Preserving packet order for data flows when applying traffic...

Details Preserving packet order for data flows when applying traffic... Preserving packet order for data flows when applying traffic...

2007-11-15

2010-11-09

Yao, Kwang B (Department: 2473)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

Reexamination Certificate

active

07830797

ABSTRACT:
Apparatus having corresponding methods and computer programs comprise: an ingress circuit to receive a plurality of data flows, wherein each data flow includes packets of data having a desired order of transmission; an unshaped queue; one or more shaped queues; a forwarding engine to transfer the packets in each data flow from the ingress circuit to the unshaped queue when a shaping flag for the respective data flow is not set, and to transfer the packets in each data flow from the ingress circuit to a corresponding shaped queue when the shaping flag for the respective data flow is set; an egress circuit to transmit the packets; and a scheduler to dequeue the packets from the unshaped queue to the egress circuit, and to dequeue the packets from each shaped queue to the egress circuit only when no packets for the respective data flow remain in the unshaped queue.

REFERENCES:
patent: 7065569 (2006-06-01), Teraslinna
patent: 7330430 (2008-02-01), Lodha
patent: 2005/0018601 (2005-01-01), Kalkunte et al.
patent: 2005/0111359 (2005-05-01), Onoe et al.
IEEE P802.1au/D0.1; Draft Standard for Local and Metropolitan Area Networks—Virtual Bridged Local Area Networks—Amendment 7: Congestion Management; Sponsor LAN MAN Standards Committee of the IEEE Computer Society; Prepared by the Interworking Task Group of IEEE 802.1; Sep. 29, 2006; 43 pages.

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