Configuring Ntp Client/Server Mode With Authentication - HP 4800G Series Configuration Manual

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Clock stratum: 3

Reference clock ID: 3.0.1.31

Nominal frequency: 64.0000 Hz

Actual frequency: 64.0000 Hz

Clock precision: 2^7

Clock offset: 0.0000 ms

Root delay: 40.00 ms

Root dispersion: 10.83 ms

Peer dispersion: 34.30 ms

Reference time: 16:02:49.713 UTC Sep 19 2005 (C6D95F6F.B6872B02)

As shown above, Switch A has been synchronized to Switch C, and the clock stratum level of Switch A

is 3, while that of Switch C is 2.

# View the NTP session information of Switch A, which shows that an association has been set up

between Switch A and Switch C.

[SwitchA-Vlan-interface3] display ntp-service sessions

**************************************************************************

[1234] 3.0.1.31

note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured

Total associations :

Refer to IGMP Configuration in the IP Multicast volume for how to configure IGMP and PIM.

Configuring NTP Client/Server Mode with Authentication

Network requirements

The local clock of Switch A is to be used as the master clock, with a stratum level of 2.

Switch B works in the client mode and Switch A is to be used as the NTP server of Switch B, with

Switch B as the client.

NTP authentication is to be enabled on both Switch A and Switch B.

Figure 1-11 Network diagram for configuration of NTP client/server mode with authentication

Configuration procedure

Configuration on Switch B:

# Enable NTP authentication on Switch B.

<SwitchB> system-view

[SwitchB] ntp-service authentication enable

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