–
80
–
Chapter 3
| Basic Management Tasks
Setting the System Clock
You can enable NTP authentication to ensure that reliable updates are received
from only authorized NTP servers. The authentication keys and their associated
key number must be centrally managed and manually distributed to NTP
servers and clients. The key numbers and key values must match on both the
server and client.
◆
Polling Interval
–
Shows the interval between sending requests for a time
update from NTP servers. (Fixed: 1024 seconds)
Web Interface
To set the clock maintenance type to NTP:
1.
Click System, then Time.
2.
Select Configure General from the Step list.
3.
Select NTP from the Maintain Type list.
4.
Enable authentication if required.
5.
Click Apply
Figure 13: Configuring NTP
Configuring
Time Servers
Use the System > Time (Configure Time Server) pages to specify the IP address for
NTP/SNTP time servers, or to set the authentication key for NTP time servers.
Specifying SNTP Time Servers
Use the System > Time (Configure Time Server
–
Configure SNTP Server) page to
specify the IP address for up to three SNTP time servers.
Summary of Contents for GEL-5261
Page 14: ...14 Contents Glossary 551 Index 559...
Page 26: ...26 Figures...
Page 30: ...30 Section I Getting Started...
Page 42: ...42 Section II Web Configuration IP Services on page 527...
Page 45: ...Chapter 2 Using the Web Interface NavigatingtheWebBrowserInterface 45 Figure 1 Dashboard...
Page 62: ...62 Chapter 2 Using the Web Interface NavigatingtheWebBrowserInterface...
Page 180: ...Chapter 6 Address Table Settings Issuing MAC Address Traps 180...
Page 208: ...Chapter 8 Congestion Control Storm Control 208 Figure 121 Configuring Storm Control...
Page 228: ...228 Chapter 10 Quality of Service Attaching a Policy Map to a Port...
Page 332: ...Chapter 12 Security Measures ARP Inspection 332 Figure 207 Displaying the ARP Inspection Log...
Page 436: ...Chapter 13 Basic Administration Protocols LBD Configuration 436...
Page 488: ...488 Chapter 14 Multicast Filtering Filtering MLD Query Packets on an Interface...
Page 498: ...Chapter 15 IP Tools Address Resolution Protocol 498...
Page 517: ...517 Chapter 16 IP Configuration Setting the Switch s IP Address IP Version 6 interface...
Page 542: ...540 Section III Appendices...
Page 560: ...Glossary 558...
Page 570: ...568 Index E062017 ST R01...