Ethernet exchanger and its service processing method

Abstract

The Ethernet exchanger capable of realizing intelligent business processing includes ASIC chip for distributing and transmitting received message; network processor connected to the ASIC chip in closed-loop mode for processing message from the ASIC chip and returning the processed message to the ASIC chip; and CPU connected to the ASIC chip and the network processor for managing and controlling the ASIC chip and the network processor. The present invention also provides one kind of utilizing Ethernet exchanger in realizing intelligent business processing. The present invention makes it possible to increase intelligent business processing function to Ethernet exchanger while maintaining its high performance of processing common Ethernet message, and this makes Ethernet exchanger adaptive to various networking environment and possessing great network flexibility.

Description

field of invention [0001] The invention generally relates to network communication technology, in particular to an Ethernet switch capable of realizing intelligent service processing in the network and an intelligent service processing method thereof. Background technique [0002] At present, the Ethernet switch technology represented by the three-layer switch plays an important role in the broadband network construction. With the wide application of the Ethernet switch technology, the requirements for the networking capability of the Ethernet switch are getting higher and higher. People not only require Ethernet switches to quickly forward Layer 2 and Layer 3 messages, but also expect them to be able to forward some intelligent services according to the needs of network networking, such as: using Ethernet switches to realize NAT (Network Address Translation) ), realize the detection of some illegal messages, realize the management authentication of users, and so on. If th...

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Problems solved by technology

[0004] But, for the existing Ethernet switch with above-mentioned main structure, its main shortcoming is, because ASIC chip is only to common two-layer at present, three-layer message carries out forwarding processing, and can't carry out the processing of some intelligent services (such as policy routing, exchange of the fourth and seventh layers of the firewall, and many other complex business processes), so the use of figure 1 The Ethernet switch with the main structure shown is correspondingly unable to realize the intelligentization of business processing

The main reasons for this situation are as follows: 1) The current process of ASIC processing messages is mainly based on hardware logic, and it is very difficult to complete some complex business processing through hardware logic. Even if it can be realized, other The cost is also quite high

2) Many services are proposed by network users in real time, but using ASIC for development requires a long cycle, and its response speed is also slow

In addition, because many LAN switch (LANSWITCH) manufacturers use commercial ASIC chips, it is impossible to use these ASICs to complete the processing of special services.

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