R3303-HP HSR6800 Routers Network Management and Monitoring Configuration Guide

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)

The output shows that Router B has synchronized to Router A. The stratum level of Router B is 3, and

that of Router A is 2.

# Display the NTP session information of Router B, which shows that an association has been set

up between Router B and Router A.

[RouterB] display ntp-service sessions

source reference stra reach poll now offset delay disper

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[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

NTP symmetric peers mode configuration example

Network requirements

Perform the following configurations to synchronize time among devices:

• As shown in Figure 27, the local c

lock of Router A is to be configured as a reference source, with the

stratum level 2.

• The local clock Router C is to be configured as a reference source, with the stratum level 1.

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

• Router C operates in symmetric-active mode and Router B acts as the peer of Router C.

Figure 27 Network diagram