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:
Jul. 09, 2013
Filed:
Jul. 12, 2010
Albert Vinson Smith, Jr., Richardson, TX (US);
Xinxin Sun, Allen, TX (US);
Nhung Thuy Tran, Lewisville, TX (US);
Nasir Iqbal Amanullah, Garland, TX (US);
Albert Vinson Smith, Jr., Richardson, TX (US);
Xinxin Sun, Allen, TX (US);
Nhung Thuy Tran, Lewisville, TX (US);
Nasir Iqbal Amanullah, Garland, TX (US);
Fujitsu Limited, Kawasaki-shi, JP;
Abstract
A method may include updating a routing table on a first network element based on a shortest path first calculation in response to a network change event. For each deletion from the routing table, a message may be broadcasted to a second network element adjacent to the first network element indicative of such deletion, the message including a target identifier (TID) associated with such deleted entry, wherein the second network element is configured to invalidate its associated TID address resolution protocol (TARP) cache in response to receiving the message. For each deletion from the routing table, a local TARP cache of the first network element may be searched to determine if an entry exists in the local TARP cache mapping the TID associated with such entry to a NASP associated with such entry. The local TARP cache may be invalidated in response to determining that the entry exists.