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A  wide
area network or WAN is a computer network
covering a wide geographical area, involving
a vast array of computers. This is different
from personal area networks (PANs), metropolitan
area networks (MANs) or local area networks
(LANs) that are usually limited to a room,
building or campus. The best example of
a WAN is the Internet.
WANs are used to connect
local area networks (LANs) together, so
that users and computers in one location
can communicate with users and computers
in other locations. Many WANs are built
for one particular organization and are
private. Others, built by Internet service
providers, provide connections from an organization's
LAN to the Internet. WANs are most often
built using leased lines. At each end of
the leased line, a router connects to the
LAN on one side and a hub within the WAN
on the other. Network protocols including
TCP/IP deliver transport and addressing
functions. Protocols including Packet over
SONET/SDH, MPLS, ATM and Frame relay are
often used by service providers to deliver
the links that are used in WANs. X.25 was
an important early WAN protocol, and is
often considered to be the "grandfather"
of Frame Relay as many of the underlying
protocols and functions of X.25 are still
in use today (with upgrades) by Frame Relay.
Interconnecting multiple
company sites on a WAN is now a common practice,
as is connecting the corporate network to
the Internet, partners and customers.
Our knowledge of routing
techniques and protocols is fundamental
in ensuring your communications are reliable.
We can make your services resilient - routers
that exist as single points of failure can
directly affect your business if they go
offline.
We are vendor independent,
but always select tried and trusted technologies
for this key networking element.
We are also able to
help you build a load balanced Internet
gateway, using high availability protocols
such as VRRP, HSRP and BGP.
Cisco
Systems
Cisco pioneered routing, and continues to
develop market leading WAN technology.
Cable
& Wireless Ireland integrates
a wide range of Cisco routing products,
ranging from small SOHO models to high-end
enterprise class devices.
Our comprehensive coverage
means we are able to deliver an entire wide
area network based around Cisco technology.
We can understand your remote locations,
desired connection speeds and the applications
you plan to use across the network, and
help you select the right products.
Call
Percento: 1.800.614.7886 or for email contact
us form CLICK!
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