Method of realizing static table item and address binding

Abstract

A bit digit for denoting whether the table is a dynamic table or static table is further added to each address table in a dynamic address table. In the method, operations are as following: before modifying table in the dynamic address table, determining whether the table to be modified is a static table or not based on the said denoted bit digit; if it is a static table, the modifying operation is failed; otherwise, the table is modified. The said modifying operations include refreshing table, aging table and deleting table. Advantages of the invention are: consummating system management, simple and reliable performances.

Description

technical field [0001] The invention relates to the address table management technology in the data link layer and the network layer in the data communication equipment, in particular to a method for realizing binding of static table items and addresses. Background technique [0002] The address table is a necessary functional module in the data link layer and network layer data communication equipment, such as Ethernet, IP routing, flow classification and other forwarding engines, used to store and manage the address and policy information of data forwarding. The dynamic address table includes dynamic entries and static entries. Among them, dynamic entries can be added or deleted at any time as needed, while static entries are often not expected to be changed once they are set. If they are changed, system functions and management may be affected. For example, when a hacker maliciously attacks the system, if the dynamic address table is full, the static entries in the dynam...

AI Technical Summary

Problems solved by technology

Among them, dynamic entries can be added or deleted at any time as needed, while static entries are often not expected to be changed once they are set. If they are changed, system functions and their management may be affected

For example, when a hacker maliciously attacks the system, if the dynamic address table is full, the static entries in the dynamic address table are likely to be covered by some useless addresses; Some entries are aged out, but the deleted entries may include static entries

If the above problems occur, the system functions will be seriously affected. Therefore, this method of managing the system is not perfect. Once the static table items are changed, the system may experience serious errors.

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