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Webcast-Catalyst9k
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ntp issue 6509

I have a network in which we have enabled MP-BGP , there are multiple VRF configured in network .

Location A we have NTP server with IP 10.1.1.1 in VRF-1 , on Location B we have 7 swicthes out of which 6 access swicthes  4948 I have configured NTP server on all siwtches and its working fine

But the core switch in Location B is not getting sync with NTP server . below is the config which I have put on Core switch

ntp server vrf VRF_1 10.1.1.1

But I can ping the ntp server from the core switch

ping vrf VRF_1 10.1.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms

Thanks for help

1 ACCEPTED SOLUTION

Accepted Solutions
Green

ntp issue 6509

Hi Amit

Try forcing NTP to only use a single interface from the VRF

ntp server vrf VRF_1 10.1.1.1
ntp source

like :-

!
ntp server vrf VRF_1 10.1.1.1
ntp source loopback 1
!

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.
2 REPLIES
Hall of Fame Super Gold

Re: ntp issue 6509

What do you get when you run a debug?

What configuration do you have for your NTP?

What happens if you point your 6500 to NTP synch with your switches?

Green

ntp issue 6509

Hi Amit

Try forcing NTP to only use a single interface from the VRF

ntp server vrf VRF_1 10.1.1.1
ntp source

like :-

!
ntp server vrf VRF_1 10.1.1.1
ntp source loopback 1
!

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.
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