Ntp Multicast Mode Configuration - Huawei Quidway S3900 Series Operation Manual

Operation Manual -- NTP
Quidway S3900 Series Ethernet Switches-Release 1510
[S3900-2-Vlan-interface2]
# Configure S3900-2 to be a broadcast client.
[S3900-2-Vlan-interface2] ntp-service broadcast-client
The above configuration configures S3900-1 and S3900-2 to listen to broadcast
packets through their VLAN interface 2, and Quidway3 to send broadcast packets
through VLAN interface 2. Because S3900-2 does not reside in the same network
segment with Quidway3, S3900-2 cannot receive broadcast packets sent by Quidway3,
while S3900-1 is synchronized to Quidway3 after receiving broadcast packets sent by
Quidway3.
View the status of S3900-1 after the synchronization.
[S3900-1] display ntp-service status
Clock status: synchronized
Clock stratum: 3
Reference clock ID: 3.0.1.31
Nominal frequency: 250.0000 Hz
Actual frequency: 249.9992 Hz
Clock precision: 2^19
Clock offset: 198.7425 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 6 2001 (BF422AE4.05AEA86C)
The output information indicates that S3900-1 is synchronized to Quidway3, with the
clock stratum of 3, one stratum higher than Quidway3.
# View the information about the NTP sessions of S3900-1 and you can see that a
connection is established between S3900-1 and Quidway3.
[S3900-1] display ntp-service sessions
source
**************************************************************************
[1]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
Quidway3 sets the local clock to be NTP master clock, with the clock stratum of 2. It
advertises multicast packets through VLAN interface 2.
Configure S3900-1 and S3900-2 to listen to multicast packets through their VLAN
interface 2.
reference stra reach poll now offset
127.127.1.0 2
Huawei Technologies Proprietary
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Chapter 1 NTP Configuration
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delay disper
199.53 9.7