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Multicast communication method and device for broadband remote access server

A technology of remote access and communication method, which is applied in the field of broadband remote access server multicast communication, which can solve the problems of increasing downstream network load, increasing downstream network load, increasing BRAS load, etc., and achieving the effect of reducing load

Active Publication Date: 2014-12-31
HUAWEI TEHCHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 3. Specific group query messages arrive at the downstream network, increasing the downstream network load (when a large number of users leave the multicast group, the BRAS device will send a large number of specific group query messages to the downstream network, increasing the downstream network load)
[0009] 4. Since the BRAS needs to process user online request messages sent by multicast users, when a large number of users leave the multicast group, the BRAS needs to send a large number of specific group query messages, which further increases the load on the BRAS. BRAS is unable to process programs in a timely manner, which will cause some users to fail to order programs

Method used

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  • Multicast communication method and device for broadband remote access server
  • Multicast communication method and device for broadband remote access server

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Experimental program
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Embodiment 1

[0026] The embodiment of the present invention provides a BRAS multicast communication method. The BRAS works in a multicast copy by-session mode, see figure 1 , figure 1 It is a flowchart of a BRAS multicast communication method provided by an embodiment of the present invention; the method includes:

[0027] 101: Receive a first user offline request message, where the first user offline request message includes the first user's Internet protocol (Internet protocol, IP) address and the first multicast group address;

[0028] In the specific implementation of the embodiments of the present invention, there may be multiple implementation manners, and the present invention does not make specific limitations. For example: BRAS receives a leave request message (leave) based on Internet Group Management Protocol version one (IGMP v1) from the first user, or based on IGMP v2, or based on IGMP v3. Line request message. The first user offline request message includes the first user's IP a...

Embodiment 2

[0053] The embodiment of the present invention also provides a BRAS multicast communication device, and the BRAS works in a user-based replication mode. The BRAS multicast communication device can be implemented by the BRAS multicast communication method provided in the first embodiment. See figure 2 , figure 2 It is a schematic diagram of a BRAS multicast communication device provided by an embodiment of the present invention, and the BRAS multicast communication device includes:

[0054] The first user offline request message receiving unit 201: configured to receive a first user offline request message, the first user offline request message including the first user's IP address and the first multicast group address;

[0055] Query unit 202: used to query whether the first BRAS user registration information corresponding to the first multicast group address contains the first user index number, and the first user index number corresponds to the IP address of the first user o...

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Abstract

The embodiment of the invention provides a multicast communication method for a broadband remote access server (BRAS). BRAS w in the mode of copying according to users. The method comprises the following steps: receiving an offline request message of a first user, wherein the offline request message of a first user comprises the Internet protocol (IP) address and the first group of multicast addresses of the first user; inquiring whether a first BRAS user registration information corresponding to the first group of multicast addresses contains a first user index number, wherein the first user index number corresponds to the IP address of the first user one by one; and when the first BRAS user registration information contains the first user index number, deleting the first user index number in the first BRAS user registration information. In addition, the embodiment of the invention also provides a corresponding BRAS multicast communication device. According to the BRAS multicast communication method and device, the technical problem that BRAS needs to send a specified query message in order to maintain the multicast communication of other users in a multicast group when the users of the multicast group leave the multicast group if a scene is copied according to users is multicast can be solved, and the load of BRAS and downstream network is favourable to lower.

Description

Technical field [0001] The embodiment of the present invention relates to multicast technology, in particular to a method and device for multicast communication of a broadband remote access server. Background technique [0002] Multicast is a network data transmission technology with a wide range of application prospects. The advantages of multicast are fully demonstrated in the following scenario: a sender transmits the same data to multiple receivers at the same time, and only a copy of the same data packet is required. That is, the multicast technology improves the efficiency of data transmission and reduces the possibility of congestion in the backbone network. For example, in the field of video-on-demand, when different users need to watch the same program, through multicast technology, only one piece of video traffic can be directed to the user, which can eliminate traffic redundancy and greatly save the bandwidth of the gaming equipment. Unicast requires a piece of video...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18H04L12/70H04L45/16
Inventor 蔺永红
Owner HUAWEI TEHCHNOLOGIES CO LTD