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NTP Configuration Menu

Page 12-6

NTP Conﬁguration Menu

To view the NTP configuration menu, enter the ntconfig command at the system prompt. If

you are in verbose mode the NTP configuration menu is displayed. Otherwise, enter a ques-

tion mark (?) at the prompt to display this menu:

Command NTP Configuration Menu

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

ntpiconfig Initial NTP configuration

ntpaddpeer configure a new peer association

ntpaddserv configure a new server

ntpbcast configure broadcasting time service

ntpunconfig unconfigure existing peer assocations

ntpprec set the server's advertised precision

ntpfudge set/change one of a clock's fudge factors

Related Menus:

Ntconfig Ntinfo Ntstats Ntadmin Ntaccess

The main menu options are shown in the Related Menus list for quick access if you need to

change menus.

A switch can be configured to act as an

NTP client, or an NTP client/server. An NTP client

receives updates from an NTP server without passing on time information to other clients,

while and NTP client/server receives time information from a server, and acts as a server for

other clients in a higher stratum.

Conﬁguring an NTP Client

To set up the NTP client, use the ntpiconfig command as follows:

1. Enter the command as shown, at the system prompt:

ntpiconfig

The following menu appears:

NTP Startup Configuration

1) Response timeout : 0

2) Authentication delay : No

3) Authentication key file name : UNSET

4) NTP client mode : Ucast

5) Enable monitor : No

6) Enable NTP server : No

2. Adjust the configurable variables for this NTP client as needed by entering the line

number, and equal sign, and a new value at the system prompt, as shown:

For example, to change the Response timeout to 10, you would enter 1 (the line number

for

Response timeout), an equal sign (=), and the number 10 (the new value), as shown:

1=10

After enabling NTP for this switch, you need to configure at least one peer association, unless

you will be supplying time synchronization. In that case, you need to configure a reference

clock.

For information on adding a peer association, see Configuring a New Peer Association on

page 12-12.