In the format of configuring BPDU packets, in addition to ensuring that the STP format is basically the same, RSTP made some minor changes. The following description which is correct?

In the format of configuring BPDU packets, in addition to ensuring that the STP format is basically the same, RSTP made some minor changes. The following description which is correct?

A. Type field, the configuration BPDU type is no longer 0 but 2

B. The device running STP will discard when it receives the configuration BPDU of RSTP.

C. The flags field uses the middle 6 bits that were originally reserved. The changed configuration BPDU is called RST BPDU.

D. In the flag field, Bito is TCA.

View Answer

Answer: ABC