3 Products Tips From Someone With Experience

Analysis of three kinds of packet loss in wireless network environment

The TCP congestion control mechanism Cisco 1941-SEC Cisco 1941-SEC is the only cause of congestion for data loss, due tothe characteristics of wireless channel, the wireless network environment of large amounts of data due to switching, channel fading, interference and discarded, in this case if the TCPcongestion control, will reduce the data transmission rate is not necessary, cause bandwidth utilization rate is not high, the system delay increases, throughput decreases. 1 random packet loss (Random Loss) The traditional TCP congestion control mechanism is designed for wired networks. Almost negligible caused by bit errors and link error data loss. But in a wireless network, data loss is caused by fading. The IS-95 service based on CDMA data, 1% ~ 2% is the random packet loss. The 2 burst loss (Burst Loss) Burst loss in a very short time, result in the loss of many consecutive data. It is caused by thesignal fading. Wireless LAN as an example, on a mobile host, all traffic it (inflow and outflow) is through which is connected with the base station route. When a mobile host from coverage of a base station is removed, it needs another base in the exercise of its information to register. After all communication is accomplished through the new base station. However, when the switch, a series of data through the primordium station submitted to the mobile host packets will be lost.Therefore, you can switch to lead to the occurrence of burst loss events. 3 packet reordering (Packet Reordering) When the receiving end receives the order and the sending end to send the order of the packets are not at the same time, to packet reordering. The same is the wireless LAN as an example, reorder packets associated with switching. When a mobile host from a base station is switched to another base station, sent to the mobile host or is sent from the mobile host packets through the base station route of new information. Because the data packet transmission will experience a different RTT on different paths, resulting in packet cannot order delivery at. Cisco 2901 Cisco 2901

This entry was posted in Uncategorized and tagged , . Bookmark the permalink.