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.
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[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...
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