| US 7,519,062 B1 | ||
| Method and apparatus for implementing forwarding decision shortcuts at a network switch | ||
| Ray Kloth, Mountain View, Calif. (US); Thomas J. Edsall, Mountain View, Calif. (US); and Luca Cafiero, Palo Alto, Calif. (US) | ||
| Assigned to Cisco Technology, Inc., San Jose, Calif. (US) | ||
| Filed on Nov. 30, 2004, as Appl. No. 10/999,823. | ||
| Application 10/999823 is a continuation of application No. 09/617581, filed on Jul. 14, 2000, granted, now 6,842,453, filed on Jan. 11, 2005. | ||
| Application 09/617581 is a continuation of application No. 08/951820, filed on Oct. 14, 1997, granted, now 6,147,993, filed on Nov. 14, 2000. | ||
| Int. Cl. H04L 12/28 (2006.01); H04L 12/56 (2006.01) | ||
| U.S. Cl. 370—392 [370/401] | 26 Claims |
| 1. A method, comprising:
forwarding a first packet based on a network layer routing decision rendered by a router for the first packet;
generating a shortcut entry based on a first header of the first packet;
storing the shortcut entry for the first header; and
forwarding, in response to the shortcut entry, and absent a network layer routing decision rendered by a router, subsequent
packets having a subsequent header, the subsequent header having at least one field which matches a field of the first header.
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