Method and apparatus avoiding capture effect by adding a slot time to an interpacket gap interval in a station accessing an ethernet network

A method of mediating collisions on media of an Ethernet network, comprising:

• transmitting a first data packet from a network station onto the media;
• transmitting a second data packet by the network station after the first data packet, comprising the steps of:
• (1) setting a delay interval to include a predetermined interpacket gap interval and one slot time interval,
• (2) determining whether a receive carrier is asserted on the media, and
• (3) transmitting the second data packet after the transmission successful of the first data packet and in response to said delay interval if the receive carrier is not asserted on the media;
• sensing a collision on the media;
• setting a collision delay interval to zero if a number of collisions encountered by the network station equals one;
• and
• attempting access of the media in response to the detected collision and in response to the set collision delay interval.

A method of mediating collisions on media of an Ethernet network, comprising:

• sensing a collision on the media caused in response to transmission of a current data packet by a network station;
• setting a collision delay interval in the network station to zero if the network station has successively transmitted a first data packet and said current data packet, and if a number of access attempts for transmitting said current data packet equals one;
• and
• attempting access of the media in response to the detected collision and after the collision delay interval.

A network interface for connection with media of an Ethernet network, comprising:

• a carrier sensor sensing deassertion of a receive carrier on the media;
• a delay time calculator selectively adding a slot time interval to a predetermined interpacket gap interval to obtain a delay time, the calculator adding the slot time interval to the predetermined interpacket gap interval in response to successful transmission of a packet by the network interface;
• and
• a media access device attempting access of the media in response to the sensed deassertion of the media and said delay time.