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IPv6 multi-domain classification processing method

A processing method and ipv6 address technology, applied in transmission systems, electrical components, etc., can solve problems affecting search time, memory space consumption, etc.

Inactive Publication Date: 2009-06-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a processing method for IPv6 multi-domain classification, which is used to solve the problem that the traditional software method realizes the IPv6 multi-domain classification method, which consumes a large amount of memory space and affects the search time, and then improves the performance in the application. space efficiency

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Embodiment Construction

[0028] figure 1 Shown is the encoded mapping table of the protocol field compression in the present invention; figure 2 Shown is the addressing composition of the IPv6 global unicast address; Figure 4 Shown is the table structure diagram and table entry definition in the present invention. The technical solution of the present invention is: aiming at the crux of the problem faced by the IPv6 classification, that is, the multi-dimensional number and the length of the IPv6 rule entry (the five-tuple is 296bit), the rule domain is properly compressed and merged. In particular, the clustering and hierarchical features of IPv6 address addressing are used to search the IPv6 addresses in segments. The content of the first 16-bit IPv6 address field participates in the search together with the contents of the other three rule fields, and the host id field is independent; correspondingly, a three-level table structure is adopted: the first level is the basic hash table (base-hash )...

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Abstract

The invention discloses an IPv6 multi-domain classification method, which is used to effectively reduce the memory space consumption caused by the traditional software method to realize the IPv6 multi-domain classification method. The characteristics of IPv6 address addressing can be clustered and layered, and segmented IPv6 addresses can be searched.

Description

technical field [0001] The invention relates to the field of data classification processing, in particular to a classification processing method for realizing service quality control in the field of data communication. Background technique [0002] Classification processing technology is widely used in firewall, policy-based routing, VPN (Virtual Private Network, virtual private network) and QoS (Quality of Service, quality of service) control. Usually, the classification processing rule includes the content of five domains of the data packet header: source IP address, destination IP address, source port number, destination port number and protocol type. [0003] With the development of high-speed networks and diversified services, especially the gradual commercialization of IPv6 (Internet Protocol Version 6, IPv6) networks, the classification processing method needs to support IPv6. A public document (Design of Multi-field IPv6 Packet Classifiers Using Ternary CAMs, IEEE 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
Inventor 刘丽娜甘振锦李华驿熊韬
Owner ZTE CORP
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