Enhancements to 802.3 media access control and associated signal

Details Enhancements to 802.3 media access control and associated signal Enhancements to 802.3 media access control and associated signal

1995-06-07

1997-09-30

Blum, Russell W.

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

370236, 370276, 370446, 370465, H04L 514, H04L 12413

Patent

active

056732546

ABSTRACT:
A flow control enabled Ethernet switch that applies backpressure to input ports that attempt to transmit a data packet to a busy destination port. The backpressure is a phantom packet that activates to abort transmission of the data packet. When the destination port is available, the phantom packets control retransmission, permitting standard retransmission of the data packet. The switch may include prioritization mechanisms to use when awarding priority to a port having backpressure applied.

REFERENCES:
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patent: 5311114 (1994-05-01), Sambamurthy et al.
patent: 5355375 (1994-10-01), Christensen
patent: 5436617 (1995-07-01), Adams et al.
patent: 5517520 (1996-05-01), Chi
patent: 5535211 (1996-07-01), Yano
Melatti, L., "Fast Ethernet: 100 Mbit/s Made Easy," Data Communications, vol. 23, No. 16, Nov. 16, Nov. 1, 1994, pp. 111/112, 114, 116.

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