Chengdu Ebyte Electronic Technology Co., Ltd
E104-BT10-IPX User Manual
Copyright ©2012–2019
，
C
hengdu Ebyte Electronic Technology Co., Ltd
4-9
4.1.1 Network Key
（
NetKey
）
Network keys are used to protect network layer communications. It is a key generated using a random number generator that
meets the requirements of the core specification.
（
see details from Mesh Profile3.86
）
4.1.2 Application key
（
AppKey
）
Application keys are used to protect the upper transmission layer. Generated using a compatible random number generator, the
application key identifier (AID) is used to identify the application key
（
See details from Mesh Profile3.86
）
4.1.3 Device role
In SIG MESH protocol , roles include
node
、
low power node
、
relay node
、
friend node
、
proxy node. Related functions are
as explained below,
Node
：
An edge node in the entire mesh network. It has the ability to receive and transmit data, but cannot work as a repeater.
Low power node:
Low-power nodes, due to the existence of the friend node, the low-power nodes do not need to always send or
listen to the data packets on the broadcast channel, and only need to query whether there is data on the friend node. (not supported at
this time)
Relay node
：
It is the core node of the network layer to extend network coverage. After receiving the data packet sent by other
nodes, it determines whether it needs to be forwarded according to the judgment condition of the network protocol.
