
Chapter 4
| System Management Commands
Time
– 161 –
Default Setting
Version number: 3
Command Mode
Global Configuration
Command Usage
◆
This command specifies time servers that the switch will poll for time updates
when set to NTP client mode. It issues time synchronization requests based on
the interval set with the
ntp poll
command. The client will poll all the time
servers configured, the responses received are filtered and compared to
determine the most reliable and accurate time update for the switch.
◆
You can configure up to 50 NTP servers on the switch. Re-enter this command
for each server you want to configure.
◆
NTP authentication is optional. If enabled with the
ntp authenticate
command, you must also configure at least one key number using the
ntp
authentication-key
command.
◆
Use the
no
form of this command without an argument to clear all configured
servers in the list.
Example
Console(config)#ntp server 192.168.3.20
Console(config)#ntp server 192.168.3.21
Console(config)#ntp server 192.168.5.23 key 19
Console(config)#
Related Commands
ntp client (160)
show ntp (161)
show ntp
This command displays the current time and configuration settings for the NTP
client, and indicates whether or not the local time has been properly updated.
Command Mode
Normal Exec, Privileged Exec
Command Usage
This command displays the current time, the poll interval used for sending time
synchronization requests, and the current NTP mode (i.e., unicast).
Example
Console#show ntp
Current Time : Apr 29 13:57:32 2015
Polling : 1024 seconds
Current Mode : unicast
Summary of Contents for ECS4120-28F
Page 36: ...Contents 36...
Page 38: ...Figures 38...
Page 46: ...Section I Getting Started 46...
Page 70: ...Chapter 1 Initial Switch Configuration Setting the System Clock 70...
Page 86: ...Chapter 2 Using the Command Line Interface CLI Command Groups 86...
Page 202: ...Chapter 5 SNMP Commands Additional Trap Commands 202...
Page 210: ...Chapter 6 Remote Monitoring Commands 210...
Page 216: ...Chapter 7 Flow Sampling Commands 216...
Page 278: ...Chapter 8 Authentication Commands PPPoE Intermediate Agent 278...
Page 360: ...Chapter 9 General Security Measures Port based Traffic Segmentation 360...
Page 384: ...Chapter 10 Access Control Lists ACL Information 384...
Page 424: ...Chapter 11 Interface Commands Power Savings 424...
Page 446: ...Chapter 13 Power over Ethernet Commands 446...
Page 456: ...Chapter 14 Port Mirroring Commands RSPAN Mirroring Commands 456...
Page 488: ...Chapter 17 UniDirectional Link Detection Commands 488...
Page 494: ...Chapter 18 Address Table Commands 494...
Page 554: ...Chapter 20 ERPS Commands 554...
Page 620: ...Chapter 22 Class of Service Commands Priority Commands Layer 3 and 4 620...
Page 638: ...Chapter 23 Quality of Service Commands 638...
Page 772: ...Chapter 25 LLDP Commands 772...
Page 814: ...Chapter 26 CFM Commands Delay Measure Operations 814...
Page 836: ...Chapter 28 Domain Name Service Commands 836...
Page 848: ...Chapter 29 DHCP Commands DHCP Relay Option 82 848...
Page 902: ...Section III Appendices 902...
Page 916: ...Glossary 916...
Page 926: ...CLI Commands 926...
Page 937: ......
Page 938: ...E092017 CS R02...