Exam 200-301 topic 1 question 557 discussion

The lower the stratum level, the more accurate the reference clock is considered to be. An NTP server that uses its internal hardware or external reference clock sets its own stratum level. Then, an NTP client adds 1 to the stra- tum level it learns from its NTP server, so that the stratum level increases the more hops away from the original clock source.

To expand on this for anyone in the future. The 4 is the stratum level. You do not need to specify the stratum level, you can simply enter the command R1(config)#ntp master Without specifying the stratum level, the default stratum is 8. Example: (no prior NTP configurations were done) R1(config)#ntp master R1(config)#do show ntp associations address ref clock st when poll reach delay offset disp *~127.127.1.1 .LOCL. 7 3 64 3 0.00 0.00 0.01 * sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured R1#show ntp status Clock is synchronized, stratum 8 (I have omitted any irrelevant gibberish from these commands btw) 127.127.1.1 is the loopback address (note: not a loopback 'interface') Now if you did R1(config)#ntp master 4 R1(config)#do show ntp ass address ref clock st when poll reach delay offset disp *~127.127.1.1 .LOCL. 3 5 64 3 0.00 0.00 0.01 R1(config)#do show ntp status Clock is synchronized, stratum 4

m also wondering

is it ntp level? max is 1>2>3>4