Synthetic method of vlan configuration based on dsl

Abstract

The invention discloses a DSL-based VLAN configuration synthesis method. The invention aims to solve the problems that the current network management personnel manually allocate and configure VLANs, and the manual configuration is prone to errors and the link utilization rate is low. By defining DSL, the invention enables users to describe topology information and self-defined policy information by using DSL, realizes VLAN division and corresponding configuration generation satisfying topology structure and user strategy, reduces possible errors in manual configuration and improves link utilization. The main steps are: 1) obtaining network topology information; 2) obtaining user policies; 3) VLAN division; 4) generating configuration files. A DSL-based VLAN configuration synthesis method proposed by the invention can automatically generate configuration files according to user input strategies, reduce possible errors in manual configuration, balance broadcast traffic costs between VLANs, and improve link utilization.

Description

technical field [0001] The invention belongs to the field of computer networks, and relates to a DSL-based VLAN configuration synthesis method. Background technique [0002] VLAN (Virtual Local Area Network, virtual local area network), as a protocol working at Layer 2 and Layer 3, plays an important role in both the campus network and the campus network. Campus network or campus network administrators usually group users according to their identities. Users in the same user group belong to a broadcast domain. In theory, a VLAN can be created for the entire user group, but if the number of users in the user group is too large, the broadcast domain of the VLAN will be too large, and a large number of broadcast packets will occupy bandwidth and reduce network performance. The more VLANs a user group is divided into, the smaller the average broadcast domain. However, due to device hardware limitations, the total number of VLANs has an upper limit, so a trade-off needs to be ...

AI Technical Summary

Problems solved by technology

However, in a large network environment with overlapping VLANs, the overhead of running an STP instance is very high, especially in the case of a large number of VLANs, it is not a good choice to use STP

Existing methods at present propose the method of dividing VLAN on the basis of not using STP, but this method does not consider the different influence of link transmission rate on VLAN, and almost does not support the strategy that administrator makes (Sun X, Sung YE , Krothapalli SD, Rao SG. Asystematic approach for evolving VLAN designs, In Proc. of the 29th conference of the IEEE Computer and Communications Societies (INFOCOM): San Diego, CA, USA, 2010; 1–9.)

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