Chapter 19 Wireless
PMG5318-B20B User’s Guide
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Multicast Rate
Select a data rate at which the GPON Device transmits wireless multicast traffic.
If you select a high rate, multicast traffic may occupy all the bandwidth and cause
network congestion.
Basic Rate
Select a minimum transmission rate.
Fragmentation
Threshold
This is the maximum data fragment size that can be sent. Enter a value between 256 and
2432.
RTS Threshold
Use CTS/RTS to reduce data collisions on the wireless network if you have wireless
clients that are associated with the same AP but out of range of one another. When
enabled, a wireless client sends an RTS (Request To Send) and then waits for a CTS
(Clear To Send) before it transmits. This stops wireless clients from transmitting packets
at the same time (and causing data collisions).
A wireless client sends an RTS for all packets larger than the number (of bytes) that you
enter here. Set the RTS equal to or higher than the fragmentation threshold to turn RTS
off.
DTIM Interval
Delivery Traffic Indication Message (DTIM) is the time period after which broadcast and
multicast packets are transmitted to mobile clients in the Power Saving mode. A high
DTIM value can cause clients to lose connectivity with
the network. This value can be set from 1 to 100.
Beacon Interval
When a wirelessly networked device sends a beacon, it includes with it a beacon interval.
This specifies the time period before the device sends the beacon again.
The interval tells receiving devices on the network how long they can wait in low power
mode before waking up to handle the beacon. This value can be set from 20ms to
1000ms. A high value helps save current consumption of the access point.
Global Max Clients
Specify the maximum number (from 1 to 64) of the wireless stations that may connect to
the GPON Device.
XPress™
Technology
Select this for higher speeds, especially if you have both IEEE 802.11b and IEEE 802.11g
wireless clients. The wireless clients do not have to support XPress™ Technology,
although the performance enhancement is greater if they do.
Transmit Power
Set the output power of the GPON Device. If there is a high density of APs in an area,
decrease the output power to reduce interference with other APs.
WMM (Wi-Fi
Multimedia)
Use WMM (Wifi MultiMedia) to prioritize services in wireless traffic.
Select
Auto
to automatically prioritize services according to the ToS value in the IP
header of packets.
Select
Enable
to prioritize services according to the GPON Device’s Quality of Service
settings.
Select
Disable
to not prioritize services in wireless traffic.
WMM No
Acknowledgement
When using WMM, you can enable this to have the GPON Device not re-send data if an
error occurs. This can increase throughput speed but may also increase errors, especially
in an environment with a lot of Radio Frequency (RF) noise. Otherwise leave it disabled.
WMM APSD
When using WMM, enable APSD (Automatic Power Save Delivery) to have the GPON
Device manage radio usage to help increase battery life for battery-powered wireless
clients. APSD uses a longer beacon interval when transmitting traffic that does not
require a short packet exchange interval. For example, web browsing or using e-mail
does not require a short packet exchange interval but Voice Over IP (VoIP) does. The
wireless client must also support APSD for there to be any affect on the battery life.
Apply/Save
Click this to save your changes back to the GPON Device.
Table 71
Wireless Advanced (continued)
LABEL
DESCRIPTION
