3 results about "Forwarding equivalence class" patented technology

The invention relates to the technical field of communication, and provides a mode switching method, electronic equipment and a computer readable storage medium, and the method comprises the steps: determining whether a first forwarding equivalence class carries a label mapping identifier or not after a mode switching instruction is received; the mode switching instruction is an instruction for switching the independent mode to the ordered mode or an instruction for switching the ordered mode to the independent mode. And if the first forwarding equivalence class carries the label mapping identifier, the current mode is an independent mode, and the mode switching instruction is an instruction of switching the independent mode into an ordered mode, sending a label withdrawing message to the upstream label distribution device. And if the first forwarding equivalence class carries a label mapping identifier, the current mode is an ordered mode, and the mode switching instruction is an instruction of switching the ordered mode into an independent mode, sending a label mapping message to the upstream label distribution device. The modes can be smoothly switched, large-scale oscillation of the whole network is avoided, and the reliability of the network is improved.

A method of forwarding a data packet includes, in part, receiving the data packet at an ingress interface, reordering entries of the data packet such that a first forwarding equivalence class (FEC), indexed by a first forwarding lookup table, is caused to point to a virtual private network (VPN) identifier associated with a tunnel through which the data packet is to be forwarded. The reordering of the entries causes a second FEC to point to a multitude of common tunnel header entries. The second FEC is indexed by the first FEC and has a lower level than the first FEC. The data packet with the reordered entries is forwarded through the tunnel. The egress tunnel header rewrite table entries are also reordered in accordance with which the data packet is forwarded.

A technique of restoring data in a network device includes, after a restart of an agent in the network device, obtaining, by the agent, a current fingerprint of a FEC (forwarding equivalence class) value stored in a persisted information base. The technique further includes retrieving, by the agent, a FEC identifier from a pre-restart persisted table based on the current fingerprint, the pre-restart persisted table associating multiple fingerprints of FEC values with respective FEC identifiers used by the agent prior to the restart, and updating a dataset of the agent to associate the retrieved FEC identifier with the FEC value.