Method for distributing transmission path information and routing bridges

A first routing bridge, where the first routing bridge serves as an appointed forwarding routing bridge of a host on a local link and stores a media access control (MAC) address of a host on the local link, the first routing bridge comprises a processor and a non-transitory storage medium having instructions stored thereon, wherein the instructions, when executed by the processor of the first routing bridge, cause the first routing bridge to carry out the steps of:

• acquiring first information sent by an appointed routing bridge of the local link, wherein the appointed routing bridge appoints a routing bridge of the local link as an appointed forwarding routing bridge of the local link, and wherein the first information indicates that a second routing bridge of the local link substitutes the first routing bridge to serve as an appointed forwarding routing bridge of the host of the local link, and the first information comprising identification information of the second routing bridge;
• after acquiring the first information, distributing transmission path information of the host on the local link to a remote routing bridge of a non-local link, the transmission path information comprising the MAC address of the host on the local link and the identification information of the second routing bridge,
• wherein the remote routing bridge receives the transmission path information sent by the first routing bridge, and wherein the remote routing bridge communicates with the host via the second routing bridge according to the received transmission path information.

A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to carry out the steps of:

• acquiring first information sent by an appointed routing bridge of a local link, wherein the appointed routing bridge appoints a routing bridge of the local link as an appointed forwarding routing bridge of the local link, and wherein where the first information indicates that a second routing bridge of the local link substitutes a first routing bridge to serve as an appointed forwarding routing bridge of the local link, and the first information comprising identification information of the second routing bridge;
• and
• after acquiring the first information, distributing transmission path information of a host on the local link to a remote routing bridge of a non-local link, the transmission path information comprising a media access control (MAC) address of the host on the local link and the identification information of the second routing bridge, where the host on the local link communicates with the remote routing bridge of the non-local link through the appointed forwarding routing bridge of the local link,
• wherein the remote routing bridge receives the transmission path information and wherein the remote routing bridge communicates with the host via the second routing bridge according to the received transmission path information.