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Method and device for acquiring routing information

A routing and acquisition unit technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve problems such as waste of memory resources, reduce resource consumption, improve processing efficiency, and reduce memory usage.

Active Publication Date: 2011-04-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in IPv6 routing entries, there are a lot of situations where the relationship between routing and next-hop information is many-to-one, that is, the next information of multiple routes is the same, and the next-hop information is very repetitive, so , resulting in a waste of memory resources

Method used

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  • Method and device for acquiring routing information
  • Method and device for acquiring routing information

Examples

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Embodiment 1

[0060] In this embodiment, aiming at the situation of adding a new routing entry, the processing flow for updating the routing table and the next hop table of the routing device is described. The implementation process is as follows: Figure 4 shown, including the following steps:

[0061] Step 401: After obtaining the new routing entry, insert a new node into the routing table, and write the routing information of the new routing entry into the new node, and then perform step 402;

[0062] Here, the way for the routing device to obtain the routing entry is exactly the same as the way for the routing device to obtain the routing entry in the prior art, for example: the routing device can obtain the routing entry according to the routing configuration information of the network management, and the routing device can also obtain the routing entry according to the routing protocol , by learning the routing entries, the routing device can also receive the routing entries broadcast...

Embodiment 2

[0073] This embodiment describes the processing flow of updating the routing table and the next hop table of the routing device for the situation of deleting the routing entry. The implementation process is as follows: Figure 5 shown, including the following steps:

[0074] Step 501: When a routing entry needs to be deleted, determine whether there is a routing entry corresponding to the routing entry that needs to be deleted in the routing table, if yes, perform step 502, otherwise, perform step 507;

[0075] Here, the timing to delete a certain routing entry is exactly the same as the timing for deleting a routing entry in the prior art. For example, if the network manager needs to delete a routing entry, the configuration information of the routing entry will be deleted. According to the deleted configuration information, the routing entries that need to be deleted can be obtained. The routing device can also obtain the routing entries that need to be deleted through learn...

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Abstract

The invention discloses a method for acquiring routing information. The method comprises the following steps of: establishing and real-time updating a routing table containing the routing information and a corresponding next hop pointer and a next hop table containing next hop information and a corresponding quoting count value; and when a data packet needs sending, acquiring the next hop information according to the routing table and the next hop table. The invention discloses a device for acquiring the routing information at the same time. The method and the device can effectively reduce the occupation of a memory, and further can reduce the consumption of resources.

Description

technical field [0001] The present invention relates to the technology of Internet Protocol Version 6 (IPv6, Internet Protocol Version 6), in particular to a method and device for obtaining routing information in IPv6. Background technique [0002] IPv6 is designed by the Internet Engineering Task Force (IETF, Internet Engineering Task Force) to replace the current version of the Internet Protocol (IP, Internet Protocol), namely: the fourth version of the Internet Protocol (IPv4, Internet Protocol Version 4), the next generation IP. [0003] The routing table is mainly used to record the path of network information from the source to the destination. figure 1 It is a schematic diagram of the traditional IPv6 routing table structure, from figure 1 It can be seen from the figure that in the traditional IPv6 routing storage system, the IPv6 routing table carries the next hop information used to guide forwarding, that is, each routing entry contains the next hop information, a...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L45/74
Inventor 张明之
Owner ZTE CORP
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