Time Protocols

SNTP Unicast Time Polling with Multiple SNTP Servers

SNTP Unicast Time Polling with MultipleSNTP Servers

When running SNTP unicast time polling as the time synchronization method, the switch requests a time update from the server you configured with either the Server Address parameter in the menu interface, or the primary server in a list of up to three SNTP servers configured using the CLI. If the switch does not receive a response from the primary server after three consecutive polling intervals, the switch tries the next server (if any) in the list. If the switch tries all servers in the list without success, it sends an error message to the Event Log and reschedules to try the address list again after the configured Poll Interval time has expired.

Displaying All SNTP Server Addresses Configured on the Switch

The System Information screen in the menu interface displays only one SNTP server address, even if the switch is configured for two or three servers. The CLI show management command displays all configured SNTP servers on the switch.

ProCurve(config)# show

management

 

Status and Counters -

Management Address Information

 

Time Server Address : fe80::215:60ff:fe7a:adc0%vlan10

 

Priority SNTP Server

Address

Protocol Version

-------- ----------------------------------------------

----------------

1

2001:db8::215:60ff:fe79:8980

7

2

10.255.5.24

 

3

3

fe80::123%vlan10

3

Default Gateway

: 10.0.9.80

 

 

VLAN Name

MAC Address

IP Address

------------

-------------------

+ -------------------

DEFAULT_VLAN

001279-88a100

Disabled

VLAN10

001279-88a100

10.0.10.17

Figure 9-20. Example of How To List All SNTP Servers Configured on the Switch

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