PACKET FORWARDING METHOD, CONTROLLER, FORWARDING DEVICE, AND NETWORK SYSTEM

摘要

A network system includes one controller and a plurality of forwarding devices, where the forwarding devices forms a plurality of network topologies; the controller is configured to: allocate, according to a different attribute requirement of a virtual link on a basic link in the network topology, a link global label to the basic link based on the attribute requirement, and send a link binding relationship between the link global label and to the forwarding devices, where global labels allocated to each virtual link are different; and the forwarding devices is configured to receive the link binding relationship, and generate a label forwarding entry including a mapping relationship between the link global label and virtual link forwarding information, where the virtual link forwarding information includes the basic link and specified attribute processing that are corresponding to the global label.

主权项

1. A network system, comprising:
at least one controller; and a plurality of forwarding devices, wherein the plurality of forwarding devices forms a plurality of network topologies; the at least one controller is configured to: allocate, according to a different attribute requirement of a virtual link on a basic link in a network topology, a link global label to the basic link in the network topology based on the attribute requirement; and send a link binding relationship between the link global label and to the plurality of forwarding devices, wherein link global labels allocated to different virtual link are different; and the plurality of forwarding devices is configured to receive the link binding relationship, and generate, according to the link binding relationship, a label forwarding entry comprising a mapping relationship between the link global label and virtual link forwarding information, wherein the virtual link forwarding information comprises the basic link and specified attribute processing that are corresponding to the link global label.