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Figure 30 Network diagram for configuration of NTP broadcast mode with authentication
Configuration procedure
1. Set the IP address for each interface as shown in Figure 30. The configuration procedure is omitted.
2. Configuration on Switch C:
# Configure NTP authentication.
[SwitchC] ntp-service authentication enable
[SwitchC] ntp-service authentication-keyid 88 authentication-mode md5 123456
[SwitchC] ntp-service reliable authentication-keyid 88
# Specify Switch C as an NTP broadcast server, and specify an authentication key.
[SwitchC] interface vlan-interface 2
[SwitchC-Vlan-interface2] ntp-service broadcast-server authentication-keyid 88
3. Configuration on Switch D:
# Configure NTP authentication.
<SwitchD> system-view
[SwitchD] ntp-service authentication enable
[SwitchD] ntp-service authentication-keyid 88 authentication-mode md5 123456
[SwitchD] ntp-service reliable authentication-keyid 88
# Configure Switch D to work in the NTP broadcast client mode.
[SwitchD] interface vlan-interface 2
[SwitchD-Vlan-interface2] ntp-service broadcast-client
Now, Switch D can receive broadcast messages through VLAN-interface 2, and Switch C can send
broadcast messages through VLAN-interface 2. Upon receiving a broadcast message from Switch C,
Switch D synchronizes its clock to that of Switch C.
# View the NTP status of Switch D after clock synchronization.
[SwitchD-Vlan-interface2] display ntp-service status
Clock status: synchronized
Clock stratum: 4
Reference clock ID: 3.0.1.31
Nominal frequency: 64.0000 Hz
Actual frequency: 64.0000 Hz
Clock precision: 2^7
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