NTP

NTP

Network Time Protocol

NTP is a protocol used for synchronizing the time for devices connected to a network.

NTP expresses the structure of the time source using a hierarchical structure.

Each layer of a hierarchical structure is called stratum, and there are up to 15 layers with stratum 0 being the highest.

<Hierarchical structure>
stratum 0: An atomic clock or the GPS
stratum 1: The NTP server referring to stratum 0
(Omitted)

stratum 15: The NTP server referring to stratum 14

▼ Example of the NTP server
NTP service released by NICT (NTP server name: ntp.nict.jp)

In the AG10/AR10 series, the NTP setting status can be checked by the following command.

amnimo(cfg)# show config ntp
# ---- ntp configure ----
ntp
enable
max-update-skew 100.0
make-steps 1 3
server ntp.nict.jp min 6 max 10 polltarget 6 port 123
no gps
exit