SMC EliteConnect Wireless Bridge Podręcznik Użytkownika Pobierz pdf (Strona 113)

Radio Interface

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Multicast Data Rate – The maximum data rate at which the access point transmits

multicast and broadcast packets on the wireless interface. (Options: 24, 12, 6

Mbps; Default: 6 Mbps)

Fragmentation Length – Configures the minimum packet size that can be

fragmented when passing through the access point. Fragmentation of the PDUs

(Package Data Unit) can increase the reliability of transmissions because it

increases the probability of a successful transmission due to smaller frame size. If

there is significant interference present, or collisions due to high network utilization,

try setting the fragment size to send smaller fragments. This will speed up the

retransmission of smaller frames. However, it is more efficient to set the fragment

size larger if very little or no interference is present because it requires overhead to

send multiple frames. (Range: 256-2346 bytes; Default: 2346 bytes)

RTS Threshold – Sets the packet size threshold at which a Request to Send (RTS)

signal must be sent to a receiving station prior to the sending station starting

communications. The access point sends RTS frames to a receiving station to

negotiate the sending of a data frame. After receiving an RTS frame, the station

sends a CTS (clear to send) frame to notify the sending station that it can start

sending data.

If the RTS threshold is set to 0, the access point always sends RTS signals. If set to

2347, the access point never sends RTS signals. If set to any other value, and the

packet size equals or exceeds the RTS threshold, the RTS/CTS (Request to Send /

Clear to Send) mechanism will be enabled.

The access points contending for the medium may not be aware of each other. The

RTS/CTS mechanism can solve this “Hidden Node Problem.” (Range: 0-2347 bytes:

Default: 2347 bytes)

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SMC EliteConnect Wireless Bridge Podręcznik Użytkownika Strona 113