On the IP bearer network, media and signaling packets must first be guaranteed by PQ scheduling. The IP priority of protocol packets on the routers is 6 or 7, and these packets must also first be guaranteed. Other data packets are placed in the BE queue for scheduling .
How ever, devices cannot be connected in inband Telnet mode if network congestion occurs .
Which of the following statements are true?
A . Telnet packets are discarded during network congestion because the IP priority of Telnet packets is 0 and is scheduled in the BE queue.
B . Telnet packets are protocol packets and join high-priority queues by default.
C . You can improve the priority of Telnet packets and add them to the PQ queue to ensure them during network congestion.
D . The UDP port number for Telnet packets is 23.
Answer: A, C