Description

When NTP client and active modes are configured, Junos OS ​uses the client mode configuration.

Symptoms

Topology:

Server------MX1(ge-1/2/2/)------(ge-1/2/2)MX2
     |                                                                              |
     |                                                                              |
  -----------------------------------------


When active mode (peer mode) is configured on MX2, it will synchronize the time from MX1: 

MX1# show system ntp 
server 202.118.1.47;

MX1# show interfaces ge-1/2/2 
unit 0 {
    family inet {
        address 12.1.1.1/24;
    }
}

MX2# show system ntp 
peer 12.1.1.1;​  <---------------

MX2# show interfaces ge-1/2/2 
unit 0 {
    family inet {
        address 12.1.1.2/24;
    }
}

MX2# run show ntp status 
status=0644 leap_none, sync_ntp, 4 events, event_peer/strat_chg,
version="ntpd 4.2.0-a Fri Aug 18 17:37:29  2017 (1)",
processor="powerpc", system="JUNOS16.1R5.7", leap=00, stratum=3,
precision=-18, rootdelay=44.621, rootdispersion=963.650, peer=45508,
refid=12.1.1.1,
reftime=de4724dc.0ab26fdc  Mon, Mar  5 2018  2:07:24.041, poll=4,
clock=de4725da.74bfd07e  Mon, Mar  5 2018  2:11:38.456, state=2,
offset=0.065, frequency=2.863, jitter=0.134, stability=0.008


When active and client mode is configured on MX2, it will synchronize the time from the server: 

MX2# show system ntp 
peer 12.1.1.1;                <------- active mode
server 202.118.1.47;          <------- added client mode

MX2# run show ntp status 
status=0644 leap_none, sync_ntp, 4 events, event_peer/strat_chg,
version="ntpd 4.2.0-a Fri Aug 18 17:37:29  2017 (1)",
processor="powerpc", system="JUNOS16.1R5.7", leap=00, stratum=2,
precision=-18, rootdelay=44.470, rootdispersion=190.309, peer=54765,
refid=202.118.1.47,
reftime=de4726fe.5189c840  Mon, Mar  5 2018  2:16:30.318, poll=6,
clock=de472740.220c3820  Mon, Mar  5 2018  2:17:36.132, state=4,
offset=-1.675, frequency=2.834, jitter=0.079, stability=0.005


 

Solution

This is the expected behavior when both modes are configured.

Related Information