Inalp Networks SmartWare Release 2.10, Software Configuration Manual

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SNTP Client Configuration 187
Software Configuration Guide Release 2.10, Revision 1.00
Configures the SNTP client operating mode to multicast operation
Command Purpose
Step 1 node (cfg)#sntp-client server primary ip-
address
Enters the SNTP primary server IP
address
Step 2 node (cfg)#sntp-client server secondary ip-
address
Enters the SNTP secondary server IP
address
Example: Selecting SNTP Time Servers
In the following example an internal SNTP time server (172.16.1.10) is selected as primary and
utcnist.colorado.edu (128.138.140.44) as secondary SNTP time server.
SN(cfg)# sntp-client server primary 172.16.1.10
SN(cfg)# sntp-client server secondary 128.138.140.44
21.4 Defining SNTP Client Operating Mode
A SNTP client can operate in multicast mode, unicast mode or anycast mode:
• In unicast mode (point to point), the client sends a request to a designated server at its
unicast address and expects a reply from which it can determine the time and, optionally, the
roundtrip delay and local clock offset relative to the server.
•
In anycast mode (multipoint to point), the client sends a request to a designated local
broadcast or multicast group address and expects a reply from one or more anycast servers.
• In multicast mode (point to multipoint), the client sends no request and waits for a broadcast
from a designated multicast server.
Note: Unicast mode is the default SNTP client operating mode.
Procedure
To configure the SNTP client operating mode
Mode
Configure
Command Purpose
Step 1 node (cfg)#sntp-client operating-mode
{unicast | anycast | multicast}
Configures the SNTP client operating
mode to unicast, anycast or multicast
mode
Note: When selecting the anycast operating-mode you have to define the IP address where the
anycast request is sent. Refer to the Section “Defining the SNTP Client Anycast Address” for more
details.
Example: Configuring SNTP Client Operating Mode
Configures the SNTP client operating mode to unicast operation
SN(cfg)# sntp-client operating-mode unicast
Configures the SNTP client operating mode to anycast operation
SN(cfg)# sntp-client operating-mode anycast