Configuring C2960 for NTP

[bobby818]

Hardware - C2960

IOS - 12.2(25)

I am examining a requirement to configure C2960 as below

NTP internet sources > C2960 > Domain Controllers > other devices and servers

In theory what I am trying to achieve is to synchronize C2960 with multiple NTP internet sources which then would act as server and serve as NTP source to all windows domain controllers. Rest of the environment (other servers/host PC and switches) will synchronise with windows domain controllers to seek time.

Please could you advise how this can be achieved?

On the C2960 there is SVI available and routed for management access.

Following are options under interface Vlan

C2960(config-if)#ntp ?

broadcast Configure NTP broadcast service

disable   Disable NTP

Below on global config mode

C2960(config)#ntp ?

access-group       Control NTP access

authenticate       Authenticate time sources

authentication-key Authentication key for trusted time sources

broadcastdelay     Estimated round-trip delay

clock-period       Length of hardware clock tick

logging             Enable NTP message logging

max-associations   Set maximum number of associations

peer               Configure NTP peer

server             Configure NTP server

source             Configure interface for source address

trusted-key         Key numbers for trusted time sources

Thank you       

[Reza Sharifi · Accepted solution]

Here is the config guide for the 2900 series to follow and configure your switch as an NTP client.

http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_55_se/configuration/guide/swadmin.html#wp1053923

Is this what you looking for?

HTH

[bobby818]

Thanks Reza, I will follow this document and try configuring up NTP.

Cheers

[bobby818]

Hi,

Sorry it is confusing, should the switch be configured as peer or server?

Because I need the switch to synchronize with internet source and then act as source back to internal networks only.

Thank you

[mrinalsaha]

yes, it should be configured as peer