Thông tin

Tác giả Olivier Bonaventure
Hạn chót Không có hạn chót
Giới hạn nộp bài Không có giới hạn
Các tag chuyên mục ethernet

Tags

Đăng nhập

Comparing BPDUs

With the 802.1d protocol, Ethernet switches exchange BPDUs that contain four informations :

  • the Root identifier
  • the Cost to reach the root
  • the Transmitter identifier

The third information contains two parts: the identifier of the switch that sent the BPDU and the identifier of the port where the BPDU has been sent. Each switch uses a unique identifier for each of its ports.


Which BPDUs are better
Select among the list below all the BPDUs that are better than [R=123,C=17,T=15.4]