222 Operation
Chapter 5 - Command Line Interface
Default Setting
100
Command Mode
Interface Configuration (Wireless)
Command Usage
The beacon signals allow wireless clients to maintain contact with the AP. They may also carry
power-management information.
Example
5.18.13 dtim-period This command configures the rate at which stations in sleep mode must wake up
to receive broadcast/multicast transmissions.
Syntax
dtim-period <interval>
interval - Interval between the beacon frames that transmit broadcast or multicast traffic.
(Range: 1-255 beacon frames)
Default Setting
1
Command Mode
Interface Configuration (Wireless)
Command Usage
• The Delivery Traffic Indication Map (DTIM) packet interval value indicates how often the MAC
layer forwards broadcast/multicast traffic. This parameter is necessary to wake up stations that
are using Power Save mode.
• The DTIM is the interval between two synchronous frames with broadcast/multicast information.
The default value of 2 indicates that the AP will save all broadcast/multicast frames for the Basic
Service Set (BSS) and forward them after every second beacon.
• Using smaller DTIM intervals delivers broadcast/multicast frames in a more timely manner,
causing stations in Power Save mode to wake up more often and drain power faster. Using higher
DTIM values reduces the power used by stations in Power Save mode, but delays the
transmission of broadcast/multicast frames.
Example
5.18.14 fragmentation-length This command configures the minimum packet size that can be fragmented when
passing through the AP.
Enterprise AP(if-wireless g)#beacon-interval 150
Enterprise AP(if-wireless g)#
Enterprise AP(if-wireless g)#dtim-period 100
Enterprise AP(if-wireless g)#