R21xx-HP FlexFabric 11900 Network Management and Monitoring Configuration Guide

NTP client/server mode configuration example

Network requirements

As shown in Figure 9, the local clock of Device A is to be used as a reference source, with the stratum level

2. Device B operates in client mode and Device A is to be used as the NTP server for Device B.

Figure 9 Network diagram

Configuration procedure

1. Set the IP address for each interface as shown in Figure 9. (Details not shown.)

2. Configure Device A:

# Enable the NTP service.

<DeviceA> system-view

[DeviceA] ntp-service enable

# Specify the local clock as the reference source, with the stratum level 2.

[DeviceA] ntp-service refclock-master 2

3. Configure Device B:

# Enable the NTP service.

<DeviceB> system-view

[DeviceB] ntp-service enable

# Specify Device A as the NTP server of Device B so that Device B is synchronized to Device A.

[DeviceB] ntp-service unicast-server 1.0.1.11

4. Verify the configuration:

# Display the NTP status of Device B after clock synchronization.

[DeviceB] display ntp-service status

Clock status: synchronized

Clock stratum: 3

System peer: 1.0.1.11

Local mode: client

Reference clock ID: 1.0.1.11

Leap indicator: 00

Clock jitter: 0.000977 s

Stability: 0.000 pps

Clock precision: 2^-10

Root delay: 0.00383 ms

Root dispersion: 16.26572 ms

Reference time: d0c6033f.b9923965 Wed, Dec 29 2010 18:58:07.724

The output shows that Device B has been synchronized to Device A, the clock stratum level of

Device B is 3, and that of Device A is 2.

# Display IPv4 NTP association information for Device B.

[DeviceB] display ntp-service sessions