Field descriptions – Alcatel Carrier Internetworking Solutions Omni Switch/Router User Manual

Page 285

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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.

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