ZDC ZN-7200-2EI-O User Manual

Contents

ZDC ZN-7200-2EI-O User Manual Manual pdf 52 page image

52ports identified as members of the specific multicast group.HT Protect: Enable HT (High Throughput) protect to ensure HT transmission with MAC mechanism.Under 802.11n mode, wireless client can be divided into HT STA and Non-HT STA, among whichthe one with HT protect enabled gets higher throughput.Preamble Type: It defines some details on the 802.11 physical layer. “Long” and “Auto” areavailable.RTS Threshold: The IEEE 802.11n ZAC Access Point sends RTS (Request to Send) frames tocertain receiving station and negotiates the sending of a data frame. After receiving an RTS, thatSTA responds with a CTS (Clear to Send) frame to acknowledge the right to start transmission. Thesetting range is 0 to 2346 in byte. Setting it too low may result in poor network performance.Leave it at its default of 2346 is recommended.Fragmentation Threshold: Specify the maximum size in byte for a packet before data isfragmented into multiple packets. Setting it too low may result in poor network performance. Leaveit at its default of 2346 is recommended.Beacon Interval: Specify the frequency interval to broadcast packets. Enter a value between 20and 1024.DTIM Interval: DTIM, which stands for Delivery Traffic Indication Message, is contained in the datapackets. It is for enhancing the wireless transmission efficiency. The default is set to 1. Enter a valuebetween 1 and 255.Channel Protection Mode: This is to avoid conflict with other wireless network and boost the abilityof your device to catch all 802.11g transmissions. However, it may decrease wireless networkperformance. Compared to CTS-Self; the transmission amount of CTS-RTS is much lower.Distance: To decrease the chances of data retransmission at long distance, the IEEE 802.11n ZACAccess Point can automatically adjust proper ACK timeout value by specifying distance of the twonodes.Access ControlThe Access Control appoints the authority to wireless client on accessing IEEE 802.11n ZAC AccessPoint, thus a further security mechanism is provided. This function is available only under AP/Routermode.