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Label switching path calculating method and label switching path calculating device

A technology of label switching paths and computing devices, applied in the field of LSP computing devices, can solve problems such as not satisfying automatic computing and the like

Active Publication Date: 2015-04-15
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, although the intervention of the LSP path through the explicit path of the TE can prevent the LSP path from bypassing the access layer, and can also separate the active and standby LSPs, the explicit path of the TE requires manual intervention in the attribute description of the TE tunnel. Meet the needs of automatic calculation

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  • Label switching path calculating method and label switching path calculating device
  • Label switching path calculating method and label switching path calculating device
  • Label switching path calculating method and label switching path calculating device

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Embodiment Construction

[0065] Embodiments of the present invention provide an LSP calculation method and an LSP calculation device.

[0066] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, various other embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present invention.

[0067] A layered and domain-based LSP calculation method provided by the embodiment of the present invention is described below. In the embodiment of the present invention, the source node and the target node are ...

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Abstract

Disclosed are a label switching path calculation method and a label switching path calculation device. In the label switching path calculation method of the embodiments of the present invention, by performing hierarchical level and domain value planning on a node in a network in advance, when an LSP is calculated, hierarchical domain information about each node is acquired, and the LSP is calculated using the acquired hierarchical domain information about each node. Since the hierarchical domain information about each node designates a network position where the node is located, it can be avoided that an LSP obtained by calculation reroutes an access layer according to the hierarchical domain information about each node and a satisfaction criterion for the LSP during the LSP calculation process. In addition, the technical solution provided in the embodiments of the present invention needs no manual intervention in the whole LSP calculation process, realizing the automatic calculation of an LSP.

Description

technical field [0001] The present invention relates to the communication field, in particular to a label switching path (LSP, Label Switching Path) calculation method and an LSP calculation device. Background technique [0002] Internet Protocol Radio Access Network (IP RAN, Internet Protocol Radio Access Network) is the current mainstream solution in the field of mobile bearer network. Traffic Engineering (TE, Traffic Engineering) tunneling technology combines hierarchical Quality of Service (QoS, Quality of Service) to guarantee call quality. In the IP RAN solution, according to the high reliability requirements of telecom services for telecom services, public network TE tunnels are usually used to carry virtual private networks (VPN, Virtual Private Network) (including Layer 2 VPN and Layer 3 VPN, namely L2VPN and L3VPN ). The IP RAN network is a layer-by-layer aggregation network, and the network architecture is divided into the access layer, aggregation layer, and co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/723H04L45/50
CPCH04L45/50H04L45/12H04L45/32H04L45/507
Inventor 张力李伟峰游瑞川
Owner HUAWEI TECH CO LTD
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