by default access points send beacon frames every 12 ms.
by default access points send beacon frames every 12 ms.
by default access points send beacon frames every how many ms?
12
like ethernet, 802.11 uses the same range of mac addresses to map ip multicast addresses. however, an 802.11 wireless network will handle multicast traffic differently, depending on the configuration of delivery traffic indication message (dtim), and beacon interval settings. if no stations within the basic service set are in power save mode, multicast packets are sent immediately when they arrive. if there are one or more stations in power save mode, access points then only deliver multicast traffic after each dtim interval, and transmit at one of the supported rates in the basic rate set. in most retail wireless access points/routers, this interval is either 102.4 ms (beacon interval = 100ms, dtim = 1) or 204.8 ms (beacon interval = 100ms, dtim = 2) and the transmit rate is either 1 mbit/s or 6 mbit/s, depending on the operating band and protection mode. as a result, the dtim and beacon interval settings should be adjusted for optimum performance when implementing multicast in wireless networks.
ip multicast
infrastructure network access points send beacons at a defined interval, which is often set to a default 100 tu which is equivalent to 102.4 ms. in the case of an ad hoc network where there are no access points, a peer station is responsible for sending the beacon. after an ad hoc station receives a beacon frame from a peer, it waits a random amount of time. after that random timeout has elapsed, it will send a beacon frame unless another station has already sent one. in this way, the responsibility of sending beacon frames is rotated amongst all the peers in the ad hoc network, while ensuring that beacons will always be sent.
beacon frame