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Is bridge keeps a list of each segment ?

A bridge keeps a list for each segment that contains physical addresses in this way he knows destination computer but How a bridge knows whether to forward frames or not?


 A bridge manages a forwarding table. When the bridge receives a frame from the LAN, it examines the destination address (DA) and finds the corresponding entry in its forwarding table. This will tell the bridge what destination port, if any, it should regenerate the frame on. If the destination port is not the same one from which the frame was just read as input, the bridge will transmit a copy of the frame on the destination port. This process is done in parallel with the address learning procedure


Read more: How Does an Ethernet Bridge Handle an Incoming Frame?
http://www.ehow.com/how-does_5257081_ethernet-bridge-handle-incoming-frame.html#ixzz2DxqvUTuw
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