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A method and device for multicast flow control based on point-to-multipoint tunnel

A multicast stream and tunnel technology, applied in the field of communication, can solve the problem of wasting bandwidth and achieve the effect of saving bandwidth

Active Publication Date: 2019-04-19
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present application provides a multicast flow control method and device based on a point-to-multipoint tunnel to solve the problem of wasting bandwidth when nodes that do not need to forward multicast receive multicast

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  • A method and device for multicast flow control based on point-to-multipoint tunnel
  • A method and device for multicast flow control based on point-to-multipoint tunnel
  • A method and device for multicast flow control based on point-to-multipoint tunnel

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] An embodiment of the present application provides a multicast flow control method based on a point-to-multipoint tunnel, which is applied to a control node in a multi-homing network, and the control node is a node other than an egress node. Disable the traffic forwarding function on the upstream node of the egress node that does not need to receive traffic, that is, control the multicast stream to no longer be forwarded to the downstream node.

[0027] The nodes other than the egress node in this embodiment include: the in node, and the nodes between the in node and the egress node. For the convenience of description, nodes other than nodes are referred to as control nodes below.

[0028] see figure 1 , figure 1 It is a schem...

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Abstract

The present application provides a multicast flow control method based on a point-to-multipoint tunnel. The method includes: when the control node receives the flow control clipping message, if it is determined that the flow control clipping message sent by all next-hop devices has been received If the current node is not an ingress node, it will send a flow control tailoring message to the ingress node; if it is determined that the flow control tailoring message sent by all next-hop devices has not been received, the control multicast flow will not be sent to the Control the sending of the next hop device of the tailoring message. Based on the same inventive idea, this application also proposes a multicast flow control device based on point-to-multipoint tunnels, which controls the forwarding of multicast flows and saves the bandwidth of the multi-homing network.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a multicast flow control method and device based on a point-to-multipoint tunnel. Background technique [0002] A data virtual private network (Virtual Private Network, VPN) is a technology that realizes data transmission in a VPN network. One of the important ones is Multiprotocol Border Gateway Protocol (Multiprotocol Border Gateway Protocol, MP-BGP) mode data VPN, that is, using Resource Reservation Protocol (Resource Reservation Protocol, RSVP) point-to-multipoint (P2MP) The tunnel acts as a bearer tunnel. [0003] As for the destination address of the tunnel, it can be manually specified or determined by MP-BGP automatic discovery. After the destination address is determined, a tunnel to the destination will be created, and the multicast stream will be forwarded to the destination along the tunnel. [0004] Once the tunnel to the corresponding destination is establ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/801H04L12/911H04L12/927H04L12/733H04L45/122H04L47/80
CPCH04L45/122H04L47/10H04L47/806H04L47/825
Inventor 赵昌峰
Owner NEW H3C TECH CO LTD