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Synergy
Research Group Case Study
Integrated
Services Router

Cisco
ISR with Integrated Security, Voice, Wireless Video, WAN Optimization
and Switch. |
Overlay
Appliances

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In
today’s quickly changing business environment, strategically
deployed networks are at the forefront of creating a competitive
advantage. The highest cost component of a network infrastructure
is the ownership and operation of a network across geographically
dispersed branch offices. It is conceivable that a branch office
could have a dozen distinct appliances. While dedicated hardware
can offer a relatively quick way to deploy new technologies, this
set-up can lead to appliance overload because of the generally limited
availability of administrative staff and resources, such as rack
space.
A
recommendation to address this widely encountered problem is to
employ a systematic and planned reduction of appliance clutter in
the branch office by investing in devices that can combine previously
distinct functions. Network solutions that integrate voice, data,
security, wireless and wired networks help to simplify operations,
improve reliability, provide better quality of service, and reduce
infrastructure costs. Additionally, it is imperative that the network
offer end-to-end consistency at all organizational levels –
from corporate to branch office. If not, branch office productivity
may be negatively impacted, and network costs may grow exponentially.
Synergy
Research Group conducted a case study on this topic to determine
the advantages of implementing a Cisco Integrated Services Router,
which takes branch office network productivity to a different level.
The ISR 3845 is a single device that can meet a variety of branch
needs including:
- WAN Connectivity
- Security
Services (firewall, ACL, IDS, URL filtering)
- Secure
Connectivity (encryption, VPN)
- Voice Services
(QoS, compression, call processing, VM, auto-attendant, SRST gateway,
conferencing)
- Wired and
Wireless LAN
- Application
Acceleration (caching, pre-positioning, streaming, URL filtering)
- Advanced
Management (full RMON services)
We
compared this device to six different appliances, including a router,
switch, IP-PBX, WLAN controller, compression device, VPN concentrator
and firewall device. In comprehensively architecting a branch office’s
network infrastructure, we took into account the costs and complexity
of owning and operating a branch over a specific time period. Some
hard questions that were raised included:
- Does the
existing equipment have enough headroom to support a branch office’s
growth needs?
- What are
the complexities in introducing a new application in the branch
office?
- Is there
a significant cost and learning curve to implement a new solution?
In
our analysis the Cisco Integrated Services Router performed remarkably
better than other devices because of several reasons. They include:
- Better
quality of support to the branch offices due to less equipment
needed at the branch.
- Increased
manageability of branch’s infrastructure.
- Total
cost of ownership per user at the branch over a three-year period
was three times higher for those that selected overlay appliances.
- Companies
in this case study showed a 4X savings on operational cost in
three years, which allowed them to use the saving to expand their
business and open other branch office
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When determining
equipment needs, it is equally important to address the service
velocity, or speed, at which businesses can deliver services to
their customers. Fast, effective, flexible service delivery improves
customers’ experiences and increases customers’ loyalty.
Strategic decision makers also like to consider the increase in
the value of their business, optimization of their return on investment
(ROI), total cost of ownership (TCO) and productivity improvement
when looking at network equipment choices.
Simply put, the integrated approach of the Cisco Integrated Services
Router helps decrease total cost of ownership; – it has revolutionized
the bit-per-dollar game at the branch office level.
While offering a distinct 5 to 30 percent capital expenditure advantage,
owning a Cisco Integrated Services Router over a 3-year period,
in comparison to owning overlay appliances, constitutes a saving
of more than 70 percent per year. Therefore, an enterprise network
with 10 branches and 50 employees will end up spending 4 times more
for diverse, overlay point products in their network. Furthermore,
they will need to deal with multiple layers of complexity related
to ongoing operations, support and troubleshooting.
Our model was conservative; it does not account for the corporate
revenue gained from the increased network availability attained
by deploying a fully integrated solution. Additional refinement
of the model accounting for the number of revenue generating employees
that are affected by network downtime would further demonstrate
the dramatic benefits of an integrated solution.
Owning a Cisco Integrated Services Router clearly provides a lower
TCO and generates an extremely compelling return on investment (ROI)
for the network. Refer to the summary of the amounts amortized over
a 3-year life-cycle of the equipment in Table 1.

Table 1: Three Year Direct and Indirect Cost Ownership
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Direct
Costs: - Network management and hardware management tools,
annual maintenance contracts, facility costs (space, power, and
cooling requirements), and implementation (deployment and provisioning)
costs.
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Indirect
Costs: - Availability costs, such as planned downtime,
unplanned down-time, loss of employee productivity, and revenue
loss due to network downtime.
Before
committing to significant capital outlays for new networking equipment,
companies must assess how much investment is really required for the
branch office’s infrastructure. This means taking a hard look
at all of the costs associated with the network, including operation
of and maintenance of the network, apart from accounting for the strategic
needs of the company from the corporate perspective. When
making this determination, it is important that a company not be blinded
by just the price per performance issue.
With
quality appliances and the right combination of features within the
Integrated Services Router, enterprises are finding that they can
satisfy the demand for new technologies relatively quickly, often
expending fewer staff and budget resources than traditional software
stacks require.
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