Link configuration method and controller

A controller, comprising:

• a processor;
• a memory, configured to store program instructions;
• and which, when executed by the processor, cause the controller to:
• obtain a first link profile corresponding to a first network device of a first site and a second link profile corresponding to a second network device of a second site from a profile library, wherein the profile library comprises a plurality of link profiles, wherein each of the plurality of link profiles is a profile comprises information corresponding to at least one link and the information comprises a link type, a link name, and a wide area network side physical port number of a gateway;
• obtain an address pool;
• generate a first link configuration parameter corresponding to the first network device and a second link configuration parameter corresponding to the second network device based on the address pool, the first link profile, the second link profile and a link configuration rule, the link configuration rule comprising link name matching;
• send the first link configuration parameter to the first network device;
• and
• send the second link configuration parameter to the second network device,
• wherein, when the link configuration rule comprises the link name matching, the generate a first link configuration parameter corresponding to the first network device and a second link configuration parameter corresponding to the second network device based on the address pool, the first link profile, the second link profile and a link configuration rule, comprises:
• determine whether there are two links having a same link name in the first link profile and the second link profile, and
• configure a first link in the first link profile and a second link in the second link profile as a logical link.

A configuration method, comprising:

• receiving, by a first network device of a first site, a first link configuration parameter from a controller;
• wherein the first link configuration parameter is generated based on an address pool, a first link profile, a second link profile and a link configuration rule, the link configuration rule comprising link name matching;
• wherein the first link profile corresponding to the first network device, the second link profile corresponding to a second network device of a second site;
• wherein the first link profile and the second link profile from a profile library, wherein the profile library comprises a plurality of link profiles, wherein each of the plurality of link profiles is a profile comprises information corresponding to at least one link and the information comprises a link type, a link name, and a wide area network side physical port number of a gateway;
• establishing a tunnel between the first network device and the second network device, wherein when there are two links having a same link name in the first link profile and the second link profile, a first link and a second link are configured as a logical link.

A first network device of a first site, comprising:

• a processor;
• a memory, configured to store a program instruction;
• and which, when executed by the processor, cause the first network device to:
• receive a first link configuration parameter from a controller, wherein the first link configuration parameter is generated based on an address pool, a first link profile, a second link profile and a link configuration rule, the link configuration rule comprising link name matching, wherein the first link profile corresponding to the first network device, the second link profile corresponding to a second network device of a second site from a profile library, wherein the profile library comprises a plurality of link profiles, wherein each of the plurality of link profiles is a profile comprises information corresponding to at least one link and the information comprises a link type, a link name, and a wide area network side physical port number of a gateway;
• and
• establish a tunnel between the first network device and the second network device, wherein when there are two links having a same link name in the first link profile and the second link profile, a first link and a second link are configured as a logical link.