When hosting
services on-site, such as E-mail or Web servers, it's
important to ensure near 100% uptime. Often these
services can be offline due to link failure or
insufficient bandwidth to deal with requests. E-mail and
Web servers are often core to enterprises' operations
and can cause major issues
should they fail.
Usually,
businesses choose
to host these services at their own premises rather than
outsourcing to ISP's or hosting companies. This has the
benefit of being much more cost effective, however this
invariably means the lack of a redundant infrastructure
that ISP's provide.
Solution Overview
In recent
years,
businesses have began to use the Internet as a vehicle
to interact with other businesses and co-workers more
efficiently and ultimately more cost-effectively.
Companies adopt more and more of these services such as
Virtual Private Networks, Voice Over IP and
Collaboration services like E-mail and IM, but as this
usage grows the requirement for increased bandwidth and
resilience becomes particularly
important.
As ISP competition
increases, lower cost broadband links are offered to
compete with market demand. Invariably,
businesses invest in these
lower
cost broadband links to
reduce overheads.
While being very cost-effective,
they also represent several issues and should be relied
up at their peril. Firstly, no Service Level Agreements
(SLA's) means that if the circuits are to fail, there is
little that can be done the rectify
the problem quickly. Moreover, broadband links are
designed for accessing data from the Internet rather
than serving it, thus the upload bandwidth is radically
lower than the download. This can be problematic if you
are serving VPN's, E-mail and Intranet Services as the
available bandwidth is just not enough.
Often enterprises reach a point where bandwidth
requirements exceed the available budget.
Often the only option would be to upgrade from
their existing broadband links to a costly Leased Line
solution.
- If the
link is to fail, then you have complete outage for an
undetermined amount of time.
- If the
upload bandwidth is saturated for any reason, the
entire Internet connection could appear broken and
network clients cannot be serviced.
- It's
very difficult to separate critical data from
bandwidth intensive applications such as web browsing
or peer-to-peer software.
- Once
bandwidth requirements meet the maximum availability,
the only option would be to upgrade to costly
alternatives.
The Q-Balancer® can be
introduced into existing network infrastructure without
any change to your network design or IP
structure.
It works with your current firewall solution and can be
used to quickly provide increased bandwidth, resilience
and scalability to your corporate Internet connection.
.
|