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Method and device for multicast flow control on the basis of point-to-multipoint tunnel

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

Active Publication Date: 2016-05-18
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Method and device for multicast flow control on the basis of point-to-multipoint tunnel
  • Method and device for multicast flow control on the basis of 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 invention provides a method for multicast flow control on the basis of a point-to-multipoint tunnel. The method comprises: when a control node receives a flow control cutting message, if it is determined that all the flow control cutting messages sent by the next hop device are received and the node is not an ingress, the flow control cutting message is sent to the ingress direction; and if it is determined that all the flow control cutting messages sent by the next hop device are not received, a multicast flow is controlled not to send the flow control cutting messages to the next hop device. Base on the same invention conception, the invention further provides a device for multicast flow control on the basis of a point-to-multipoint tunnel. The device is used for controlling the forwarding of the multicast flow to save the bandwidth of a 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] Data Virtual Private Network (Virtual Private Network, VPN) is a technology that realizes data transmission in a VPN network. One of the most important is Multiprotocol Border Gateway Protocol (MultiprotocolBorderGatewayProtocol, MP-BGP) mode data VPN, which uses Resource Reservation Protocol (ResourceReservationProtocol, RSVP) Point-to-MultiPoint (P2MP) tunnel as the 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 established, the multic...

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Application Information

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Patent Type & Authority Applications(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