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Convergence point convergence method and device

A convergence point and node technology, applied in the field of communication, can solve problems such as the failure of the network to work normally and the inability to send candidate RP advertisement messages

Active Publication Date: 2018-02-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a convergent point convergence method and device, which can solve the problem that when a network device serving as an RP fails as a whole, the network device cannot send a candidate RP advertisement message to the BSR, resulting in the problem that the entire network cannot work normally for a long time

Method used

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  • Convergence point convergence method and device
  • Convergence point convergence method and device

Examples

Experimental program
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Embodiment 1

[0053] The embodiment of the present invention provides an RP convergence method, such as figure 1 As shown, the method includes:

[0054] 101. When the first node detects that the route of the original working RP is unreachable, it sends a notification message to the BSR, where the notification message is used to notify the BSR that the original working RP is in an abnormal state, and the first node is in contact with the The network nodes adjacent to the original working RP can detect whether the original working RP is reachable.

[0055] Specifically, if the first node and the BSR are adjacent, the first node may directly send the notification message to the BSR; if the first node and the BSR are non-adjacent, the first node The node may send the notification message to a neighboring network node, and forward the notification message to the BSR through the neighboring network node.

[0056] The present invention provides two scenarios. In one case, the BSR can directly perceive t...

Embodiment 2

[0063] The embodiment of the present invention provides an RP convergence method, such as figure 2 As shown, the method includes:

[0064] 201. When it is determined that the route of the original working RP is unreachable, the BSR generates a bootstrap message, and the hold time of the original working RP carried in the bootstrap message is 0.

[0065] The method provided in this embodiment is mainly implemented by the BSR in the PIM-SM network. In a PIM-SM network, in general, if the original working RP fails, the BSR can directly perceive that the original working RP is unreachable according to the route convergence.

[0066] It is worth noting that in the scenario of route aggregation, the BSR cannot directly perceive whether the route of the original working RP is reachable. In this scenario, if the original working RP is unreachable, the network node connected to the original working RP can send a notification message to the BSR. The notification message is used to notify the...

Embodiment 3

[0070] in figure 1 , figure 2 On the basis of the illustrated embodiment, the embodiment of the present invention further provides an RP convergence method, such as image 3 As shown, the method includes:

[0071] 301. When the first node detects that the route of the original working RP is unreachable, it starts a first timer, where the first timer is used for timing the original working RP. Wherein, the first node is a network node adjacent to the original working RP, and can detect whether the original working RP is reachable.

[0072] 302. When the first timer expires and the original working RP continues to maintain the route unreachable state within the time period of the first timer, the first node generates a notification message, and the notification message Used to notify the BSR that the original working RP status is abnormal. Wherein, the notification message includes the address information of the first node and the address information of the original working RP.

[0...

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Abstract

The invention discloses a convergent point convergence method and device, which relate to the field of communication and are used to solve the problem that when the overall failure of the network equipment serving as the convergent point RP occurs, the network equipment cannot send a candidate RP advertisement message to the bootstrap router BSR, causing the entire The problem that the network does not work properly for a long time. In the present invention, when the route of the original working RP is unreachable, the first node receives the bootstrap message sent by the BSR, and the hold time of the original working RP carried in the bootstrap message is 0; the first node The node invalidates the original working RP according to the bootstrap message, and activates a candidate RP as a new working RP. The invention is applicable to the field of communication, and is used for realizing convergence of convergence points.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to a method and device for RP (Rendezvous Point, convergence point) convergence. Background technique [0002] PIM-SM (Protocol Independent Multicast-Sparse Mode) is a protocol that can effectively route IP packets to multicast groups across a wide range of networks. The protocol does not rely on any specific unicast. Routing protocol for topology discovery is mainly used in sparse group multicast networks. In a PIM-SM network, generally, a network device is selected as the RP of the PIM-SM network; when a member device in the PIM-SM network needs to obtain a multicast data stream, it needs to send a join message to the RP To join the shared tree (ie, the multicast distribution tree established by the member devices); the multicast source unicasts the multicast data stream to the RP, and the RP sends the multicast data stream to each member device along the shared tree. [0003] In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/761H04L12/751H04L12/24H04L12/721H04L45/16H04L45/02
CPCH04L12/1877H04L45/16H04L45/28H04L41/0668
Inventor 秦玉宋俊骏林尤喜孟庆辉霍志坤
Owner HUAWEI TECH CO LTD
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