A multicast on-demand method and device

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

Active Publication Date: 2019-08-16
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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  • A multicast on-demand method and device
  • A multicast on-demand method and device
  • A multicast on-demand 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 the 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 ...

Embodiment 2

[0042] see image 3 , image 3 It is a schematic flow chart 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, obtains the second permission level when receiving the membership report message sent by the client carrying the second permission level, and obtains the multicast address corresponding to the membership 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 locally recorded 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 receiver-side DR obtains the first permission level correspond...

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 on-demand method. The method includes: as the receiver side DR, when receiving the member report message sent by the client, if it is determined that the second authority level is not lower than the first authority level, send The corresponding rendezvous point RP sends a joining message for the multicast address carried in the member report message; wherein, the second permission level is the permission level configured for the client corresponding to the multicast address; the first The authority level is the authority level configured for the service terminal corresponding to the multicast address. Based on the same inventive idea, this application also proposes a multicast on-demand device, which can control multicast hierarchically and realize the security of 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 multicast group members with relative distribution Dispersed, wide-ranging large and medium-sized networks. [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 (Rendezvous Point, RP). The key to PIM-SM multicast forwarding is to establish the shortest path tree (Shortest Path Tree, RP) with the multicast source as the "root" and the RP as the "leaf". SPT), and a shared tree (Rendezvous Point Tree, RPT) with the RP as the "root" and the receiver as the "leaf". [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/102H04L63/105H04L65/611H04L65/612
Inventor 王伟
Owner NEW H3C TECH CO LTD
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