Zigbee路由中的三张表

 

1. routing table

Filed Name	size	Desc
Destination addr	2 octests	目标的地址，设备地址或者组地址，RFD的地址为它父节点的地址
Status	3 bits	0 - active  1 - DISCOVERY_UNDERWAY  2 - DISCOVERY-FAILED  3 - INACTIVE  4 - VALIDATION_UNDERWAY
No Route cache	1 bit	目标地址不支持（存储）路由 source routes
Many-to-one	1 bit	表示目标地址是concentrator, 通过MANY-TO-ONE建立的路由
Route record required	1 bit	在下一个数据侦发送之前，先发送一个 route record command frame
GroupID flag	1 bit	表示地址是组地址
Next-hop address	2 octets	下一跳的地址

2. route discovery table

Filed Name	Size  (octets)	Desc
Route reuest ID	1	每次发送路由请求(route request )之后自动加1
Source address	2	路由请求发起方地址
Sender address	2	收到路由请求侦的最低开销的上一跳地址，接收方根据 route request id & source address 来判断是否与本条对应
Forward cost	1	记录路由发现中前向跳数， 源地址到本设备
Residual cost	1	记录路由发现中后向跳数， 本设备到目标地址
Expiration time	2	路由发现的倒计算器

3. route record table

Field Name	filed Type	Valid Range	Reference
Network address	integer	0x0000-fff7	the destination network address ofr thsi route record
Relay Count	ineger	0x0000-ffff	the count of relay nodes form concentrator to the destination
Path	set of network addresses	-	a set of addresses that represent the route in order from the concentrator to the destination