SEA failover mechanism with minimized packet losses

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9426022
APP PUB NO 20140140201A1
SERIAL NO

14105398

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Abstract

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Provided are techniques for active SEA learning about a client LPAR MAC addresses via address resolution protocol (ARP) packets received on a virtual interface (of the active SEA). Any new client MAC addresses learned on the active SEA are sent to the inactive SEA via a control channel. When SEA failover happens, as the previously inactive SEA is about to become active, it will first send out RARP (reverse ARP) packets with the client MAC addresses as the source MAC addresses respectively. This effectively informs the switch connected to the previously inactive SEA that these client MAC addresses are to be routed through this switch port; the client MAC addresses saved on the switch connected to the previously active SEA are cleared as a result.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baratakke, Kavitha Vittal Murthy Round Rock, US 33 497
Chokshi, Shaival Jagdishbhai Round Rock, US 5 25
Mansur, Vishal Ramachandra Hubli, IN 7 27
Qin, Xiaohan Austin, US 14 65

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