R3204P16-HP Load Balancing Module System Management Configuration Guide-6PW101

106

Reference time: 00:00:00.000 UTC Jan 1 1900 (00000000.00000000)

# Specify Device as the NTP server of LB module so that LB module is synchronized to Device.

<LB> system-view

[LB] ntp-service unicast-server 1.0.1.11

# View the NTP status of LB module after clock synchronization.

[LB] display ntp-service status

Clock status: synchronized

Clock stratum: 3

Reference clock ID: 1.0.1.11

Nominal frequency: 64.0000 Hz

Actual frequency: 64.0000 Hz

Clock precision: 2^7

Clock offset: 0.0000 ms

Root delay: 31.00 ms

Root dispersion: 1.05 ms

Peer dispersion: 7.81 ms

Reference time: 14:53:27.371 UTC Sep 19 2005 (C6D94F67.5EF9DB22)

As shown above, LB module has been synchronized to Device, and the clock stratum level of LB module

is 3, while that of Device is 2.

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

between LB module and Device.

[LB] display ntp-service sessions

source reference stra reach poll now offset delay disper

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

[12345] 1.0.1.11 127.127.1.0 2 63 64 3 -75.5 31.0 16.5

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

Total associations : 1

Configuring the NTP symmetric mode

Network requirements

Perform the following configurations to synchronize time among devices:

• As shown in Figure 60, the loc

al clock of LB A is to be configured as a reference source, with the

stratum level of 2.

• LB B works in client mode and LB A is to be used as the NTP server of LB B.

• LB C works in symmetric-active mode and LB B acts as the peer of LB C.