A method for distributing transmission path information, including: distributing, by a first routing bridge which stores a MAC address of a host on a local link, transmission path information of the host on the local link to a remote routing bridge of a non-local link, the transmission path information including the MAC address of the host on the local link and identification information of a second routing bridge, so that the remote routing bridge learns the transmission path information from the first routing bridge. The present application further provides corresponding routing bridges. The present application may enable the remote routing bridge to timely learn the transmission path information of the host under the condition that a data packet sent by the host is not received, so as to send data to the host according to a new transmission path.