zstack profile 简单理解为联盟定义的一种不同厂商通话规则，即ti做的芯片用的zstack能和freescale的芯片用的beestack相互通信，就是为了提高不同厂商之间的互操作性。
苹果做的手机肯定要能和诺基亚做的手机之间能通话，尽管他们用的手机芯片和系统不一样。联盟就类似做这个事情的，所以才会出来个zstack profile。
且看定义：The set of stack parameters that need to be configured to specific values, along with the above device type values, is called a stack profile. The parameters that comprise the stack profile are defined by the ZigBee Alliance.
The ZigBee Alliance has defined two different stack profiles for the ZigBee-2007 specification, Zigbee and Zigbee PRO, with the goal of promoting interoperability. All devices that conform to this stack profile will be able to work in a network with devices from other vendors that also conform to it.
