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Multicast multicasting method and device

A multicast and multicast address technology, applied in the field of communication, can solve the problem of insufficient security of multicast transmission, and achieve the effect of realizing security

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

AI Technical Summary

Problems solved by technology

[0004] In the PIM-SM network, a client can order each multicast service of the service terminal, which makes the multicast transmission not safe enough

Method used

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  • Multicast multicasting method and device
  • Multicast multicasting method and device
  • Multicast multicasting method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] see figure 2 , figure 2 It is a schematic flow chart of the multicast on-demand method in Embodiment 1 of the present application. The specific steps are:

[0035] Step 201, the router serving as the DR on the receiver side receives a membership report message sent by the client.

[0036] Step 202, if the router determines that the second authority level is not lower than the first authority level, then send a joining message for the multicast address carried in the membership report message to the corresponding RP.

[0037] In this step, the router sends a join message for the multicast address carried in the member report message to the corresponding RP, so as to establish a shared tree RPT to receive the multicast message.

[0038] The second permission level in this step is the permission level configured for the client corresponding to the multicast address; the first permission level is the permission level configured for the service terminal corresponding to...

Embodiment 2

[0042] see image 3 , image 3 It is a schematic flowchart of the multicast on-demand method in Embodiment 2 of the present application. The specific steps are:

[0043] Step 301, the router, acting as the DR on the receiver side, acquires the second authority level when receiving the member report message sent by the client carrying the second authority level, and acquires the information corresponding to the multicast address carried in the member report message. First level of authority.

[0044] In this step, the first permission level obtained by the receiver-side DR includes:

[0045] locally recorded, or

[0046] is obtained from the RP, or

[0047] is obtained from the management server.

[0048] Wherein, what is recorded locally may be obtained and recorded from the RP before receiving the member report message, or obtained and recorded from the management server, or pre-configured.

[0049] The router serving as the DR on the receiver side obtains the first pe...

Embodiment 3

[0062] see Figure 4 , Figure 4 It is a schematic flow chart of the multicast on-demand method in Embodiment 3 of the present application. The specific steps are:

[0063] Step 401, the router serving as the DR on the receiver side receives the member report message carrying the comparison result and obtains the comparison result. The comparison result is the result obtained by the client comparing the second permission level with the first permission level.

[0064] Step 402, the router serving as the DR on the receiver side obtains that the second permission level is not lower than the first permission level according to the comparison result carried in the member report message, and sends to the corresponding RP the information carried in the member report message. A join message for a multicast address.

[0065] In this embodiment, the comparison result in the member report message received by the DR on the receiver side may include: the comparison result that the seco...

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Abstract

The present invention provides a multicast multicasting method. The method comprises: a DR (Designated Router) is taken as a receiver, when the member report message sent by a client is received, if it is determined a second authority grade is not less than a first authority grade, the addition message of a multicast address carried by the member report message is sent to the corresponding RP (Rendezvous Point); the second authority grade is an authority grade configured by the client corresponding to the multicast address; and the first authority grade is an authority grade configured by a business terminal corresponding to the multicast address. On the basis of the same invention conception, the invention further provides a multicast multicasting device, and the device is able to perform grading control of the multicast and realize the safety of the multicast transmission.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a multicast on-demand method and device. Background technique [0002] Protocol Independent Multicast (Protocol Independent Multicast, PIM)-sparse mode (SparseMode, SM) is the most widely used multicast protocol, using the "pull (Pull) mode" to transmit multicast data, usually suitable for relatively scattered distribution of multicast group members, Large and medium-sized networks with a wide range. [0003] PIM-SM assumes that there are no multicast receivers in the network, so the receivers need to actively join. The core of the PIM-SM network is the rendezvous point (RendezvousPoint, RP). The key to PIM-SM multicast forwarding is to establish the shortest path tree (ShortestPathTree, SPT) with the multicast source as the "root" and the RP as the "leaf". And a shared tree (RendezvousPointTree, RPT) with the RP as the "root" and the receiver as the "leaf". [0004] In...

Claims

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Application Information

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IPC IPC(8): H04L29/06
CPCH04L63/102H04L63/105H04L65/611H04L65/612
Inventor 王伟
Owner NEW H3C TECH CO LTD
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