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346 CHAPTER 11: SYSTEM MANAGEMENT
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, SW88004 has been synchronized by SW88003 and it is at stratum 3,
higher than SW88003 by 1.
Display the status of SW88004 sessions and you will see SW88004 has been
connected to SW88003:
[SW88002]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 0.0.0.0 16 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
Configuring NTP Multicast Mode
SW88003 sets the local clock as the master clock at stratum 2, and multicast
packets from Vlan-interface2. Set SW88004 and SW88001 to receive multicast
messages from their respective Vlan-interface2. See Figure 1-2.
Configure Switch SW88003:
1 Enter system view.
<SW88003> system-view
2 # Set the local clock as a master NTP clock at stratum 2.
[SW88003]ntp-service refclock-master 2
3 Enter Vlan-interface2 view.
[SW88003]interface vlan-interface 2
4 Set it as a multicast server.
[SW88003-Vlan-Interface2]ntp-service multicast-server