H3C S5500-EI series Operation Manual page 1180

Operation Manual – NTP
H3C S5500-EI Series Ethernet Switches
II. Network diagram
Figure 1-12 Network diagram for configuration of NTP broadcast mode with
authentication
III. Configuration procedure
1) Configuration on Switch C:
# Specify the local clock as the reference source, with the stratum level of 3.
<SwitchC> system-view
[SwitchC] ntp-service refclock-master 3
# 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
2) 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
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Chapter 1 NTP Configuration