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A method and system for realizing shared routing capacity on a dual-stack router

A router and routing technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as low utilization of equipment resources, increased equipment costs, and impact on equipment stability, achieve simple and safe management, and reduce hardware. cost and the effect of improving routing capacity

Inactive Publication Date: 2011-11-30
OPEN INVENTION NEWTORK LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is a simple, direct and effective method to provide greater routing capacity by increasing hardware resources, but this method has the following disadvantages: a) the cost of equipment increases; b) for commercially available equipment, there is no Operability; c) The resource utilization of the equipment is low. In the transition stage from the IPv4 network to the IPv6 network, the size of the IPv4 routing table of the entire network is different from that of the IPv6 routing table, and it is still impossible to correctly estimate how much routing table should be reserved for. Storage resource pool will inevitably cause waste of resources
Although the reallocation of device hardware resources can be realized by upgrading the software, different software versions need to be produced for different application scenarios, and with the development of the network, it may be necessary to update the device software frequently, which will affect system maintenance. Brings complexity and may also have an impact on device stability

Method used

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  • A method and system for realizing shared routing capacity on a dual-stack router
  • A method and system for realizing shared routing capacity on a dual-stack router
  • A method and system for realizing shared routing capacity on a dual-stack router

Examples

Experimental program
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Embodiment 1

[0033] There is no need to make any changes to the existing IPv4 routing table and IPv6 implementation algorithms, only modify the process of applying for storage resources when adding routing entries, and the process of reclaiming storage resources when deleting routing entries. The routing table lookup algorithm does not require any changes at all.

[0034] When adding a routing entry, no matter what kind of routing entry is added, storage resources are applied for from the same shared resource pool. 1) If an IPv4 routing entry is added, the applied for storage resource is added to the IPv4 routing table as an IPv4 routing tree node. 2) If an IPv6 routing entry is added, the applied for storage resource is added to the IPv6 routing table as an IPv6 routing tree node.

[0035] When deleting a routing entry, regardless of whether the deleted IPv4 routing entry or IPv6 routing entry is deleted, the storage resource will be recycled to the shared storage resource.

[0036] The r...

Embodiment 2

[0038] This embodiment corresponds to the IPv4 / IPv6 unified routing table mentioned in the present invention. It is necessary to adjust the structure of the routing table and the processes of adding, deleting, and table lookup, so as to improve the utilization rate of storage resources to a greater extent. The basic idea is to put IPv4 routing entries and IPv6 routing entries into a unified routing table. On the routing tree corresponding to the unified routing table, each node can have both IPv4 routing prefixes and IPv6 routing prefixes. can exist at the same time.

[0039] Figure 4 is a subtree fragment in the routing table created by using this embodiment. In the figure, a circular node represents an empty routing tree node, a square node represents a routing tree real node, and a rectangular box represents a routing prefix node. The so-called empty node means that there is only a pointer to the next-level routing tree node on the routing tree node, and no real routing p...

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PUM

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Abstract

The invention discloses a method and a system for realizing sharing route capacity on a dual-stacker router, and the method and the system realize sharing route capacity by arranging a shared resource pool of an IPv4 route and an IPv6 route and providing a processing mechanism of adding route items and deleting route items. The method and the system can effectively improve the utilization ratio of the memory resource of the router, can effectively reduce the maintenance complexity of the router and can flexibly configure the IPv4 route capacity and the IPv6 route capacity supported by the router equipment according to actual needs.

Description

technical field [0001] The invention relates to a method for sharing routing capacity between IPv4 and IPv6 on a router supporting IPv4 (Internet Protocol version 4) and IPv6 (Internet Protocol version 6) dual protocol stacks, and relates to the technical field of computer network communication. Background technique [0002] With the development of society and the progress of science and technology, more and more people start to use the Internet, and various services on the Internet emerge in an endless stream. The IPv4 protocol, which has always been the core technology of the Internet, can no longer meet people's needs for the Internet. The network addresses provided by the IPv4 protocol are about to be exhausted. In order to solve this problem and make the Internet develop better to meet the needs of human beings, the IPv6 protocol that provides more network addresses and solves the shortcomings of the existing IPv4 protocol has been proposed, and has been used in many co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/701
Inventor 赵丰收郭树波姚俊
Owner OPEN INVENTION NEWTORK LLC