Operation Manual - System Management
Quidway S3500 Series Ethernet Switches Chapter 7 NTP Configuration
Huawei Technologies Proprietary
7-15
clock stratum: 3
reference clock ID: LOCAL(0)
nominal frequency: 100.0000 Hz
actual frequency: 100.0000 Hz
clock precision: 2^17
clock offset: 0.0000 ms
root delay: 0.00 ms
root dispersion: 10.94 ms
peer dispersion: 10.00 ms
reference time: 20:54:25.156 UTC Mar 7 2002(C0325201.2811A112)
By this time, Quidway4 has been synchronized by Quidway3 and it is at stratum 3,
higher than Quidway3 by 1.
Display the status of Quidway4 sessions and you will see Quidway4 has been
connected to Quidway3.
[Quidway2] display ntp-service sessions
source reference stra reach poll now offset delay disper
[12345]127.127.1.0 LOCAL(0) 7 377 64 57 0.0 0.0 1.0
[5]1.0.1.11 LOCAL(0) 3 0 64 - 0.0 0.0 0.0
[5]128.108.22.44 0.0.0.0 16 0 64 - 0.0 0.0 0.0
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
IV. Configure NTP multicast mode
1) Network requirements
Quidway3 sets the local clock as the master clock at stratum 2 and multicast packets
from Vlan-interface2. Set Quidway4 and Quidway1 to receive multicast messages from
their respective Vlan-interface2.
2) Networking diagram
See Figure 7-2.
3) Configuration procedure
Configure Ethernet Switch Quidway3:
# Enter system view.
<Quidway3> system-view
# Set the local clock as a master NTP clock at stratum 2.
[Quidway3] ntp-service refclock-master 2
# Enter Vlan-interface2 view.
[Quidway3] interface vlan-interface 2
# Set it as a multicast server.
[Quidway3-Vlan-Interface2] ntp-service multicast-server
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