Method, device and system for SSM multicast

A mode group and multicast technology, applied in the field of network communication, can solve the problems of heavy reconfiguration workload, high maintenance cost, bandwidth occupation of users and routers, etc., and achieve the effect of facilitating maintenance and less workload.

Inactive Publication Date: 2008-03-19
HUAWEI TECH CO LTD
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 1. In SSM mode multicast, the SSM Mapping table should be uniformly deployed throughout the network. When a source or a group needs to be changed, the SSMMapping table needs to be reconfigured for all edge routers that select this source or group. In the current network In the system, the number of edge routers is very large, the workload of reconfiguration is heavy, and the maintenance cost is high
[0010] 2. When multiple users share a group and want to use different sources, the bandwidth between the user and the router will be heavily occupied
For example, user 1 and user 2 share a group G1

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method, device and system for SSM multicast
  • Method, device and system for SSM multicast
  • Method, device and system for SSM multicast

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0068] (1) Example 1

[0069] 3, the first embodiment of the present invention provides a method for implementing SSM mode multicast based on user authorization information, and the method includes the following steps:

[0070] Step 301: The user uses the 802.1X protocol for authentication, and sends an online request message EAPOL-Start to the broadband access device BRAS device;

[0071] Step 302: The BRAS device replies the response message EAP-Request to the user, requires the user to send an authentication message, and records the MAC address or IP address of the user;

[0072] Step 303: The user sends an EAP-Response message to the BRAS device, which carries the user's authentication information;

[0073] Step 304: The BRAS sends an authentication request message Access-Request to the Radius server, which carries the authentication information of the user;

[0074] Step 305: The Radius server verifies the user according to the preset user information, and after passing the a...

Example Embodiment

[0088] (2) Example 2

[0089]The address mapping table can be statically configured under the domains in the BRAS. The BRAS configures an address mapping table for each domain according to the authorization information of the domain. The address mapping table only contains the source customized by the domain and the group mapped to the source. The implementation of the present invention Example 2 provides a method for implementing SSM mode multicast based on domain-based authorization information, as shown in Figure 4.

[0090] Steps 401 to 404 of this method are the same as steps 301 to 304 in the first embodiment;

[0091] Step 405: The Radius server verifies the user according to the preset user information, and after passing the authentication, issues the user's authorization information Access-Accept to the BRAS;

[0092] Step 406: The BRAS issues a user authentication success message EAP-Success to the user;

[0093] Step 407: The user uses the IGMPv2 / MLDv1 version of the pr...

Example Embodiment

[0100] (3) Example 3

[0101] Both the address mapping table is configured according to user customization in the authorization information in the Radius server, and the address mapping table is configured under the domain of the BRAS according to the authorization information of the domain. This embodiment includes the following steps:

[0102] Step 501 to step 507 are the same as step 301 to step 307 in the first embodiment;

[0103] Step 508: The BRAS obtains the mapping source address S of the group address G according to the address mapping table, and changes ( * , G) join message is converted into (S, G) join message, BRAS has user management function, save (S, G) message together with user's MAC address or IP address, BRAS device has the function of multicast router, according to PIM -The SM protocol initiates (S, G) join request messages to the upstream router. In the network, the router sends (S, G) join request messages to the upstream router in turn according to the PIM...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for realizing the SSM-mode multicast. The method includes that a user launches a participation request message with a multicast group address to a broadband access server; the broadband access server acquires a multicast source address according to the mapping relationship between the pre-saved multicast group address and a multicast source address, the participation request message with the multicast group address is converted into the participation request message with the multicast group address and the multicast source address, and the participation request message is delivered to a multicast router; after the multicast router receives the participation request message, according to which, the data message from the multicast source server is sent down to the broadband access server which sends the data message down to the user. Meanwhile, the invention also provides equipment and a system for realizing the SSM-mode multicast, and using the technical proposal in the invention, the SSM-mode multicast of the authentication information based on users or locations is realized.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method, device and system for realizing SSM mode multicast. Background technique [0002] Multicast refers to the transmission of data packets from one sender to a group of receivers instead of one receiver in the network. There are three main entities in multicast, as shown in Figure 1: 1. Multicast source, to the network 2. The multicast router forwards the multicast message and join message; 3. The receiver sends a join message with the multicast group address to the multicast router and receives the multicast message. On the receiver side, that is, the user side, the protocol used is the IGMP / MLD protocol, which defines the control mechanism for the user to join the specified host group. The user reports the group membership to the shared network where it is located. All enabled hosts in the same network segment The router with the ICMP / MLD function elects a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L12/18H04H1/00
Inventor 顾勤丰
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products