如图所示,RTA是一台连接到帧中继交换机的DTE设备,若RTA使用动态映射建立PVC连接,则下列哪些命令不需要配置在RTA上?()
A[RTA-Serial1/0/1]ip
B[RTA-Serial1/0/1]link-protocol
C[RTA-Serial1/0/1]fr
D[RTA-Serial1/0/1]fr
A[RTA-Serial1/0/1]ip
B[RTA-Serial1/0/1]link-protocol
C[RTA-Serial1/0/1]fr
D[RTA-Serial1/0/1]fr