Ntp Time Synchronization; Timesync Command; Selecting A Time Synchronization Protocol - HP Aruba JL253A Management And Configuration Manual

security over the Broadcast mode by specifying which time server to use instead of using the first one detected
through a broadcast.

NTP time synchronization

The Network Time Protocol (NTP) synchronizes the time of day among a set of distributed time servers and
clients in order to correlate events when receiving system logs and other time-specific events from multiple
network devices. NTP uses the User Datagram Protocol (UDP) as its transport protocol.

timesync Command

This command is used to configure the protocol used for network time synchronization.
Syntax
[no] timesync { timep | sntp | timep-or-sntp | ntp }
Options
no
Deletes all timesync configurations on the device.
timep
Updates the system clock using TIMEP.
sntp
Updates the system clock using SNTP.
timep-or-sntp
Updates the system clock using TIMEP or SNTP (default).
ntp
Updates the system clock using NTP
Example
switch(config)# timesync
sntp
timep
timep-or-sntp
ntp

Selecting a time synchronization protocol

Procedure
1. Select the time synchronization protocol: TimeP, SNTP, or NTP.
2. Enable the protocol; the choices are:
a. TimeP: DHCP or Manual
b. SNTP: Broadcast or Unicast
c. NTP: Broadcast or Unicast
3. Configure the remaining parameters for the time protocol you selected.
28
Update the system clock using SNTP.
Update the system clock using TIMEP.
Update the system clock using TIMEP or SNTP.
Update the system clock using NTP.
Aruba 2930F / 2930M Management and Configuration Guide
for ArubaOS-Switch 16.08