Time Protocols
SNTP: Viewing, Selecting, and Configuring
second or third server, you must use the CLI. For more on SNTP operation
with multiple servers, refer to “SNTP Unicast Time Polling with Multiple SNTP
Servers” on page 9-37.
Syntax: timesync sntp
Selects SNTP as the time synchronization method.
Syntax: sntp unicast
Configures the SNTP mode for Unicast operation.
Syntax: sntp server <ip-addr> [version]
Specifies the SNTP server. Server version values are between
1 and 7. The default server version is 3
.
Syntax: sntp server priority <1 - 3 >
Specifies the order in which the configured SNTP servers are
polled for getting the time. Value is between 1 and 3.
Syntax: [no] sntp server priority <1-3> <ip-address> [oobm] [version]
Use the
no version of the command to disable SNTP.
priority specifies the order in which the configured SNTP serv-
ers are polled for the time; allowable values are 1 through 3.
ip-address is an IPv4 or IPv6 address of an SNTP server.
For switches that have a separate out-of-band management
port,
oobm specifies that SNTP traffic goes through that port.
(By default, SNTP traffic goes through the data ports.)
version is the protocol version of the SNTP server. Allowable
values are 1 through 7; default is 3.
Syntax: no sntp server < ip-addr >
Deletes the specified SNTP server.
Note Deleting an SNTP server when only one is configured disables SNTP unicast
operation.
For example, to select SNTP and configure it with unicast mode and an SNTP
server at 10.28.227.141 with the default server version (3) and default poll
interval (720 seconds):
9-13
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