Configuring Ntp Broadcast Mode - 3Com WX3000 Series Operation Manual

Reference clock ID: 3.0.1.32
Nominal frequency: 60.0002 Hz
Actual frequency: 60.0002 Hz
Clock precision: 2^18
Clock offset: 0.66 ms
Root delay: 27.47 ms
Root dispersion: 208.39 ms
Peer dispersion: 9.63 ms
Reference time: 17:03:32.022 UTC Thu Sep 7 2006 (BF422AE4.05AEA86C)
The output information indicates that the clock of Device C is synchronized to that of Device B and the
stratum level of its local clock is 2, one level lower than Device B.
# View the information about the NTP sessions of Device C (you can see that a connection is
established between Device C and Device B).
[DeviceC] display ntp-service sessions
source
*************************************************************************
[1234]3.0.1.32
[25]3.0.1.31
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
Total associations :

Configuring NTP Broadcast Mode

Network requirements
As shown in
level of 2. Configure Device C to work in the NTP broadcast server mode and send NTP broadcast
messages through Vlan-interface2.
Device A and Device D are two WX3000 series devices. Configure Device A and Device D to work
in the NTP broadcast client mode and listen to broadcast messages through their own
Vlan-interface2.
Figure 1-8 Network diagram for the NTP broadcast mode configuration
Vlan -int2
1.0.1.31/24
Device A
reference
LOCL
127.127.1.0
2
Figure 1-8, the local clock of Device C is set as the NTP master clock, with a stratum
Device B
stra reach poll now offset
1 95 64 42
2 1 64 1 4408.6
Vlan -int2
3.0.1.31 /24
Device C
Vlan -int2
3.0.1.32/24
Device D
1-17
delay disper
-14.3 12.9 2.7
38.7 0.0