Ntp Multicast Mode Configuration - H3C S5600 series Operation Manual

Operation Manual – NTP
H3C S5600 Series Ethernet Switches-Release 1510
Clock stratum: 3
Reference clock ID: 3.0.1.31
Nominal frequency: 60.0002 Hz
Actual frequency: 60.0002 Hz
Clock precision: 2^18
Clock offset: 0.0000 ms
Root delay: 0.00 ms
Root dispersion: 16.38 ms
Peer dispersion: 10.94 ms
Reference time: 08:07:58.899 UTC Apr 25 2006(C7F8575E.E6650614)
The output information indicates that S5600-1 is synchronized to H3C3, with the clock
stratum of 3, one stratum higher than H3C3.
# View the information about the NTP sessions of S5600-1 and you can see that a
connection is established between S5600-1 and H3C3.
[S5600-1] display ntp-service sessions
source
*************************************************************************
[1234] 3.0.1.31
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured

1.7.4 NTP Multicast Mode Configuration

I. Network requirements
H3C3 sets the local clock to be NTP master clock, with the clock stratum of 2. It
advertises multicast packets through VLAN interface 2.
Configure S5600-1 and S5600-2 to listen to multicast packets through their VLAN
interface 2.
Note:
This example assumes that H3C3 is a switch that supports the local clock being the
master clock.
reference stra reach poll now offset
127.127.1.0
1-18
Chapter 1 NTP Configuration
2 2 64 32
delay disper
0.0 0.0 0.8