In a certain network environment, there are both switches running RSTP and switches running SIP. Which of the following phenomena will appear in the network? (Multiple choice)

• A.If it is a Huawei switching equipment, RSTP will switch to STP mode. After the STP switching equipment is evacuated from the network, the switching equipment running RSTP can be migrated back to the RSTP working mode
• B.RSTP can interoperate with STP, but the advantages of RSTP such as rapid convergence are lost at this time
• C.If it is a Huawei switching device, STP will switch to RSTP mode, and can be equipped with a switching device that runs RSTP. After being evacuated from the network, the switching device running STP can migrate back to RSTP mode.
• D.RSTP and STP are not interoperable and will perform independent operations

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When two devices with the same priority compete for the role of Master at the same time, the device with the interface with the smaller IP address should be selected as the Master device

• A.TRUE
• B.FALSE

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Which of the following description about the way of BFD session establish is wrong?

• A.The system distinguishes between static BFD sessions and dynamic BFD sessions by dividing the identifier area.
• B.BFD sessions can only be established dynamically
• C.When a BFD session is dynamically established, the local identifier is dynamically allocated.
• D.Statically configuring a BFD session refers to configuring BFD session parameters through the command line, including local identifiers and remote identifiers, etc.

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Which of the following description of the information contained in the OPEN message in the EGP is wrong?

• A.OPEN message contains local AS number information
• B.OPEN message contains Hold time message
• C.OPEN message contains VERSION information
• D.OPEN message contains only BGP message header

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Fast detection technology can detect communication failures with neighboring equipment as early as possible, so that the system can take measures in time to ensure uninterrupted business.

• A.True
• B.False

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