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Access
to vital corporate information is a business-critical capability
and those companies that can provide it have a measurable
market advantage. Thus, businesses depend on flexible, reliable
network access solutions.
Businesses use WANs to increase communication and productivity
while reducing costs and reaching new customers. WANs allow
businesses to exchange data between sites that may be located
across the country or around the world.
Enterprises commonly use WANs to: build an intranet between
corporate offices, connect with business suppliers via an
extranet, connect to the Internet, and conduct electronic
commerce.
As campus bandwidth requirements grow to meet the increased
demand for new applications and services, demands on wide
area links also grow. Two major trends driving the market
for more powerful WAN connections are: the move toward integration
of voice and video onto the data network and the need to prioritize
network traffic. |
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WANs
are typically composed of powerful routers and switches, which
link campuses and remote offices around the world. Routers
and switches are determined by need and plans for growth.
Cisco's technology supports WAN links of all sizes. |
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The
routers connecting campuses need to apply traffic optimization,
multiple paths for redundancy, and dial backup for disaster
recovery and Quality of Service (QoS) for critical applications.
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All
technologies and features in connecting campuses over a WAN
should be developed to optimize the WAN bandwidth, minimize
cost, and maximize effective service. Cisco IOS Software is
key for WAN functionality. |
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For
multiservice traffic to traverse a converged WAN, the network
must support and supply QoS features from one end to the other.
In addition, the design and dimensioning of the WAN can be
synergistic with traffic profiles, business requirements,
and circuit costs. Essentially, to ensure a scaleable architecture,
there must be a supporting infrastructure |
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