1)桥ID(Bridge ID)=Bridge Priority+MAC
2) Port ID (Port ID) = Port Priority + Port No
3) the root bridge
4) non-root bridge
5) the root port
6) the specified port
7) blocked ports
8) Root path cost (Path Cost)
9)Forwording Blocking BPDU
1)桥ID(Bridge ID)=Bridge Priority+MAC
2) Port ID (Port ID) = Port Priority + Port No
3) the root bridge
4) non-root bridge
5) the root port
6) the specified port
7) blocked ports
8) Root path cost (Path Cost)
9)Forwording Blocking BPDU