Explanation/Reference: Explanation: In the output you can see a * next to the ip address that is the primary NTP server. Also the 377 that means everything was received and processed. Negotiation done. https://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/ios-software-releases-110/15171-ntpassoc 377 = 1 1 1 1 1 1 1 1 Time 0: Last eight responses from server were received 376 = 1 1 1 1 1 1 1 0 Time 1: Last NTP response was NOT received (lost in network) Values below this 376 is that Last NTP response was received