Extreme Silicon Technology switch realizes hardware of content recognition

When the optical network technology such as DWDM and frequency division switch rapidly increases the network capacity, the bandwidth becomes abundant. However, how to make better use of bandwidth, how to the application of the Internet, content, and not just signal, data frame management, become the focus of service provider. Because in the case of sufficient bandwidth, the network layer will no longer be the main problem, improve the network service level will focus on how to solve the transport layer to the application layer of the problem, that is, content recognition network. Therefore, it is very important to manage network technology specifically for the transport layer to the application layer.

Recently, extreme to market with the latest silicon technology implementation of the application switch, completely changed the network experts long-term difficult to resolve to improve the 4-layer ~7 layer Exchange performance of the technical dilemma, so that the content recognition network is fully realized by the hardware.

In fact, there are three types of software available for content recognition, according to extreme experts: devices built on PC platforms, third-tier switches with general-purpose CPUs, and systems based on network processors. These products are acceptable to the user if they are simply done with a simple traffic exchange function. But this simple feature does not allow the network administrator to adjust the network and get a profit-value application management. This is especially true when it experts try to implement more intelligent swaps involving application-tier data using software-based Content-recognition devices, such as URL switching for improved performance of high-end networks, and persistent cookie tracking for users in e-business applications, Because the information required by these functions is buried deep in the packet, the software based content-recognition device cannot transfer the computing power in any real-time manner to complete the switching task, thus causing the delay in responding to the service to the end user.

In order to solve the bottleneck of the content identification technology, extreme will apply the switching technology to all hardware, remove the complex software, the common CPU and the network processor, and implement all the network functions by applying the switch--including the analysis, termination, initiation and even modification of the gigabit TCP session of the line speed. This simple solution allows service providers and enterprise users to freely set up network applications and any rules required by the business without sacrificing the speed of gigabit performance. In the case of multimedia applications, the cost advantage of processing hundreds of thousands of of users to a video server is as obvious as a session.

Extreme's SummitPx1 application switch is the first to implement this latest technology, which supports a fully complementary layer seventh application switching capabilities, including the ability to parse Web requests, and the ability to connect to the most appropriate Web server with the requested content and server capabilities.

In addition, the SUMMITPX1 application switch can maintain a line-speed gigabit performance regardless of how many forwarding rules are set for the content.

SUMMITPX1 the server selection algorithms for the switch include loops, weighted loops, minimum connections, and weighted minimum connections, not only to track client IP records, but also to hash the client's state settings and automatically detect and track cookies. Handles cookies for server identification and supports persistent Secure Sockets Layer session identities.

Using extreme Application Exchange technology can make maximum use of network resources, so that the server-based performance of other data center applications is possible, especially for the future network design can bring some strategic changes, such as: the backbone of the ability to identify content. Placing application switches at the core or allocation level, rather than the servers immediately below, enables network managers to better distribute network resources at lower cost. Mobile additions and changes involve fewer devices, more equipment to be purchased, more centralized devices, and virtual load balancing to extend the user's network to an unprecedented level, making it a reality to manage several sites in one network.