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New Member

NTP Access-group Problem

Hi

I have a setup like :

sample.JPG

The R-1 has an NTP server and NTP peer(R-2).

On R-1 i did like: ntp sever <ntp-sever ip add>

                         ntp peer <R-2> Loopback0

                         ntp source loopback0

                         ntp update-calender

Similarly i did on R-2,but when i add a ntp access-group peer <ACL_NO> on both the routers.

Where ACL_N0 is permit host <R-2 Loopback0>

                           permit host <ntp server ip add>

With this setup the routers should sync with each other in case one's link(Let R-1 to NTP Server ) to NTP server goes down.

But the

* master (synced) value remains unchanged even when the link (R-1 to NTP Server) is down

1 REPLY
New Member

NTP Access-group Problem

NTP peers would sync with each other when the peer is on a better Datum level (worst is 16).So if both the switches are on same datum level they will consider themselves as master.

Also use the command sh ntp status to look for the time since NTP updates came from a NTP server.

HTH

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