| 摘要 |
Communication path redundancy protection systems and methods are disclosed. Multiple communication interfaces having a common address support communications on respective communication paths (36, 38) . One of the interfaces or communication paths (36, 38) is selected as an active interface or path for transferring communication traffic, in the event of a fault associated with the active interface or path, another one of the interfaces or paths is selected to become active. The common address allows redundant interfaces to appear as a single interface to other communication equipment, whereas the multiple interfaces provide redundant path protection using a single piece of communication equipment. When embodiments of the invention are implemented in a gateway router (34) of a core communication network (32) , for example, activity switches between redundant access paths (36, 38) have no effect on routing in the core network (32) . |
