC to all two carriers' points of presence. These lines can handle the bandwidth of a T3 or an OC-3 with DWDM. Plus, they handle several times the bandwidth of an OC-3. Whatever your bandwidth needs may be, jbservers has the scalability to meet them.

Network Redundancy
jbservers runs the Border Gateway Protocol (BGP4) for best case routing. BGP4 is a protocol for exchanging routing information between gateway hosts (each with its own router) in a network of autonomous systems. BGP4 is often the protocol used between gateway hosts on the Internet. The routing table contains a list of known routers, the addresses they can reach, and a cost metric associated with the path to each router so that the best available route is chosen.

JBServers uses BGP4 to communicate using the Transmission Control Protocol (TCP) and send updated router table information only when one host has detected a change. Only the affected part of the routing table is sent. BGP4, is the latest version, letting administrators configure cost metrics based on policy statements.

BGP communicates with autonomous (local) networks using Internal BGP (IBGP) since it doesn't work well with IGP. The routers inside the autonomous network thus maintain two routing tables: one for the interior gateway protocol and one for IBGP. BGP4 makes it easy to use Classless Inter-Domain Routing (CIDR), which is a way to have more addresses within the network than with the current IP address assignment scheme.

Also, studies have shown that the most common reason for downtime is circuit failure on Tier 1 provider backbones, the major data highways. To guard against this potential problem, we have two Tier-1 providers. If one experiences problems, we can route traffic down the other one. Furthermore, because we utilize Cogent, Williams and Level3, we share their digital distribution architecture, which includes private peering network connections to major Internet carriers such as MCI, Sprint, UUNET, EUNET, AT&T, AOL, Best, Erols, @Home, IBM Advantis and others. These private peering arrangements allow jbservers to exchange packets of data with every major backbone carrier in a one-to-one environment quickly and efficiently.

Network Reliability
Industry analysis reveals that 70% of downtime over ten hours with any ISP is caused by telephone circuit failure. Since our NOC is in the same building as Williams, Cogent and Level3, circuit failure is virtually eliminated because there is no phone circuit between us and our providers. Instead, there is a direct connection between our Cisco routers and theirs. jbservers's providers also have peering connections with other major Tier 1 providers, which allows traffic to be switched to alternate backbones should the need arise.