Simple Differences Between Sniff Mode & Park Mode
Original Post: Sniff Mode Vs Park Mode (eGroups Msg. )
Date: 2000-07-02
On the sniff mode and on the Park mode, the devices
have a reduced participation on the traffic of messages and
packets. On the sniff mode this occurs only at 'sniff intervals' and
at the park mode at the 'beacons' (at this mode the device also
listens to broadcast messages).
The main difference is that a device in sniff mode will
still keep its AM_ADDR, while a device entering park mode will give up its
AM_ADDR.
Before a device enter park mode, the master will
give them a PM_ADDR (Park Mode address). The parked slave(s) will give up
the active member address and listen to the broadcast traffic in regular
intervals. The park mode timing parameters should be negotiated with the
master using LMP. The main advantages for using Park mode over sniff mode
are that it leads to reduced power consumption, allows more than 7 device
to be connected to a master, and gives more time for the parked slave to
participate on different piconet(s).
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