Bluetooth Timeline Discontinuities
The following figure depicts a discontinuity between two packets.
Bluetooth Timeline Packet Discontinuity, cross-hatched area.
To keep the timeline and the throughput graph manageable, big jumps in the Bluetooth clock are not represented linearly. Instead, they are shown as discontinuities. A discontinuity is said to exist when the Bluetooth clock goes forward more than two (2) seconds or backwards any amount. A discontinuity is indicated by a cross-hatched slot in the timeline and a corresponding vertical dashed line in the throughput graph. The Bluetooth clock can jump forward when capture is paused or when there is a role switch (in a role switch, a different device becomes master, and since each device keeps its own Bluetooth clock, the clock can change radically), and backwards when there is a role switch or clock rollover
Note: The raw timestamp value is the number of 100-nanosecond intervals since the beginning of January 1, 1601. This is standard Windows time.