PAN and Extended PAN ID

• PAN ID: 16-bit unique identifier, chosen at network formation time
• Extended PAN ID: 64-bit unique identifier, chosen at network formation time

For a given RF channel and within a given local area, the PAN ID and Extended PAN ID combination is chosen by the coordinator to be unique at the time the network is formed. While this does not completely prevent conflicts, the probability is very low.

More information about the Extended PAN ID is available in the FAQ: What is an extended PAN ID and how is it used?

Common Questions

• Can the application choose its own PAN ID at network formation?

The ZC may specify the PAN ID and the Extended PAN ID, although ZigBee recommends that you allow the ZC to assign a random EPID to avoid conflict with deployed instances of your application in the field.