Specifications

The Patent Office Journal 17/12/2010
4601
(12) PATENT APPLICATION PUBLICATION (21) Application No.4007/CHENP/2010 A
(19) INDIA
(22) Date of filing of Application :29/06/2010 (43) Publication Date : 17/12/2010
(54) Title of the invention : FACILITATING DEFENSE AGAINST MAC TABLE OVERFLOW ATTACKS
(51) International classification :H04L 29/06
(31) Priority Document No :12/008,535
(32) Priority Date :11/01/2008
(33) Name of priority country :U.S.A.
(86) International Application No
Filing Date
:PCT/IB2009/051972
:08/01/2009
(87) International Publication No
:WO 2009/093224
A2
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
(62) Divisional to Application Number
Filing Date
:NA
:NA
(71)Name of Applicant :
1)ALCATEL LUCENT
Address of Applicant :54, RUE LA BOETIE, 75008 PARIS
France
(72)Name of Inventor :
1)YONG SUN
2)VINOD KUMAR CHOYI
(57) Abstract :
A method for defending against MAC table overflow attacks comprises a plurality of operations. An operation is performed for
determining whether each one of a plurality of MAC addresses within a MAC table has one-way traffic or two-way traffic
corresponding thereto. Thereafter, operations are performed for designating each MAC address having two-way traffic corresponding
thereto as a first category of MAC address and for designating each MAC address having one-way traffic corresponding thereto as a
second category of MAC address. In response to the number of the MAC addresses designated as the second category of MAC
address exceeding a prescribed threshold value, an operation is performed for causing a timeout value of at least a portion of the MAC
addresses designated as the second category of MAC address to be less than a timeout value of the MAC addresses designated as the
first category of MAC address.
No. of Pages : 24 No. of Claims : 10