Abstract: One embodiment of the present invention provides a computing system. The computing system includes a processor, a memory, a discovery mechanism, a switch management mechanism, and a configuration management mechanism. The discovery mechanism discovers a remote switch. The switch management mechanism registers the remote switch and transmits a switch image to the remote switch, thereby allowing the remote switch to install the image. The configuration management mechanism configures the remote switch, thereby allowing the remote switch to be controlled by the computing system.

Abstract: A network component for supporting packet forwarding in a United Router Farm (URF), the network component comprising a processor configured to receive a packet, encapsulate the packet using a URF header comprising a URF Layer Two (L2) header that indicates Media Access Control (MAC) addresses of current and next hops, an outer label that indicates a tunnel to a destination node in the URF, and an inner label that indicates an egress port on the destination node, and send the packet to a next hop in the URF after encapsulating the packet.

Abstract: One embodiment of the present invention provides a computing system. The computing system includes a processor, a memory, a logical switch management mechanism, and a layer-2 path management mechanism. The logical switch management mechanism operates the computing system in conjunction with a plurality of remote switches as a single logical switch. The layer-2 path management mechanism includes a path calculation mechanism and a layer-2 forwarding table. The path calculation mechanism calculates layer-2 shortest paths among the computing system and the remote switches. The layer-2 forwarding table is for a first switch in the plurality of remote switches and created based on one or more of the shortest paths, wherein a respective entry in the forwarding table corresponds to a layer-2 network address. The layer-2 path management mechanism suppresses advertisement of the shortest paths outside of the logical switch, thereby hiding internal paths of the logical switch.

Abstract: One embodiment of the present invention provides a computing system. The computing system includes a processor, a memory, a discovery mechanism, a switch management mechanism, and a configuration management mechanism. The discovery mechanism discovers a remote switch. The switch management mechanism registers the remote switch and transmits a switch image to the remote switch, thereby allowing the remote switch to install the image. The configuration management mechanism configures the remote switch, thereby allowing the remote switch to be controlled by the computing system.

Abstract: A method for fast converging an end-to-end service and a Provider Edge (PE) includes: setting routing information of at least two tunnels in a double-ascription PE of a remote Customer Edge (CE), wherein, the two tunnels are from the double-ascription PE of the remote CE to the PE connected with the remote CE; detecting tunnel states to obtain state information of the tunnels; the double-ascription PE obtaining available routing information and routing information of the at least two tunnels, and forwarding the service according to the available routing information. The double-ascription PE of the remote CE can directly forward the service according to the pre-configured routing information of other tunnels when the current tunnel is unavailable, such as a terminal node of the current tunnel is abnormal, thereby avoids the procedure of re-selecting the route, and increases the end-to-end service convergence speed and improves the service reliability.

Abstract: A method for fast converging an end-to-end service and a Provider Edge (PE) includes: setting routing information of at least two tunnels in a double-ascription PE of a remote Customer Edge (CE), wherein, the two tunnels are from the double-ascription PE of the remote CE to the PE connected with the remote CE; detecting tunnel states to obtain state information of the tunnels; the double-ascription PE obtaining available routing information and routing information of the at least two tunnels, and forwarding the service according to the available routing information. The double-ascription PE of the remote CE can directly forward the service according to the pre-configured routing information of other tunnels when the current tunnel is unavailable, such as a terminal node of the current tunnel is abnormal, thereby avoids the procedure of re-selecting the route, and increases the end-to-end service convergence speed and improves the service reliability.