The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2008
Filed:
Jul. 23, 2002
Yaron Raz, Cupertino, CA (US);
Uri Avimor, Ramat Hasharon, IL;
Ofir Friedman, Rishon Letzion, IL;
Lior Shabtay, Ramat Gan, IL;
Yaron Raz, Cupertino, CA (US);
Uri Avimor, Ramat Hasharon, IL;
Ofir Friedman, Rishon Letzion, IL;
Lior Shabtay, Ramat Gan, IL;
Atrica Israel Ltd, Herzelia, IL;
Abstract
A subport forwarding and provisioning mechanism whereby a plurality of subports implemented using slower speed processors are used to perform the packet processing for a higher speed packet stream. Outbound packets are assigned a subport based on their MPLS labels. Once assigned, the packets are forwarded to a particular subport. The output of all the subports is aggregated and combined into a single high speed packet stream and transmitted over the link. Inbound packets are received by the high speed PHY and forwarded to one of a plurality of subports. The subport chosen is the one having the same subport index as the one through which the packet was sent out over at the transmitting node. Conventional layer 2 switches can also be used whereby reserved source MAC addresses are assigned to subports. The switch forwards the inbound packets to one of the subports in accordance with the packet's source MAC address. The invention also comprises a mechanism for provisioning protection tunnels and a method for allocating subport bandwidth to subports.