Virtual network migration method and related equipment

Abstract

Embodiments of the invention disclose a virtual network migration method and related equipment. The method comprises: a software-defined networking (SDN) controller monitors the running state of a physical network; when the SDN controller detects a change of the capacity of the physical network and a first virtual network satisfies preset migration conditions, the SDN controller modifies the mapping relationship between the first virtual network and the physical network. The method facilitates reducing the influence to network service stability caused by physical network capacity changes.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a virtual network migration method and related equipment. Background technique [0002] In a common physical network, packet routing is closely coupled with specific physical forwarding devices, such as physical routers or physical switches, which perform specific data packet forwarding functions. [0003] At present, when the capacity of the physical network changes, for example, when a physical router in the physical network fails (i.e. shrinks in capacity) or a new physical router is added in the physical network (i.e. expands capacity), it will cause the physical routers in the domain to recalculate routes, Re-propagating routes causes routing convergence problems. Sometimes a physical router failure can affect every other physical router in the domain. Equipment failures at important locations lead to BGP routing convergence issues, and may even lead to routing convergenc...

AI Technical Summary

Problems solved by technology

Sometimes a physical router failure can affect every other physical router in the domain

However, equipment failures in important locations lead to the problem of BGP routing convergence, and may even lead to routing convergence of the global Internet, which will affect the stability and reliability of the network, thereby affecting the stability of network services.

Images