Hitha V Shetty

US Patent:

20120127854, May 24, 2012

Filed:

Nov 23, 2010

Appl. No.:

12/952996

Inventors:

VIKAS KHETAN - Saratoga CA, US
Hitha Shetty - San Jose CA, US

Assignee:

Force 10 Networks, Inc. - San Jose CA

International Classification:

H04L 12/24

US Classification:

370218

Abstract:

A packet network device includes a control module, one or more line cards each one or which includes a plurality of ingress and egress ports, and each of the ingress and egress ports are connected to external network links. The line cards maintain forwarding tables and include functionality that employs information in the forwarding tables to determine how incoming packets of information should be forwarded. The control module includes functionality that operates to learn reachability information about other devices connected to the network that are and to use this reachability information to update forwarding tables maintained on the line cards. The control module also includes an enhance ARP functionality that operates in cooperation with standard ARP functionality and other network protocols included on the control module to diminish the amount of data lost in the event that a link connected to one of the egress ports fails.