Strategy table entry collocation method, device and system

Abstract

The invention provides a strategy table entry collocation method, device and system. The method comprises the steps that according to a preset combining rule, whether a strategy table corresponding to an exchanger has table entries capable of being combined or not is judged; if the strategy table has the table entries capable of being combined, the table entries capable of being combined are combined to generate combined table entries, and the table entries participating in combining are deleted. According to the technical scheme, by combining the table entries capable of being combined in the strategy table, the number of the table entries in the strategy table can be effectively reduced, and the using rate of strategy table resources can be effectively improved. Compared with an existing method using a TCAM mode for expanding the corresponding strategy table volume of the exchanger, the strategy table entry collocation method has the advantage that cost investment can be reduced.

Description

technical field [0001] The invention relates to network technology, in particular to a method, device and system for configuring policy table items. Background technique [0002] With the current management requirements of data centers, enterprise networks, and campus networks and changes in traffic models, more and more networks have shifted from the original north-south construction model to the east-west construction model, that is, from the original access switch→aggregation switch→core The switch network model transitions to the access switch → core switch network model. The network of access switch → core switch is a flat network. In the flat network, the core switch is responsible for a large number of functions that were originally performed by the aggregation switch, and the interconnection bandwidth between the core switches needs to be increased to complete east-west data transmission. [0003] SDN (Software Defined Network) is an independent network architectur...

AI Technical Summary

Problems solved by technology

[0009] When deploying a flat network, the capacity of the policy table of the switch is too small, especially the capacity of the policy table on the core switch is too small, so that when it is deployed in a large-scale network, the relevant security policies and flexible forwarding control are reflected. Serious deficiency

[0010] Existing solutions generally use external expansion of ternary content addressable memory (TCAM) to expand the capacity of the corresponding switch policy table. However, due to the high cost of TCAM and the deployment of a network, Some areas require a large number of tables, and some areas have relatively free table capacity. Therefore, simply adding TCAM will greatly increase the hardware cost, and make these hardware resources unable to be fully utilized.

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