System and method for avoiding neighbor cache pollution

US8284783B1 · kind B1 · utility

Assignee

• NVIDIA Corporation · US

Inventors

• Thomas A. Maufer · Cupertino, US
• Ayaz Abdulla · Sunnyvale, US
• Norman K. Chen · Sunnyvale, US
• Ashutosh K. Jha · Sunnyvale, US
• Hemamalini Manickavasagam · San Jose, US
• Sameer Nanda · San Jose, US
• Anand Rajagopalan · Saratoga, US

Key dates

• Filing date: Dec 9, 2005
• Grant date: Oct 9, 2012
• Expiry date: Jun 27, 2027

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L45/245
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A method of avoiding cache corruption when establishing a network connection includes the steps of transmitting a request to a computing device, where the request includes a masquerade layer-3 address, and receiving a reply transmitted by the computing device in response to the request, where the reply includes a MAC address associated with the computing device. Since the masquerade layer-3 address is unique relative to the computer network, computing devices within the network do no overwrite existing layer-3-to-MAC relationships in their respective caches with the layer-3-to-MAC relationship reflected in the request. Thus, the method enables a network connection to be initiated between two computing devices in the same computer network while avoiding neighbor cache pollution on other computing devices in that network.