Definition

jam

In an Ethernet network, a jam is a signal from one device to all other devices that a collision has occurred. Specifically, the device was trying to send a frame while another device was also trying to put a frame on the line). The jam signal results in additional collisions in any other frames in process of being put on the line and warns non-transmitting devices to wait. Effectively, a jam provides a way to force all devices to restart any bids to get control of the line.

This was last updated in August 2006

Continue Reading About jam

Dig Deeper on Campus area network

SearchUnifiedCommunications
SearchMobileComputing
SearchDataCenter
SearchITChannel
Close