"As organizations consolidate servers, desktops and applications using virtualization, they place excessive strain on their corporate networks. The combination of aCelera products and VIRTERA professional services create an ideal solution for alleviating this network strain while ensuring that enterprises experience a successful virtualization deployment that meets their core business objectives."
Howard Pavony, CEO of VIRTERA
Certeon's aCelera Virtual Appliance software is based on its patent pending Secure Acceleration Technology™ (SAT) and is the only solution that can meet the complete application delivery speed, security, and scalability needs of the globally distributed enterprise. SAT enables aCelera to use application whole object compression and optimization techniques to securely accelerate HTTP and HTTPS traffic over a WAN.
SAT is made up of two core components:
aCelera with embedded Application Acceleration Blueprints and Object Differencing Engine reduce the amount of data traffic going over the network as well as the transmission time, which significantly improves application response time and application delivery over a WAN.
Certeon's Application Acceleration Blueprints understand the object and messaging semantics of applications and use this knowledge to significantly improve application responsiveness and minimize traffic and chatter over the WAN. Operating at Layer 7 - the Application Layer of the OSI model - the Application Acceleration Blueprints are uniquely able to understand application interactions and identify application data objects in transit without modification to the application. Certeon appliances can then pre-fetch application data and perform object differencing to quickly transmit new application information. The result is an unprecedented reduction in application data going over the network and application response times.
Certeon has released specific Application Acceleration Blueprints to accelerate application delivery capabilities for a variety of applications, including standard HTTP and HTTPS traffic, Microsoft Office SharePoint Server (MOSS), Microsoft Office System, EMC Documentum and eRoom, UGS Solid Edge and Wide Area File Services (WAFS).
To find out more about Certeon's application acceleration solutions go to Solutions.
The ODE provides both a high-performance object store and an object difference and compress engine within Certeon appliances. The disk-based object store uses a proprietary caching algorithm that optimizes I/O performance for changing objects, enabling a single disk access to read and write an entire object of any size delivering sustained high-throughput disk I/O. In addition, efficient object management enables a large number of objects to be concurrently available in the system for difference and compress operations. This means a large number of users and applications can be supported by Certeon appliances for acceleration.
The core of the ODE is the high-speed, single-pass difference and compress engine. Various algorithms are used to provide the best data reduction results based on different object types and their data content while maintaining high throughput and performance. In addition, some object types, such as those that are already compressed (e.g., GZIP), including OpenXML file formats in Office 2007, require data transformation prior to differencing and compression. Certeon is the only application acceleration vendor that can optimize compressed GZIP files, whereas traditional WAN compression or network optimization techniques cannot.
The ODE and the Application Acceleration Blueprints provide the maximum reduction in response time for application delivery in the industry - an improvement of over 95%.
Certeon's innovative Application Acceleration Blueprints and ODE enables its aCelera to deliver truly impressive levels of response time reduction and acceleration to all HTTP/HTTPS applications and collaborative and portal platforms. Go to Certeon's application acceleration solutions to view all of its Application Acceleration Blueprints.
Other WAN Optimization Techniques Supported by Certeon Appliances
Certeon's Application Acceleration Blueprints and ODE work in combination with other WAN optimization techniques for significantly reducing WAN data flow and effectively compressing data. The WAN optimization techniques include, but are not limited to the following methods:
History-Based Packet Compression
Packet compression provides a good basic level of acceleration for all traffic that is not HTTP accelerated. In addition to a non-history-based compression for "other" flows, whereby each packet is compressed using the DEFLATE algorithm, the Certeon appliances include a proprietary history-based packet compression algorithm and history synchronization protocol in the event that packets get lost or are reordered. History-based packet compression takes advantage of differencing data from previous packets to achieve even greater data reduction.Secure Application Acceleration
Certeon was the first solution to securely accelerate all HTTPS traffic. Today, SSL usage is 27% of all traffic and is increasing at 25% per year. With SSL, each client-to-server session is encrypted and secure from eavesdropping and tampering. Since SAT enables the Certeon appliances to work at the application layer, they can accelerate SSL traffic while maintaining end-to-end security from the data center server to the desktop. SAT does this by managing client SSL sessions locally, in the branch office, without compromising session security or the integrity or manageability of the enterprise's key management infrastructure. This allows the Certeon appliances to apply its full suite of application acceleration technology to traffic flowing between clients and servers, as well as to traffic utilizing SSL or HTTPS. In addition, Certeon also encrypts all of the data stored on its disk using standard encryption protocols.Quality of Service (QoS) and Traffic Shaping
Certeon appliances ensure that mission-critical information is prioritized and receives the bandwidth it requires. Traffic is categorized based on application, IP address, and/or port number, and is optimally accelerated, queued, and marked for interoperability with router QoS and MPLS. Traffic shaping uses the Hierarchical Token Bucket algorithm, in which each QoS priority has a configurable committed rate, peer connections have pro rata committed rates, and flows can borrow from underutilized flows up to the ceiling rate supported by the WAN link.Forward Error Correction (FEC)
Certeon appliances can correct for varying levels of packet loss over the WAN without the need for packet retransmission. This improves traffic throughput and application performance over global networks, which often suffer from high packet loss and latency.Patented Technology
Certeon has several patents pending on its Secure Acceleration Technology. These unique inventions enable its appliances to deliver application intelligence to the network to reduce application response times and application delivery unlike any other application optimization solution.Packet Aggregation
Some network devices are packet rate-limited which may be problematic when chatty applications generate a high rate of small packets which then throttle all traffic traversing these packet rate-limited devices. Certeon appliances can be configured to allow smaller network packets entering an IPsec tunnel to be aggregated to make one larger packet, improving WAN bandwidth efficiency.Efficient Web Page Rendering
Certeon's Private Cache Acceleration (PCA) feature helps accelerate small objects typically encountered in web pages for which refresh requests are frequent. Certeon optimizes the handling of small object content by greatly reducing the occurrence of content freshness checking that transpires over the WAN, improving download times over high latency links.
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