Apparatus and method for aggregating and switching traffic...

Details Apparatus and method for aggregating and switching traffic... Apparatus and method for aggregating and switching traffic...

2005-12-06

2011-10-04

Cai, Wayne (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S231000, C370S429000, C370S432000

Reexamination Certificate

active

08031682

ABSTRACT:
An apparatus for aggregating and switching traffic in a broadband subscriber network and methods of processing upstream and downstream traffic are provided. The apparatus includes: an upstream traffic processing unit which stores a plurality of packets received from a plurality of downlinks with respect to each subscriber link, and transmits the packets stored with respect to each subscriber link to uplinks through scheduling; and a downstream traffic processing unit which broadcasts a packet received from the uplinks to the subscriber links via a broadcast bus connected to the respective subscriber links and determines with respect to each subscriber link whether to transmit the packet to subscriber links. It is possible to efficiently aggregate, switch, and broadcast subscriber traffic in a broadband subscriber network in which upstream traffic and downstream traffic are asymmetric.

REFERENCES:
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patent: 2005/0249220 (2005-11-01), Olsen et al.
patent: 09-168016 (1997-06-01), None
patent: 2001-298477 (2001-10-01), None
patent: 2001-0045783 (2001-06-01), None
“Gigabit Ethernet Switches Using a Shared Buffer Architecture,” Michael V. Lau et al, IEEE Communications Magazine, Dec. 2003, pp. 76-84, © 2003 IEEE.
“The iSLIP Scheduling Algorithm for Input-Queued Switches,” Nick McKeown, IEEE/ACM Transactions on Networking, vol. 7, No. 2, Apr. 1999, pp. 188-201, © 1999 IEEE.

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