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HP A3100-8 v2 EI Configuration Manual: Configuring Ntp Broadcast Mode With Authentication

A3100 v2 switch series.
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source
**************************************************************************
[12345] 1.0.1.11
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
Total associations :
Total associations :

Configuring NTP broadcast mode with authentication

Network requirements
As shown in
segments and synchronizes the time among multiple devices as follows:
Switch C's local clock is to be used as a reference source, with the stratum level of 3.
Switch C works in broadcast server mode and sends out broadcast messages from VLAN-interface
2.
Switch D works in broadcast client mode and receives broadcast messages through VLAN-interface
2.
NTP authentication is enabled on both Switch C and Switch D.
Figure 28 Network diagram for configuration of NTP broadcast mode with authentication
Vlan-int3
1.0.1.11/24
Switch A
Configuration procedure
Set the IP address for each interface as shown in
1.
Configuration on Switch C:
2.
# 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
Configuration on Switch D:
3.
# Configure NTP authentication.
reference
127.127.1.0
1
1
Figure
28, Switch C functions as the NTP server for multiple devices on different network
Vlan-int3
1.0.1.10/24
Switch B
stra
reach
poll
2
63
64
Vlan-int2
3.0.1.31/24
Vlan-int2
3.0.1.30/24
Vlan-int2
3.0.1.32/24
Figure
70
now
offset
delay
3
-75.5
31.0
Switch C
Switch D
28. (Details not shown)
disper
16.5

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