| US 7,558,195 B1 | ||
| System and method for providing network route redundancy across layer 2 devices | ||
| Andrew Tai-Chin Kuo, Newark, Calif. (US); Ivy Pei-Shan Hsu, Pleasanton, Calif. (US); Jordi Moncada-Elias, Milpitas, Calif. (US); Rajkumar Jalan, Saratoga, Calif. (US); and Gurudeep Kamat, Mountain View, Calif. (US) | ||
| Assigned to Foundry Networks, Inc., Santa Clara, Calif. (US) | ||
| Filed on Apr. 02, 2007, as Appl. No. 11/695,458. | ||
| Application 11/695458 is a continuation of application No. 10/124449, filed on Apr. 16, 2002, granted, now 7,209,435. | ||
| Int. Cl. H04J 1/16 (2006.01); H04L 12/56 (2006.01) | ||
| U.S. Cl. 370—219 [370/252; 370/242; 370/386] | 19 Claims |
| 1. A switch for use in a system of switches, the system of switches acting as a virtual switch, the switch comprising:
a memory; and
a plurality of ports, each for communicatively coupling the switch to a Layer 2 network,
wherein the switch is configured to act in concert with one or more other switches in the system of switches to provide route
redundancy for the Layer 2 network, and
wherein the switch is configured to communicate its status to the one or more other switches by transmitting, via at least
one of the plurality of ports, redundancy control packets for flooding throughout the Layer 2 network.
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