H3c-technologies H3C WX5500E Series Access Controllers Manuel d'utilisateur télécharger pdf (Page 33)

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 2012 (C6D94F67.5EF9DB22)

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

and that of Device A is 2.

# Display NTP session information for Device B, which shows that an association has been set up

between Device B and Device A.

[DeviceB] 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

NTP symmetric peers mode configuration example

Network requirements

• As shown in Figure 12, configure Device A as a reference source, with the stratum level 2.

• Configure Device B to operate in client mode and use Device A as its NTP server.

• Configure Device C to operate in symmetric-active mode and use Device B as its symmetric-passive

peer.

Figure 12 Network diagram

Configuration procedure

1. Configure IP addresses for interfaces. (Details not shown.)

2. Configure Device B:

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 103 104

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H3c-technologies H3C WX5500E Series Access Controllers Manuel d'utilisateur Page 33