Distributed local-area-network monitoring system
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United States of America Patent
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-
Mar 28, 1989
Grant Date -
N/A
app pub date -
Feb 24, 1987
filing date -
Feb 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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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