Importance

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Abstract

A monitoring system for a local-area network (10) has a distributed organization, in which a monitor manager (34) on the network receives information from individual monitor units (32 and 40) connected to different buses (12 and 14) of the local-area network (10). Each monitor unit employs a plurality of counters in a packet memory (50) that are dynamically allocated to specific packet characteristics as new packet characteristics appear on the network. A look-up table (56) contains the association between counters and the characteristics with which they are associated, and a look-up engine (54) operates the look-up table (56) in such a manner as to enable it to search for the location of specific counters by employing a binary-search method. In this way, all processing for a given packet can be performed within the minimum packet time.

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First Claim