单项选择题
A. radius update-source-address
B. radius calling-station-format
C. radius accounting server 10.13.7.55
D. radius authentication server 10.13.7.55
单项选择题 Which CLI command ensures that RADIUS packets are being sent to and received from the RADIUS server?（）
单项选择题 Which CLI command displays the PPPoE customers that are currently connected to the ERX?（）
单项选择题 Which configuration command limits the number of connections supported on a single PPPoE major interface?（）