Method for realizing distributed application tier conversion gate-link in network processor

A technology of network processor and application layer, which is applied in the direction of network connection, data exchange network, digital transmission system, etc., and can solve problems such as difficult to upgrade, low efficiency, and complexity
CN1275443CInactive Publication Date: 2006-09-13INST OF COMPUTING TECH CHINESE ACAD OF SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF COMPUTING TECH CHINESE ACAD OF SCI
Publication Date
2006-09-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to method of domain name service (DNS) conversion gateway as well as file transfer protocol (FTP) conversion gateway in network processor platform. Steps of the method are as following: (1) receiving port receives data packet; (2) converting address and protocol for received data packets by micro engine; (3) checking port number of protocol, structuring data packet for DNS packet or FTP command packet found by using 'taking along' technique; (4) SltongARM calls module of DNS conversion gateway to process DNS packet, and calls module of FTP conversion gateway to process FTP command packet; (5) data packet processed by conversion module of application layer gateway is sent to transmission queue to be transmitted. Practical testing verifies that NAT-PT realized by the invented method is capable of processing accesses between IPv4 network and IPv6 in real time.
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Description

technical field

[0001] The invention relates to the technical field of computer network communication, in particular to a method for implementing a distributed application layer conversion gateway inside a network processor, and is a method for improving IPv4 (Internet Protocol Version 4) and IPv6 (Internet Protocol Version 4) on a network processor platform. 6) Protocol conversion performance, a method to realize the conversion processing of the distributed application layer in the chip. Background technique

[0002] IPv6 protocol is the next-generation Internet protocol that replaces IPv4 protocol, and it has many new features and functions. However, IPv6 is not compatible with the widely used IPv4 protocol on the Internet, for example, the address length and packet header format are different, so the transition from IPv4 to IPv6 will be a long-term process. How to achieve a smooth transition in this process is the first problem that people who adopt the IPv6 protocol fac...

Claims

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