BIER information transmitting method, receiving method and device

A sending method and technology of tunnel information, applied in the field of communication, can solve the problem of inability to collect BIER information

Active Publication Date: 2017-04-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a sending method, a receiving method and a device of BIER information, so as to at least solve the problem in the related art that the collection of BIER information cannot be realized

Method used

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  • BIER information transmitting method, receiving method and device
  • BIER information transmitting method, receiving method and device
  • BIER information transmitting method, receiving method and device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0114] Figure 10 It is a network diagram of BIER technology in a centralized control scenario according to an embodiment of the present invention, Figure 10 The figure only shows the scenario where all BIER domains are routers supporting BIER technology. and also, Figure 10 All routers supporting BIER technology in the BIER domain interact with the controller, or only the ingress BIER router interacts with the controller, or a specific BIER router interacts with the controller, depending on the actual deployment. . The core controller needs to collect BIER information. Specifically, the BGP module in the core router may collect BIER information for calculation of the BIER path. Specifically, the PCE module in the core router may calculate the BIER path. Figure 11 is a path calculation flow chart according to an embodiment of the present invention, such as Figure 11 As shown, Embodiment 1 of the present invention includes the following steps:

[0115] In step S1102, t...

specific Embodiment 2

[0124] Figure 12 It is a networking diagram of a hybrid scenario in a centralized control scenario according to an embodiment of the present invention. In this embodiment, it is assumed that the device supporting the BIER technology closest to the Non-BFR device has signaling interaction with the controller. Figure 13 is a flow chart of path calculation according to Embodiment 2 of the present invention, such as Figure 13 As shown, Embodiment 2 of the present invention includes the following steps:

[0125] In step S1302, routers supporting BIER technology in the BIER domain notify the controller of their BIER-related information (corresponding to the above-mentioned BIER information) through the BGP-LS protocol.

[0126] Here, the relevant information of BIER includes, but is not limited to: BFR-id, Sub-domain, BSL, one or more related tags, or BIER prefix and other information. It may also include BIER-TE related information, where the BIER-TE related information corres...

specific Embodiment 3

[0133] Figure 14 It is another hybrid scenario networking diagram in the centralized control scenario according to the embodiment of the present invention. In this embodiment, only the ingress node and the egress node of the BIER domain are connected to the controller, and the nearest Non-BFR device supports BIER technology There is no signaling interaction between the device and the controller. In the scenario of this embodiment, it is similar to the second embodiment, except that the tunnel information delivered by the controller is only delivered to the ingress node, and the ingress node notifies the nearest non-BFR device that supports BIER technology through signaling Create a tunnel to pass through the non-BFR device.

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Abstract

The invention provides a BIER information transmitting method, receiving method and device, and the BIER information transmitting method comprises the steps that a BIER node packages the BIER information through employing an extended BGP (boundary gateway protocol)-LS (link state); the BIER node notifies a predetermined node of the BIER information through the extended BGP-LS. According to the invention, the method solves a problem that the collection of BIER information cannot be collected in related technologies, and achieves an effect of collecting the BIER information.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a sending method, a receiving method and a device for BIER information. Background technique [0002] The Internet Protocol (Internet Protocol, referred to as IP) multicast technology realizes efficient point-to-multipoint data transmission in an IP network. It can effectively save network bandwidth and reduce network load, so it is widely used in real-time data transmission, multimedia conference, data copy, interactive network television (Internet Protocol Television, referred to as IPTV), games and simulation. The current multicast technology generally adopts Protocol Independent Multicast (PIM) protocol (including Protocol Independent Multicast-Sparse Mode (PIM-SM), Dense Mode Independent Multicast Protocol (Protocol Independent Multicast). Multicast-Dense Mode, referred to as PIM-DM), Multicast Source Discovery Protocol (Multicast Source Discovery Protocol, referred to as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/721H04L12/741H04L45/16H04L45/42H04L45/52H04L45/74
CPCH04L45/32H04L45/54H04L45/52H04L45/04H04L45/16H04L47/125
Inventor 陈然张征
Owner ZTE CORP
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