Nhung H Tran

US Patent:

20120011278, Jan 12, 2012

Filed:

Jul 12, 2010

Appl. No.:

12/834112

Inventors:

Xinxin Sun - Allen TX, US
Nhung Thuy Tran - Lewisville TX, US

International Classification:

G06F 15/173

US Classification:

709242

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.