Virtual node scheduling method and system for VLAN (Virtual Local region Network) interconnection of network simulation platform

Abstract

The invention discloses a virtual node scheduling method and system for VLAN (Virtual Local region Network) interconnection of a network simulation platform. The method comprises the following steps: firstly, counting the sum of resources applied by a virtual node requested to be started, and if a single physical host capable of accommodating all virtual nodes exists, scheduling to the physical host; otherwise, selecting a small topological graph scheduling method or a large topological graph scheduling method for the total number of the virtual nodes; in the small topological graph scheduling method, a scheduling result with minimum VLANs is obtained through a conditional traversal calculation method, and in the large topological graph scheduling method, a packet scheduling method with a key node as a center is adopted, so that the newly added VLANs are minimum as much as possible during packet scheduling. A plurality of topological graphs which are started at the same time can be combined and processed, so that the occupied VLAN is minimum. According to the method, the problem of reasonable utilization of VLAN resources of a multi-host network simulation platform is solved, the distribution of the whole topological graph on the physical hosts is more compact, and the calculation process is simple and visual.

Description

technical field [0001] The invention relates to a virtual node scheduling method and system based on VLAN interconnection of a multi-host network simulation platform, belonging to the field of network technology. Background technique [0002] Network emulation is a technology that simulates complex networks in reality through virtualization or network isolation. Network simulation platforms generally use virtual machines or containers to simulate nodes in the network, and use bridges or tunnels to simulate Layer 2 links between nodes. For small-scale network simulation experiments, only one physical host is needed; for large-scale network topology simulation or simultaneous simulation of multiple networks, the CPU, memory, and disk resources of a single physical host may not meet the requirements, so multiple Physical hosts form a cluster. The virtual nodes in a virtual network topology graph may be distributed on different physical hosts. [0003] We consider two virtual...

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Problems solved by technology

Traditional virtual machine node scheduling methods usually only consider CPU, memory, disk, and bandwidt

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