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Path establishment method, device and network node

A node and exit node technology, applied in the field of communications, can solve the problem that label resources cannot meet demand, and achieve the effect of reducing the number of labels, saving label resources, and improving creation efficiency

Active Publication Date: 2019-06-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a path establishment method, device, and network node to at least solve the problem that label resources cannot meet the requirements in the related art

Method used

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  • Path establishment method, device and network node
  • Path establishment method, device and network node
  • Path establishment method, device and network node

Examples

Experimental program
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Effect test

Embodiment 1

[0046] The method embodiment provided in Embodiment 1 of the present application may be executed in a terminal, a computer terminal or a similar computing device. Take running on the terminal as an example, figure 1 It is a hardware structure block diagram of a terminal of a path establishment method in an embodiment of the present invention. Such as figure 1 As shown, the terminal 10 may include one or more (only one is shown in the figure) processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) for storing Data storage 104, and transmission device 106 for communication functions. Those of ordinary skill in the art can understand, figure 1 The structure shown is only for illustration, and it does not limit the structure of the above electronic device. For example, the terminal 10 may also include figure 1 More or fewer components shown in the figure 1 Different configurations ar...

Embodiment 2

[0161] In this embodiment, a path establishment device is also provided, which is used to implement the above-mentioned embodiments and preferred implementations, and those that have been described will not be repeated. As used below, the term "module" may implement a combination of software and / or hardware with predetermined functions. Although the devices described in the following embodiments are preferably implemented by software, hardware or a combination of software and hardware is also possible and conceived.

[0162] Picture 12 It is the structural frame of the path establishment device according to the embodiment of the present invention Figure one ,Such as Picture 12 As shown, the device includes: an establishment module 122, which is used to forward the inbound label and / or outbound label of the equivalent FEC as the egress node's host on the first node on the path from the ingress node to the egress node The incoming label and / or outgoing label of the parasitic FEC...

Embodiment 3

[0177] In this embodiment, a network node is also provided, Figure 17 Is a structural block diagram of a network node according to an embodiment of the present invention, such as Figure 17 As shown, the network node includes the path establishment device 172 in the foregoing embodiment.

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Abstract

The present invention provides a path establishment method, device, and network node, wherein the method includes: on the first node on the path from the entry node to the exit node, forwarding the incoming label and The / or outgoing label is used as the incoming label and / or outgoing label of the parasitic FEC of the egress node, and an MPLS-based label switching path LSP corresponding to the parasitic FEC is established. The present invention solves the problem that label resources cannot meet requirements in related technologies, achieves the effects of saving label resources and improving the efficiency of MPLS LSP creation.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular to a method, device and network node for establishing a path. Background technique [0002] Currently, a Label Switched Path (MPLS) based on Multi-Protocol Label Switching (MPLS) based on the Forwarding Equivalence Class (FEC) of the prefix type Is LSP), generally adopts the method of assigning labels per FEC. Due to the large scale of FEC, it occupies very serious label resources, which cannot meet multiple MPLS label distribution protocols (such as Label Distribution Protocol (LDP), The Border Gateway Protocol (Border Gateway Protocol, referred to as BGP), the Resource Reservation Protocol-Traffic Extension (referred to as RSVP-TE) based on traffic engineering, etc. simultaneously create requirements for MPLS LSP. If one kind of signaling occupies too much label resources, it will crowd out the label resource requirements of other signaling. [0003] To solve this problem, a v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/723H04L12/745H04L45/50H04L45/24H04L45/748
CPCH04L45/507H04L45/50H04L45/22H04L12/4641H04L12/66H04L45/748
Inventor 彭少富王会来孙晋松
Owner ZTE CORP
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