272CHAPTER 31: NTP CONFIGURATION GUIDE

[DeviceB] display ntp-service sessions

Complete Configuration #

ntp-service unicast-server 1.0.1.11

Precautions The local clock of a 3Com Switch 5500, 5500G, or 4210 cannot be set as a reference clock. It can synchronize other devices as a reference clock only when its clock is synchronized.

NTP Symmetric Peers

Mode Configuration

Network Diagram Figure 83 Network diagram for NTP symmetric peers mode configuration

Device A

3.0.1.31/24

3.0.1.32/24

3.0.1.33/24

Networking and

Configuration

Requirements

Device B

Device C

The local clock of Device A is to be used as a reference source, with the stratum level of 2.

Device C is a Switch 5500 which takes Device A as the time server, and Device A automatically works in the server mode.

The local clock of Device B is to be used as a reference source, with the stratum level of 1. Set Device B to take Device C as the symmetric-peer.

Applicable Products

Product series

Software version

Hardware version

 

 

 

Switch 5500

Release V03.02.04

All versions

Switch 5500G

Release V03.02.04

All versions

Switch 4500

Release V03.03.00

All versions

Switch 4210

Release V03.01.00

All versions

 

 

 

Configuration Procedure Configure Device C.

# Set Device A as the time server.

<DeviceC> system-view

[DeviceC] ntp-service unicast-server 3.0.1.31

Configure Device B (after Device C is synchronized to Device A).

Page 272
Image 272
3Com 5500G, 4210, 4200G manual NTP Symmetric Peers Mode Configuration, Configuration Procedure Configure Device C