As networks grow as organizations grow beyond the shores, with it comes bandwidth problems. There are several ways to resolve the issues on WAN optimization; some may simply purchase higher bandwidth, but does it really solve the issue of the dynamically growing needs of the organization?
WAN Optimization is really about improving the performance of the applications over the WAN. Traffics vary from file transfers, VoIP traffic, and organizations are seeking for solutions to optimize the response times and to reduce cost. New applications continue to put a strain on the network resources and thus optimizing the performance and accelerating these applications is vital to the operations of today's organization.
We recommend:
Product: Expand WAN Optimization
Next-generation compression and layer 7 QoS to ensure that the network is aware of the applications critical to run your business.
1. Manage your network according to business need
2. Guarantee application performance all of the time
3. The cost-effective alternative to WAN upgrades
When it comes to optimizing the WAN, there are two obstacles to overcome.
The first is the WAN link's limited bandwidth. As the pioneer in WAN compression, Expand understands the delicate balance between analyzing traffic for compression and causing queuing and latency by interrupting the flows. The Expand compression technology focuses on performance, using low latency, lossless techniques that work on all applications and consistently deliver average bandwidth increases between 100% and 400%, with peaks over 1,000%.
The second obstacle is aligning the network to the business at the LAN-WAN bottleneck. Expand's QoS is easy to set up and immediately ensures that the applications running the business are running unimpeded on the WAN. It is not just prioritization, but includes sophistication to combat congestion, mark packets for downstream QoS handling (i.e., MPLS), and rate control shaping to make sure flows get the bandwidth they need.
With both compression and QoS, Expand's WAN Optimization will turn an expensive and low-bandwidth WAN into a strategic asset that will perform better, deliver more, and ensure business priorities are met.
QoS Solutions
Product: Expand Acceleration
Over the past few years, with dropping network prices, it was tempting to add bandwidth to try and solve application problems on the WAN. But bandwidth is often not the answer. The problem is usually a bit more complicated … it is an issue of physics. Consider a completely clear 64 KB link traversing a distance of 10,000 kilometers (about the distance between Tokyo and New York). Under the best possible lab environment conditions (light traveling in a vacuum), a 1 KB packet would take a little more than 33 milliseconds to make the trip.
What if the links' bandwidth is raised to 155 MB … how long would the same packet take to make the trip?
Exactly the same 33 milliseconds. Why is this? The problem is not bandwidth, it is latency.
The packet cannot travel faster than the speed of light. Simply adding more bandwidth will not improve the latency on the WAN link. The reality is that average latency between Tokyo and New York is closer to 170 milliseconds … almost six times worse (real-world versus lab environments). Even so, a single 170 millisecond delay on application response may not sound so bad.
Unfortunately, that is not the whole story. Most of the applications that run the business are fairly chatty.
The number of roundtrips necessary to download a typical home page is in the hundreds, if not thousands. In the end, distance will contribute to latency, and even small increases in latency can dramatically impact the performance of applications. Adding more bandwidth will not improve performance in a significant way.
TCP
Acceleration
Why EXPAND Networks (Click on each link to find out more)
- Comprehensive
Whether the WAN is used to connect
file servers, email or business applications, Expand delivers a comprehensive
approach to application and protocol acceleration.
- Proven, Measurable Impact
Expand solutions consistently deliver
bandwidth increases of 100% and 400% (with peaks over 1,000%).
- Application-centric
Traditional optimization solutions
are about the network — the Expand solution is about what really matters:
the applications.
- Transparent Operations
Expand’s solution optimizes
traffic transparently without tunneling, simplifying integration into your
networking infrastructure while also preserving investments in other systems.
- All IP
Many WAN Optimization solutions narrowly
focus on only a portion of TCP-based traffic. Expand optimizes non-TCP traffic
(UDP, etc.), as well as difficult interactive applications such as Citrix
and Terminal Services.
- Microsoft Compliance
The Expand solution is part of the
Microsoft Domain so it can strictly maintain all user and document security
and controls while optimizing performance.
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