User`s guide

Vigor2110 Series User’s Guide
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not have protection mechanism to avoid the conflict with
neighboring devices of 802.11a/b/g.
Channel Bandwidth 20- the router will use 20Mhz for data transmission and
receiving between the AP and the stations.
20/40 – the router will use 20Mhz or 40Mhz for data
transmission and receiving according to the station
capability. Such channel can increase the performance for
data transit.
Guard Interval It is to assure the safety of propagation delays and
reflections for the sensitive digital data. If you choose auto
as guard interval, the AP router will choose short guard
interval (increasing the wireless performance) or long
guard interval for data transmit based on the station
capability.
Aggregation MSDU Aggregation MSDU can
combine frames with different
sizes.
It is used for improving MAC layer’s performance
for some brand’s clients. The default setting is Enable.
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WMM is an abbreviation of Wi-Fi Multimedia. It defines the priority levels for four access
categories derived from 802.1d (prioritization tabs). The categories are designed with specific
types of traffic, voice, video, best effort and low priority data. There are four accessing
categories - AC_BE , AC_BK, AC_VI and AC_VO for WMM.
APSD (automatic power-save delivery) is an enhancement over the power-save mechanisms
supported by Wi-Fi networks. It allows devices to take more time in sleeping state and
consume less power to improve the performance by minimizing transmission latency. Such
function is designed for mobile and cordless phones that support VoIP mostly.
WMM Capable To apply WMM parameters for wireless data transmission,
please click the Enable radio button.