Routing table vulnerability comparison between two versions and analysis of performance in a scenari


 
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Operating Systems Linux Routing table vulnerability comparison between two versions and analysis of performance in a scenari
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Old 07-27-2010
Routing table vulnerability comparison between two versions and analysis of performance in a scenari

Hi
Routing tables in a typical linux kernel are implemented using hash data structures. So if the hash table is forced to behave more like a linked list(i.e create chaining) the purpose of using hash is defeated and time complexity increases.
I want to try to assess the performance deterioration in scenario when we above is forced by launching a dos on my lan.Any thoughts are welcome.
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AUT101(1)						       ALLIANCE AUT LIBRARY							 AUT101(1)

NAME
aut - Memory allocation, and hash tables management ORIGIN
This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in Paris, France. Web : http://asim.lip6.fr/recherche/alliance/ E-mail : alliance-users@asim.lip6.fr DESCRIPTION
aut is a set of utilities functions and types that may be useful. Types : authelem - Hash table element type. authtable - Hash table type. auth2elem - Hash table element type. auth2table - Hash table type. Functions : autallocblock - memory allocator autallocheap - heap memory allocator autresizeblock - resizes a memory block autfreeblock - releases a memory block autfreeheap - releases an heap memory block. autexit - encapsulates exit function. createauthtable - creates a simple hash table. destroyauthtable - destroys a simple hash table. resetauthtable - resets a simple hash table. addauthelem - adds an element in the hash table. delauthelem - deletes an element in the hash table. searchauthelem - searches an element in the hash table. viewauthelem - displays an hash table element. viewauthtable - displays an hash table. createauth2table - creates an hash table with two keys. destroyauth2table - destroys an hash table with two keys. resetauth2table - resets an hash table with two keys. addauth2elem - adds an element in the hash table. delauth2elem - deletes an element in the hash table. searchauth2elem - searches an element in the hash table. viewauth2elem - displays an hash table element. viewauth2table - displays an hash table with two keys. sortautcompare - default heap sort comparison function. sortautarray - heap sort. libAut101.a : autallocblock, autallocblock, autresizeblock, autfreeblock, autfreeheap, autexit, setauthfunc, getauthsize, getauthkey, getauthindex, checkauthkey, createauthtable, destroyauthtable, resetauthtable, stretchauthtable, addauthelem, delauthelem, searchauthelem, viewauthelem, viewauthtable, setauth2func, getauth2size, getauth2key, getauth2index, checkauth2key, createauth2table, destroyauth2table, resetauth2table, stretchauth2table, addauth2elem, delauth2elem, searchauth2elem, viewauth2elem, viewauth2table, sortautcompare, sortautarray, BUG REPORT
This tool is under development at the ASIM department of the LIP6 laboratory. We need your feedback to improve documentation and tools. ASIM
/LIP6 October 1, 1997 AUT101(1)