User Manual

Configure System Information
58
M6100, M5300, and M7100 Series Managed Switches
8. Select a Client mode radio button to specify the mode of operation of the SNTP client:
• Disable. SNTP is not operational. No SNTP requests are sent from the client and no
received SNTP messages are processed.
• Unicast. SNTP operates in a point-to-point fashion. A unicast 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 round-trip delay and local clock offset relative
to the server.
• Broadcast. SNTP operates in the same manner as multicast mode but uses a local
broadcast address instead of a multicast address. The broadcast address has a
single subnet scope while a multicast address has Internet wide scope.
The default value is Unicast.
9. In the Port field, specify the local UDP port that the SNTP client receives server packets on.
The allowed range is 1025 to 65535 and the value 123. The default value is 123. When
the default value is configured, the actual client port value used in SNTP packets is
assigned by the operating system.
10. Select the Source Interface to use for the SNTP client.
Possible values are as follows:
• None
• VLAN 1
• Routing interface
• Routing VLAN
• Routing loopback interface
• Tunnel interface
• Service port