HP PROCURVE 2520 Management And Configuration Manual page 199

Disabling the SNTP Mode. If you want to prevent SNTP from being used
even if selected by timesync (or the Menu interface's Time Sync Method param­
eter), configure the SNTP mode as disabled.
Syntax: no sntp
For example, if the switch is running SNTP in Unicast mode with an SNTP
servers as shown in figure 9-9, no sntp changes the SNTP configuration as
shown below, and disables time synchronization on the switch.
ProCurve(config)# no sntp
ProCurve(config)# show sntp
SNTP Configuration
Time Sync Mode: Sntp
SNTP Mode : disabled
Poll Interval (sec) [720] : 720
Priority SNTP Server Address
-------- ---------------------------------------------- ----------------
1 2001:db8::215:60ff:fe79:8980
2 10.28.227.141
3 fe80::123%vlan10
Figure 9-11. Example of Disabling Time Synchronization by Disabling the SNTP Mode
Disables SNTP by changing the SNTP mode configuration to
Disabled.
Even though the Time Sync Mode is set to Sntp,
time synchronization is disabled because no
sntp has disabled the SNTP Mode parameter.
Time Protocols
SNTP: Viewing, Selecting, and Configuring
Protocol Version
7
4
3
9-15