User manual

NTP Configuration Menu
Page 12-7
Field Descriptions
The following section describes the fields displayed using the ntpconfig command.
1) Response timeout
This field sets the timeout period for responses to server queries. Server queries come from
the server responsible for providing this client with
NTP time information. The default is 8000
milliseconds.
2) Authentication delay
This field sets a specified time interval that is added to timestamps included in requests to the
server that required authentication. Typically this delay is needed in cases of long delay paths,
or of servers whose clocks are unsynchronized.
3) Authentication key file name
The key file is a file that holds the
NTP authentication keys used during remote access or
configuration of the server responsible for this client. This fields allows you to specify the
name of the key file. The key file should be kept in the /flash directory of the switch.
Specifying a key file expands the
NTP Startup Configuration menu. For more information on
configuring authentication, see Configuring Client/Server Authentication on page 12-9.
4) NTP client mode
This field allows you to set how the client mode of this device sends its server queries. The
options are
U (for unicast), B (for broadcast), or M (for multicast).
Setting the
NTP client mode to broadcast or multicast expands the NTP Startup Configuration
menu. A suboption for the NTP client mode appears, allowing you to specify the broadcast or
multicast address, as shown:
41) NTP multicast address :
Enter the broadcast of multicast address at the prompt by typing line number 41, and equal
sign (=), and the IP address. For example, to specify a multicast address of 204.0.1.1, you
would enter the following:
41=204.0.1.1
5) Enable monitor
This field turns
NTP monitoring on or off. Entering yes activates NTP monitoring, while enter-
ing no deactivates this function. The statistics for monitoring can be viewed using the ntpmon
command in the statistics menu. See NTP Statistics Menu on page 12-23 for more information.
6) Enable NTP server
This field allows you to enable the server portion of the
NTP software for this NTP device.
When set to yes, this device can act as an NTP server for other clients. When set to no, this
device is only a client of another NTP server.