The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2010
Filed:
Jun. 04, 2003
Prashanth Ishwar, Santa Clara, CA (US);
Apurva Mehta, Cupertino, CA (US);
Juan Sanchez, San Jose, CA (US);
Apoorv Saxena, Santa Clara, CA (US);
Shiva Shenoy, San Jose, CA (US);
Prashanth Ishwar, Santa Clara, CA (US);
Apurva Mehta, Cupertino, CA (US);
Juan Sanchez, San Jose, CA (US);
Apoorv Saxena, Santa Clara, CA (US);
Shiva Shenoy, San Jose, CA (US);
Alcatel-Lucent USA Inc., Murray Hill, NJ (US);
Abstract
An efficient mechanism for wire-tapping network traffic is disclosed. In one embodiment of the invention, a primary forwarding lookup process and a secondary forwarding lookup process are performed in parallel and independently of each other. The primary forwarding lookup process determines the output interface to which the packet is to be routed regardless of whether the packet is to be intercepted. The secondary forwarding lookup process determines whether the packet is to be intercepted and also determines the output interface to which a copy of the packet is to be routed. Because the lookup processes are performed independently and in parallel, normal packet forwarding can be performed at line rate or near line rate while the packets are intercepted.