Method and apparatus for avoiding packet loss on a CSMA/CD-type

Details Method and apparatus for avoiding packet loss on a CSMA/CD-type Method and apparatus for avoiding packet loss on a CSMA/CD-type

1994-10-26

1996-10-22

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 852, 370 853, 370 941, H04Q 1104

Patent

active

055684769

ABSTRACT:
An Ethernet network or other CSMA/CD network includes a hub that is modified to generate a jamming signal on a communication line when a packet received over that line is directed to an unavailable destination. The destination may be unavailable due to full transmit buffers, full receive buffers, or congestion in other parts of the hub architecture. Jamming is detected by the source node as a collision and causes retransmission of the packet from the source node. The decision to jam may include a determination of the packet's priority which may be determined based on the packet's destination or source address.

REFERENCES:
patent: 4723311 (1988-02-01), Moustakas et al.
patent: 4727537 (1988-02-01), Nichols
patent: 5430762 (1995-07-01), Vijeh et al.
patent: 5434861 (1995-07-01), Pritty et al.
patent: 5446726 (1995-08-01), Rostoker et al.

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