Hi, " How does the "Linux TCP/IP stack" respond for 6000(the number is anything greater than 200 not necessarily 6000) duplicate acks", with the last highes acknowledged packet being 10. The Iris is responding positively by sending the number of packets in its current window and retransmitting the same number of packets after Retransmit time outs.... regards Pradeep.A - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html