Link multiplexing mechanism utilizing path oriented forwarding

Details Link multiplexing mechanism utilizing path oriented forwarding Link multiplexing mechanism utilizing path oriented forwarding

2002-07-23

2008-12-16

Vu, Huy D. (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S466000

Reexamination Certificate

active

07466697

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.

REFERENCES:
patent: 6185189 (2001-02-01), Brassier et al.
patent: 6353593 (2002-03-01), Chen et al.
patent: 6512744 (2003-01-01), Hughes et al.
patent: 6658021 (2003-12-01), Bromley et al.
patent: 6904018 (2005-06-01), Lee et al.
patent: 6977932 (2005-12-01), Hauck
patent: 2002/0093954 (2002-07-01), Weil et al.
patent: 2002/0101865 (2002-08-01), Takagi et al.
patent: 2002/0101870 (2002-08-01), Chase et al.
patent: 2002/0109879 (2002-08-01), Wing So
patent: 2002/0110119 (2002-08-01), Fredette et al.
patent: 2002/0181485 (2002-12-01), Cao et al.
patent: 2002/0196808 (2002-12-01), Karri et al.
patent: 2003/0021276 (2003-01-01), Lee
patent: 2003/0189898 (2003-10-01), Frick et al.
patent: 2003/0225906 (2003-12-01), Natarajan et al.
patent: 2004/0174865 (2004-09-01), O'Neill
patent: 2006/0127089 (2006-06-01), Smith
D. Awduche et al., “RSVP-TE: Extensions to RSVP for LSP Tunnels”, Request for Comments 3209, Dec. 2001, pp. 1-61.
E. Rosen et al., “MPLS Label Stack Encoding”, Request for Comments 3032, Jan. 2001, pp. 1-23.
Ping Pan et al., “Fast Reoute Extensions to RSVP-TE for LSP Tunnels”, draft-ietf-mpls-rsvp-lsp-fastreroute-00.txt, Internet Engineering Task Force, Network Working Group, Jul. 2002, pp. 1-32.

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