Huawei Quidway S3500 Series Operation Manual page 636

Operation Manual - System Management
Quidway S3500 Series Ethernet Switches
Clock status: synchronized
Clock stratum: 3
Reference clock ID: 1.0.1.11
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, Quidway2 has been synchronized by Quidway1 and is at stratum 3, higher
than Quidway1 by 1.
Display the sessions of Quidway2 and you will see Quidway2 has been connected with
Quidway1.
[Quidway2] display ntp-service sessions
source
********************************************************************
[12345]1.0.1.11
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
II. NTP peer configuration example
1) Network requirements
On Quidway3, set local clock as the NTP master clock at stratum 2. On Quidway2,
configure Quidway1 as the time server in server mode and set the local equipment as
in client mode. At the same time, Quidway5 sets Quidway4 as its peer.
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
Configure Ethernet Switch Quidway4:
# Enter system view.
<Quidway4> system-view
# Set Quidway1 as the NTP server at stratum 3 after synchronization.
reference stra reach poll
LOCAL(0) 3 377
Huawei Technologies Proprietary
7-12
Chapter 7 NTP Configuration
now offset delay disper
64 16 -0.4 0.0 0.9