10=Spanning Tree Explorer
11=All Routes Explorer
1 bit reserved.
5 bits for the length in bytes (up to 18) of the RIF field.
1 direction bit:
0=frame moves forward
1=frame moves in reverse
4 bits for largest frame size in bytes handled (up to 4472).
3 bits reserved.
Each subsequent series of two bytes (such as 0011h and
7001h in the example above) describe the LAN ID, in the 12
most significant bits, and the bridge ID number, in the 4 least
significant bits, of the next hop to the destination.
Using the Network Control Language
Accessing Bridging and Routing Tables
16-68