31 ntp refclock – CANOGA PERKINS CanogaOS Command Reference User Manual

Page 764

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CanogaOS Command Line Reference

Revision 1.02

Proprietary & Confidential Canoga Pertkins Metro Ethernet Switches

Page 764 of 855


Command Syntax

ntp peer { hostname | address } [key key-id] [prefer] [version number]
no ntp peer
{ hostname | address }

address

IP address of the time server or peer.

hostname

Name of the time server or peer.

key

(Optional)

Defines

the

authentication

key.

key-id

(Optional) Authentication key to use when sending packets to this peer (1 to
64000).

prefer

(Optional) Makes this peer the preferred peer that provides synchronization.

version

(Optional) Defines the Network Time Protocol (NTP) version number.

number

(Optional) NTP version number (1 to 3).


Command Mode

Global configuration


Default

No peers are configured.


Usage

When a peer is configured, the default NTP version number is 3, no authentication key is used, and the
source IP address is taken from the outgoing interface.
Use this command to allow a device to synchronize with a peer, or vice versa. Using the prefer
keyword reduces switching between peers.


Examples

The following example shows how to configure a switch to allow its software clock to be synchronized
with the clock of the peer (or vice versa) at IP address 192.168.22.33 using NTP version 2.
Switch(config)# ntp peer 192.168.22.33 version 2


Related Commands

show ntp
ntp key

40.31 ntp refclock

To configure an external clock source for use with Network Time Protocol (NTP) services, use the ntp
refclock
command in global configuration mode. To disable support of the external time source, use
the no form of this command.


Command Syntax

ntp refclock [stratum number]

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