Configuration Example
301
Network diagram
Figure 94
Network diagram for the NTP server mode configuration
Configuration procedures
The following configurations are for the S4200G 1 switch.
1
Display the NTP status of the S4200G 1 switch before synchronization.
<S4200G>
display ntp-service status
clock status: unsynchronized
clock stratum: 16
reference clock ID: none
nominal frequence: 99.8562 Hz
actual frequence: 99.8562 Hz
clock precision: 2^7
clock offset: 0.0000 ms
root delay: 0.00 ms
root dispersion: 0.00 ms
peer dispersion: 0.00 ms
reference time: 00:00:00.000 UTC Jan 1 1900 (00000000.00000000)
2
Configure S4200G 2 to be the time server.
S4200G>
system-view
System View: return to User View with Ctrl+Z.
[S4200G]
ntp-service unicast-server 1.0.1.11
3
After the above configuration, the S4200G 1 switch is synchronized to S4200G 2.
Display the NTP status of the S4200G 1 series switch.
[S4200G]
display ntp-service status
clock status: synchronized
clock stratum: 3
reference clock ID: 1.0.1.11
nominal frequence: 250.0000 Hz
actual frequence: 249.9992 Hz
clock precision: 2^19
clock offset: 0.66 ms
root delay: 27.47 ms
root dispersion: 208.39 ms
peer dispersion: 9.63 ms
reference time: 17:03:32.022 UTC Thu Sep 6 2001 (BF422AE4.05AEA86C)
The above output information indicates that the S4200G 1 series switch is
synchronized to S4200G 2, and the stratum of its clock is 3, one stratum higher than
S4200G 2.
4
Display the information about the NTP sessions of the S4200G 2 series switch. You
can see that the S4200G 1 series switch establishes a connection with S4200G 2.
[S4200G]
dis ntp-service sessions
source reference stra reach poll now offset delay disper
****************************************************
[ 5]1.0.1.11 0.0.0.0 2 1 64 1 350.1 15.1
0.0
Summary of Contents for 4200G 12-Port
Page 10: ...8 CONTENTS...
Page 14: ...4 ABOUT THIS GUIDE...
Page 46: ...32 CHAPTER 5 LOGGING IN THROUGH WEB BASED NETWORK MANAGEMENT SYSTEM...
Page 48: ...34 CHAPTER 6 LOGGING IN THROUGH NMS...
Page 60: ...46 CHAPTER 9 VLAN CONFIGURATION...
Page 64: ...50 CHAPTER 10 MANAGEMENT VLAN CONFIGURATION...
Page 80: ...66 CHAPTER 13 GVRP CONFIGURATION...
Page 98: ...84 CHAPTER 15 LINK AGGREGATION CONFIGURATION...
Page 112: ...98 CHAPTER 18 MAC ADDRESS TABLE MANAGEMENT...
Page 126: ...112 CHAPTER 19 LOGGING IN THROUGH TELNET...
Page 162: ...148 CHAPTER 20 MSTP CONFIGURATION...
Page 274: ...260 CHAPTER 29 IGMP SNOOPING CONFIGURATION...
Page 276: ...262 CHAPTER 30 ROUTING PORT JOIN TO MULTICAST GROUP CONFIGURATION...
Page 298: ...284 CHAPTER 33 SNMP CONFIGURATION...
Page 304: ...290 CHAPTER 34 RMON CONFIGURATION...
Page 338: ...324 CHAPTER 36 SSH TERMINAL SERVICES...
Page 356: ...342 CHAPTER 38 FTP AND TFTP CONFIGURATION...
Page 365: ...Information Center Configuration Example 351 S4200G terminal logging...
Page 366: ...352 CHAPTER 39 INFORMATION CENTER...
Page 378: ...364 CHAPTER 40 BOOTROM AND HOST SOFTWARE LOADING...
Page 384: ...370 CHAPTER 41 Basic System Configuration and Debugging...
Page 388: ...374 CHAPTER 43 NETWORK CONNECTIVITY TEST...
Page 406: ...392 CHAPTER 45 CONFIGURATION OF NEWLY ADDED CLUSTER FUNCTIONS...