| 摘要 |
The disclosure discloses a method for realizing the reachability of a host route in an access ring of a Packet Transport Network (PTN), including: the layer-three interface of a convergence node is provided with a function of linkage between an Address Resolution Protocol (ARP) module and a static route module; the convergence node automatically updates a learned static route entry corresponding to a host address of an access node according to a learned ARP entry about each access node; and, the convergence node reports a current learned static route entry corresponding to the host address of the access node to a core node and other networks according to a dynamic route protocol. The disclosure discloses a system for realizing the reachability of a host route in an access ring of a PTN at the same time. By the method and system, when breaks simultaneously occur on the links between the access nodes of the access ring and the heartbeat wire between convergence nodes, all the access nodes associated with the other convergence node can normally communicate with the core node and other networks, so as to improve the fault resist capability of the access node in the PTN. |
