Network method, network apparatus, and non-transient computer readable storage medium

Abstract

The invention relates to a network method, network apparatus, and a non-transient computer readable storage medium. In general, techniques are described for organizing execution of distributed operating systems for network devices. The network apparatus includes a first hardware node and a second hardware node, wherein the first hardware node can execute a first entity of the distributed operatingsystem and maintain a first data structure storing a plurality of objects defining a part of status information; a second hardware node can execute a second entity of the distributed operating systemand maintain a second data sturcture of a synchornous version of the objects. The first hardware node can further receive updated status information, so that by updating the first data structure, theupdated status information is included, and the updated first data structure and second data structure are synchronized. The second hardware node can synchronize the second data structure with the updated first data structure.

Description

[0001] This application claims the benefit of U.S. Provisional Application No. 62 / 437,369, filed December 21, 2016, and U.S. Provisional Application No. 62 / 479,804, filed March 31, 2017, the entire contents of which are adopted Incorporated by reference. technical field [0002] The present disclosure relates to network devices, and more particularly, to operating systems for network devices. Background technique [0003] An operating system for a network device such as a router is used to provide an execution environment in which various applications such as network protocols, maintenance interfaces, virtualization applications, and the like can execute. One function of a router's operating system is to establish a means by which state information can be propagated to the various components (or, in other words, the router's compute nodes) to allow the router to properly route network traffic within the network. [0004] For example, a router may maintain state information ...

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Problems solved by technology

[0009] However, multi-chassis routers can result in a large number of different components (e.g., routing engines), each executing a different instance of the operating system that needs to properly maintain state information and communicate changes to the state information to downstream consumers.

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