| US 7,349,394 B2 | ||
| Filtering and forwarding frames at an optical line terminal | ||
| Dolors Sala, Atlanta, Ga. (US); John O. Limb, Atlanta, Ga. (US); and Ajay Chandra V. Gummalla, Atlanta, Ga. (US) | ||
| Assigned to Broadcom Corporation, Irvine, Calif. (US) | ||
| Filed on Jan. 29, 2003, as Appl. No. 10/353,054. | ||
| Application 10/353054 is a continuation of application No. 10/361181, filed on Dec. 11, 2002. | ||
| Claims priority of provisional application 60/393096, filed on Jul. 03, 2002. | ||
| Claims priority of provisional application 60/367317, filed on Mar. 26, 2002. | ||
| Claims priority of provisional application 60/339442, filed on Dec. 14, 2001. | ||
| Prior Publication US 2003/0152389 A1, Aug. 14, 2003 | ||
| Int. Cl. H04L 12/56 (2006.01) | ||
| U.S. Cl. 370—392 [370/475] | 33 Claims |
| 1. A method for filtering and forwarding information in an optical network, comprising the steps of:
accessing a frame carrying client information from an incoming port in communications with one or more optical elements of
the optical network;
detecting a presence or absence of an optics control tag integrated with said frame;
determining a distribution mode for said frame;
passing said frame with said optics control tag to one or more destination ports for communicating with one or more corresponding
destination addresses for said frame, wherein said passing step includes passing said frame with said optics control tag to
said incoming port in response to determining said distribution mode being designated for a shared service; and
forwarding said frame with said optics control tag from said one or more destination ports to said one or more corresponding
destination addresses, whereby said frame with said optics control tag is reflected-back from said incoming port in response
to said determining a shared service.
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