Uninterruptible Power System
To guard against local power failures,
we have two industrial-grade, three phase Liebert UPS systems. These
act as back-up batteries, maintaining uninterrupted power in case of
surges or power outages. With these backup systems in place, we can
keep our network up and running indefinitely without relying on external
power.
Industrial-Grade Air Conditioners
Our NOC has two Liebert ten ton industrial
air conditioners, which condition our computer rooms and operations
center. Our computer room is kept at an optimal temperature of 65 degrees
fahrenheit.
Custom Web Servers
Our web servers are custom-built industrial
machines designed for a 24/7 web serving environment. All of our servers
are equipped with dual redundant 450-watt power supplies, hot swap Seagate
Baracuda/Cheetah drives and force-filtered cooling systems. In addition,
our NOC is equipped with an inventory of identically configured, burned-in
standby servers.
Force Filtered Cooling
All of our custom web servers are equipped
with a positive pressure filtered-air system. Four large fans pull filtered
air into each server's protective case and the components within are
cooled by fans which circulate this purified air. This constant introduction
of clean air into the case creates a positive pressure environment ensuring
dust and particles remain outside of the server.
Hot Swap Seagate Drives
The drives and drive bays of all our
servers are constructed from high-grade aluminum, and rest in shock
mounted drive cages, which adds to the durability of the hardware. our
drives proudly feature the lowest failure rate in the industry.
Redundant Hot Swap Power Supplies
Each server employs dual-redundant hot
swap power supplies. If a power supply were to fail, the server would
continue running with power from the alternate supply. Meanwhile, alarms
would alert a technician, who would quickly restore redundancy. In the
meantime, servers and client sites would experience no downtime.
Standby Servers
We
keep spare servers on-line of all CPU configurations. If a server were
to experience a hardware failure, we would turn a key, grab the handle
on the drive, pull it out, and insert it into an identical standby CPU.
We would then reboot the second machine and the server would be up and
running again in a matter of minutes.
Connected to Three Backbones
Our NOC located in Baltimore,
Maryland is OnNet with GlobalCenter (GC), Qwest Communications and GTE
through three separate bandwidth-on-demand connections which enter Baltimore
in our building. GC, a Tier 1 provider whose 13,000-mile fiber optic
network and Dense Wave Division Multiplexing (DWDM) technology provide
an enormous 460 gigabytes per second (Gbps) of capacity worldwide, has
an Asynchronous Transfer Mode (ATM) fiber node located just a few floors
below our NOC.
Qwest comes into Baltimore with
an OC-12 line and plans to upgrade their connection to an OC-48 in the
near future. They also have an ATM fiber node floors below the Alabanza
NOC. Our Qwest connection enables us to offer additional redundancy
and better routes to Europe, Latin America and Asia. With our carriers,
our router has up to 150,000 possible routes to send each packet of
traffic.
Genuity, a division of GTE, is
our third Tier One Internet backbone. Genuity provides excellent network
performance as a result of their high-speed peering arrangements with
other Tier One Internet backbone providers. The GTE global network delivers
customers directly onto the Internet via a high-speed connection to
its private, super-capacity backbone, including 17,000 miles of fiber
and OC192 capacity. It is comprised of more than 800 U.S. local access
points and approximately 1,500 international local access points in
more than 150 countries.
Furthermore, because of these unique
connections, we do not need to link to the Internet though an OC3 or
T3 Telecom circuit. Instead, independent cables run inside our building
directly from our NOC to all three carriers points of presence. These
lines can handle the bandwidth of a T3 or an OC3 with DWDM. Plus, they
handle several times the bandwidth of an OC3. Whatever your bandwidth
needs may be, we have the scalability to meet them.
Network Redundancy
We use intelligent end-user routing
software called Border Gateway Protocol (BGP), between Qwest, GC and
GTE, who use the same protocol. BGP identifies which path is the most
efficient for each data packet and then routes the packet to its destination
on the fastest path. This increases the speed at which web pages sent
from our NOC arrive at their destination. 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 three Tier-1 providers. If one experiences problems,
we can route traffic down the other one.
Furthermore, because we are OnNet with
GlobalCenter, Qwest and GTE, 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
us to exchange packets of data with every major backbone carrier in
a one-to-one environment quickly and efficiently. In addition, GC has
high-speed links to eight public exchanges including both MAE East and
West and several NAPS.
Through these public exchanges, customers
have the ability to reach their site, no matter from where they are
coming on the Internet. 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 Global Center, Qwest and GTE, 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 7500 routers and theirs.
Our providers also have peering
connections with other major Tier 1 providers, which allows traffic
to be switched to alternate backbones should the need arise. Raw Performance
Equals Low Latency/High Throughput Too often providers operate their
networks at three to four times responsible capacity. As a result, their
corresponding transfer times reach over 300ms.
Our network daily average is 27%
of its capacity, with midday peak spikes reaching only 33% capacity.
We guarantee clients will be carried off our network in less than 80ms
over a five minute average at any time of day or night.
Back To Top