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NTP master in ASR 9K IOS XR 6.1.3

Hello Experts

We have Cisco ASR9K running as NTP master (stratum 3) server on a loopback interface which is part of a VRF. This ASR syncs to a NTP server in global VRF. I am unable to sync any other ASR9K to this loopback IP, even when we have proper routing within VRF.

Can you guide if NTP server and client is allowed within VRF? The VRF loopbacks communicate with each other via L3 MPLS VPN.

Regards,

Sumanta.

1 REPLY 1

Re: NTP master in ASR 9K IOS XR 6.1.3

You didn't provided the config.

If ASR is in sync with NTP server (somehow, GRT or some VRF), it can serve as an NTP source for clients:

ntp
 ! configure the box to act as a server for downstream clients
! you can use any stratum lower than the box master 8 ! configure source interface for reply packets source vrf <vrf_name> <interface>
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