Configure NTP on S series switches

S series switches (except S1700 switches) use NTP to synchronize clocks in the following modes: unicast NTP server/client, peer, broadcast, multicast, and manycast.
The following is an example of synchronizing clock of Switch B with that of Switch A in the unicast NTP server/client mode.
# Set the local clock of Switch A as the NTP master clock, and set the clock stratum to 2.
[SwitchA] ntp-service refclock-master 2
# On Switch B, specify Switch A as its NTP server.
[SwitchB] ntp-service unicast-server 10.0.0.1

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