HPE FlexFabric 5700 Series Network Management And Monitoring Configuration Manual page 50

[SwitchA] ntp-service authentication enable
[SwitchA] ntp-service authentication-keyid 88 authentication-mode md5 simple 123456
[SwitchA] ntp-service reliable authentication-keyid 88
# Configure Switch A to operate in NTP broadcast client mode and receive NTP broadcast
messages on VLAN-interface 2.
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] ntp-service broadcast-client
3. Configure Switch B:
# Enable the NTP service.
<SwitchB> system-view
[SwitchB] ntp-service enable
# Enable NTP authentication on Switch B. Configure an NTP authentication key, with the key ID
of 88 and key value of 123456. Input the key in plain text and specify it as a trusted key.
[SwitchB] ntp-service authentication enable
[SwitchB] ntp-service authentication-keyid 88 authentication-mode md5 simple 123456
[SwitchB] ntp-service reliable authentication-keyid 88
# Configure Switch B to operate in broadcast client mode and receive NTP broadcast
messages on VLAN-interface 2.
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] ntp-service broadcast-client
4. Configure Switch C:
# Enable the NTP service.
<SwitchC> system-view
[SwitchC] ntp-service enable
# Specify the local clock as the reference source, with the stratum level 3.
[SwitchC] ntp-service refclock-master 3
# Configure Switch C to operate in NTP broadcast server mode and use VLAN-interface 2 to
send NTP broadcast packets.
[SwitchC] interface vlan-interface 2
[SwitchC-Vlan-interface2] ntp-service broadcast-server
[SwitchC-Vlan-interface2] quit
5. Verify the configuration:
# NTP authentication is enabled on Switch A and Switch B, but not on Switch C, so Switch A
and Switch B cannot synchronize their local clocks to Switch C. Display the NTP service status
on Switch B.
[SwitchB-Vlan-interface2] display ntp-service status
Clock status: unsynchronized
Clock stratum: 16
Reference clock ID: none
6. Enable NTP authentication on Switch C:
# Enable NTP authentication on Switch C. Configure an NTP authentication key, with the key ID
of 88 and key value of 123456. Input the key in plain text, and specify it as a trusted key.
[SwitchC] ntp-service authentication enable
[SwitchC] ntp-service authentication-keyid 88 authentication-mode md5 simple 123456
[SwitchC] ntp-service reliable authentication-keyid 88
# Specify Switch C as an NTP broadcast server, and associate the key 88 with Switch C.
[SwitchC] interface vlan-interface 2
[SwitchC-Vlan-interface2] ntp-service broadcast-server authentication-keyid 88
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