200-301: Cisco Certified Network AssociateDemo

A switch egress port sends frames serially, one at a time. When another frame arrives while a prior frame is still being transmitted, the switch buffers the new frame in the port’s output queue and sends it after the current frame completes transmission. Ethernet switching does not normally replace the in-flight frame, request retransmission at the switch for this condition, or transmit two frames at once on the same port.