Blue Coat Brings WAN Optimization to Road Warriors

Apr 10, 2007

The new SG Client extends performance and security benefits to remote users, while improved traffic visibility and reporting ease management and help make a business case for application-acceleration technology, Blue Coat says.

The latest release of Blue Coat Systems' SG line of WAN optimization appliances, launched April 9, addresses a trend the company sees toward more strategic implementations.

Blue Coat added a new client capability to the software that extends the performance and security benefits of the SG appliances to individual users.

"If you are on the road and connecting to the Internet from a hotel or a Starbucks, you are a long distance from your application, so you need acceleration, but you are outside the control of the security mechanisms your enterprise might have in place. So you need to enhance the performance and control of that asset," said Chris King, director of strategic marketing for Blue Coat, in Sunnyvale, Calif.

The first version of the SG Client, which is the first deliverable of a new architecture Blue Coat announced late in 2006, focuses on improved application performance for laptop users or users accessing applications from a home PC.

Specifically, the new client, shipping now, provides CIFS (Common Internet File System) object caching and protocol optimization, TCP optimization, and compression, and it works with existing customer VPNs.

The next release of the SG Client, due in the fall of 2007, will add more acceleration techniques for more applications, performance monitoring and content filtering.

To make the SG appliances easier to deploy and manage, Blue Coat allowed them to operate in transparent and translucent tunnel modes to make IP addresses and NetFlow ports visible for routing schemes, firewalls and network management tools such as those that gather Cisco Systems Layer 4 NetFlow statistics.

The increased visibility addresses a problem introduced by most WAN optimization techniques, according to King. "Customers have existing management tools and infrastructure that depend on Layer 3 or 4 information, but most WAN optimizations obscure that information flow, and policy-based routing schemes don't work because WAN optimization tools use tunnels that obscure all that information," he said.

Blue Coat also improved reporting for the SG appliances by creating a dashboard that shows how much compression and acceleration each application is getting. By showing the improvement in traffic speed, the dashboard makes it easier to "articulate the business case for deploying this enterprisewide," King said.

To improve availability, Blue Coat also added dynamic clustering techniques in which a pool of SG appliances is aware of any SG appliance added to the pool and can automatically reassign workloads. No provisioning changes are required and appliances as they are added will "understand" their role in the pool or cluster.

To improve the security of a network of SG appliances, Blue Coat added a new digital birth certificate to each appliance that incorporates its unique serial number. With that digital birth certificate, "We now have the ability to create a fully authenticated and authorized WAN optimization network, because we can authenticate the box you are going use to create a WAN optimization network," King said.

This also "gives us the ability to nail up encrypted tunnels between the appliances" to protect data when the application doesn't provide its own encryption, King said.

Copyright 2007 by Ziff Davis Media, Distributed by United Press International

Explore further: Blink, point, solve an equation: Introducing PhotoMath

add to favorites email to friend print save as pdf

Related Stories

MasterCard, Zwipe announce fingerprint-sensor card

41 minutes ago

On Friday, MasterCard and Oslo, Norway-based Zwipe announced the launch of a contactless payment card featuring an integrated fingerprint sensor. Say goodbye to PINs. This card, they said, is the world's ...

Plastic nanoparticles also harm freshwater organisms

2 hours ago

Organisms can be negatively affected by plastic nanoparticles, not just in the seas and oceans but in freshwater bodies too. These particles slow the growth of algae, cause deformities in water fleas and impede communication ...

Atomic trigger shatters mystery of how glass deforms

2 hours ago

Throw a rock through a window made of silica glass, and the brittle, insulating oxide pane shatters. But whack a golf ball with a club made of metallic glass—a resilient conductor that looks like metal—and the glass not ...

US company sells out of Ebola toys

10 hours ago

They might look tasteless, but satisfied customers dub them cute and adorable. Ebola-themed toys have proved such a hit that one US-based company has sold out.

UN biodiversity meet commits to double funding

11 hours ago

A UN conference on preserving the earth's dwindling resources wrapped up Friday with governments making a firm commitment to double biodiversity aid to developing countries by 2015.

Recommended for you

Report: Better shields needed for private tax data

9 minutes ago

Federal investigators say the IRS and the states should improve how they protect the security of confidential tax information of people getting benefits under the 2010 health care law.

Some online shoppers pay more than others, study shows

38 minutes ago

Internet users regularly receive all kinds of personalized content, from Google search results to product recommendations on Amazon. This is thanks to the complex algorithms that produce results based on users' profiles and ...

Comcast wins more Internet customers, ad sales up

2 hours ago

Comcast Corp.'s third-quarter net income jumped 50 percent in the third quarter, helped by a one-time tax settlement, growth in Internet subscribers and fewer defectors from its cable service.

Christian Bale to play Apple's Steve Jobs

2 hours ago

Oscar-winner Christian Bale—best known for his star turn as Batman in the blockbuster "Dark Knight" films—will play Apple co-founder Steve Jobs in an upcoming biopic.

Netflix to stream new online TV series, 'Bloodline'

2 hours ago

Fresh from commercial and critical success with hit shows "House of Cards" and "Orange is the New Black," Netflix on Thursday announced a new online series, "Bloodline," set for release in March.

User comments : 0