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Title: System, apparatus and methods to implement high-speed network analyzers

Abstract

Systems, apparatus and methods for the implementation of high-speed network analyzers are provided. A set of high-level specifications is used to define the behavior of the network analyzer emitted by a compiler. An optimized inline workflow to process regular expressions is presented without sacrificing the semantic capabilities of the processing engine. An optimized packet dispatcher implements a subset of the functions implemented by the network analyzer, providing a fast and slow path workflow used to accelerate specific processing units. Such dispatcher facility can also be used as a cache of policies, wherein if a policy is found, then packet manipulations associated with the policy can be quickly performed. An optimized method of generating DFA specifications for network signatures is also presented. The method accepts several optimization criteria, such as min-max allocations or optimal allocations based on the probability of occurrence of each signature input bit.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Reservoir Labs, Inc. New York, NY(United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1225520
Patent Number(s):
9,185,020
Application Number:
12/770,649
Assignee:
Reservoir Labs, Inc
DOE Contract Number:  
FG02-08ER85046
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Apr 29
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Ezick, James, Lethin, Richard, Ros-Giralt, Jordi, Szilagyi, Peter, and Wohlford, David E. System, apparatus and methods to implement high-speed network analyzers. United States: N. p., 2015. Web.
Ezick, James, Lethin, Richard, Ros-Giralt, Jordi, Szilagyi, Peter, & Wohlford, David E. System, apparatus and methods to implement high-speed network analyzers. United States.
Ezick, James, Lethin, Richard, Ros-Giralt, Jordi, Szilagyi, Peter, and Wohlford, David E. Tue . "System, apparatus and methods to implement high-speed network analyzers". United States. https://www.osti.gov/servlets/purl/1225520.
@article{osti_1225520,
title = {System, apparatus and methods to implement high-speed network analyzers},
author = {Ezick, James and Lethin, Richard and Ros-Giralt, Jordi and Szilagyi, Peter and Wohlford, David E},
abstractNote = {Systems, apparatus and methods for the implementation of high-speed network analyzers are provided. A set of high-level specifications is used to define the behavior of the network analyzer emitted by a compiler. An optimized inline workflow to process regular expressions is presented without sacrificing the semantic capabilities of the processing engine. An optimized packet dispatcher implements a subset of the functions implemented by the network analyzer, providing a fast and slow path workflow used to accelerate specific processing units. Such dispatcher facility can also be used as a cache of policies, wherein if a policy is found, then packet manipulations associated with the policy can be quickly performed. An optimized method of generating DFA specifications for network signatures is also presented. The method accepts several optimization criteria, such as min-max allocations or optimal allocations based on the probability of occurrence of each signature input bit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {11}
}

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