4000 Router Series Network Management and Monitoring Configuration Guide

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 the clock stratum level of Device A is 2.

# Display IPv4 NTP association information for Device B.

[DeviceB] display ntp-service sessions

source reference stra reach poll now offset delay disper

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

[12345]1.0.1.11 127.127.1.0 2 1 64 15 -4.0 0.0038 16.262

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

Total sessions : 1

The output shows that an association has been set up between Device B and Device A.

IPv6 NTP client/server mode configuration

example

Network requirements

As shown in Figure 30, 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 IPv6 NTP server for Device

Figure 30 Network diagram

Configuration procedure

1. Set the IP address for each interface as shown in Figure 30. (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.