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Service protection method and system for resource-constrained network

A service protection and resource-limited technology, applied in the field of fault handling methods and systems for load balancing paths, and can solve problems such as service failures

Active Publication Date: 2020-07-07
CHINA TELECOM CORP LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] A technical problem to be solved by the present invention is: how to alleviate the problem of partial service failure due to the full routing table of the intermediate node

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  • Service protection method and system for resource-constrained network

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] At present, the limited storage capacity of low-power 6Lowpan nodes can easily saturate the routing table of 6LR sensor nodes, which will cause the following problems: Take 6Lowpan as an example, such as figure 1 As shown, after 6Lowpan automatically generates a directed acyclic topology, the ...

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Abstract

The invention discloses a service protection method and system for a resource-limited network, and relates to the technical field of the Internet. The method includes: the first node obtains the message that the routing table of the second node is full, and the second node is the upstream parent node of the first node; the first node sends the routing table information of the first node to the third node, and the The third node is an upstream parent node whose network level is the same as that of the second node and whose routing table is not full. Therefore, the problem of partial service failure caused by the full routing table of the intermediate node is alleviated.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a fault handling method and system for a load balancing path. Background technique [0002] IPv6-based low-power wireless personal area network 6Lowpan, based on the Internet of Things IPv6 protocol of the next generation Internet standard, compresses and optimizes traditional IPv6 packets for the low-power environment of the Internet of Things, [0003] The 6LN (6Lowpan Node, Lowpan leaf node) in the current 6lowpan network will be connected through the directed acyclic topology formed by 6LR (6LowpanRouter, 6Lowpan router) or 6LBR (6Lowpan Border Router, 6Lowpan border router), and the 6LR sensor carrying the sensor Nodes save route advertisements from downstream nodes. The sensor RAM capacity of various 6Lowpan sensor nodes is different. For example, the routing table capacity of NanoStack 2.0CC2530 in the low-power lossy network routing protocol is only 40. When the do...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04W40/02H04L45/74
CPCH04L45/54H04W40/02
Inventor 孙剑平
Owner CHINA TELECOM CORP LTD
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