Huawei Quidway S6500 Series Operation Manual page 608

Operation Manual - System Management
Quidway S6500 Series Ethernet Switches
Service status: enabled
Clock status: synchronized
Clock stratum: 2
Reference clock ID: 3.0.1.31
Nominal frequency: 60.0002 Hz
Actual frequency: 60.0002 Hz
Clock precision: 2^17
Clock offset: -9.8258 ms
Root delay: 27.10 ms
Root dispersion: 49.29 ms
Peer dispersion: 10.94 ms
Reference time: 19:21:32.287 UTC Oct 24 2004(C5267F3C.49A61E0C)
By this time, Quidway4 has been synchronized by Quidway5 and it is at stratum 2, or
higher than Quidway5 by 1.
Display the sessions of Quidway4 and you will see Quidway4 has been connected with
Quidway5.
[Quidwa4] display ntp-service sessions
source
********************************************************************
[12345]3.0.1.33
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
III. Configure NTP broadcast mode
1) Network requirements
On Quidway3, set local clock as the NTP master clock at stratum 2 and configure to
broadcast packets from Vlan-interface2. Configure Quidway4 and Quidway1 to listen to
the broadcast from their Vlan-interface2 respectively.
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 the NTP master clock at stratum 2.
[Quidway3] ntp-service refclock-master 2
# Enter Vlan-interface2 view.
[Quidway3] interface vlan-interface 2
# Set it as broadcast server .
reference stra reach poll
LOCAL(0) 2 377
Huawei Technologies Proprietary
7-14
Chapter 7 NTP Configuration
now offset delay disper
64 16 0.0 0.0 0.9