3com 5500G ユーザーズマニュアル
272
C
HAPTER
31: NTP C
ONFIGURATION
G
UIDE
[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.
reference clock. It can synchronize other devices as a reference clock only when its
clock is synchronized.
NTP Symmetric Peers
Mode Configuration
Mode Configuration
Network Diagram
Figure 83 Network diagram for NTP symmetric peers mode configuration
Networking and
Configuration
Requirements
■
The local clock of Device A is to be used as a reference source, with the stratum
level of 2.
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.
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.
level of 1. Set Device B to take Device C as the symmetric-peer.
Applicable Products
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).
Device A
Device B
Device C
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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