From a packet stream, a first packet, one or more intervening packets, and a second packet are received in the preceding order. The first packet is inserted into a buffer. The one or more intervening packets are inserted into the buffer after the first packet. At least a portion of the first packet is compared to at least a portion of the second packet to produce a comparison result. The second packet is inserted into the buffer after the one or more intervening packets if the comparison result indicates that the second packet is not a duplicate of the first packet.