10-1
Chapter 10: Setting the System Clock
Simple Network Time Protocol (SNTP) allows the switch to set its internal clock
based on periodic updates from a time server (SNTP or NTP). Maintaining an
accurate time on the switch enables the system log to record meaningful dates and
times for event entries. You can also manually set the clock using the CLI. (See
“calendar set” on page 39-5.) If the clock is not set, the switch will only record the
time from the factory default set at the last bootup.
When the SNTP client is enabled, the switch periodically sends a request for a time
update to a configured time server. You can configure up to three time server IP
addresses. The switch will attempt to poll each server in the configured sequence.
Configuring SNTP
You can configure the switch to send time synchronization requests to time servers.
Command Attributes
•
SNTP Client
– Configures the switch to operate as an SNTP client. This requires
at least one time server to be specified in the SNTP Server field. (Default: Disabled)
•
SNTP Poll Interval
– Sets the interval between sending requests for a time update
from a time server. (Range: 16-16384 seconds; Default: 16 seconds)
•
SNTP Server
–
Sets the IP address for up to three time servers. The switch
attempts to update the time from the first server, if this fails it attempts an update
from the next server in the sequence.
Web
– Select SNTP, Configuration. Modify any of the required parameters, and click
Apply.
Figure 10-1 SNTP Configuration
Summary of Contents for Direk Tronik 24/48-Port
Page 2: ......
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Page 22: ...xxii Tables...
Page 26: ...xxvi Figures...
Page 28: ...Getting Started...
Page 50: ...Initial Configuration 2 14 2...
Page 52: ...Switch Management Configuring Domain Name Service 29 1 Switch Clustering 30 1...
Page 68: ...Basic System Settings 4 8 4...
Page 118: ...Simple Network Management Protocol 11 18 11...
Page 142: ...Configuring 802 1X Port Authentication 14 8 14...
Page 154: ...Access Control Lists 15 12 15...
Page 232: ...Configuring Protocol Based VLANs 25 4 25...
Page 252: ...Quality of Service 27 8 27...
Page 282: ...Using the Command Line Interface 31 10 31...
Page 290: ...General Commands 33 6 33...
Page 300: ...System Management Commands 34 10 34...
Page 308: ...File Management Commands 35 8 35...
Page 326: ...Event Logging Commands 37 8 37...
Page 336: ...Time Commands 39 6 39...
Page 406: ...Access Control List Commands 44 18 44...
Page 418: ...Interface Commands 45 12 45...
Page 432: ...Broadcast Storm Control Commands 47 2 47...
Page 436: ...Rate Limit Commands 49 2 49...
Page 478: ...VLAN Commands 52 18 52...
Page 508: ...Quality of Service Commands 56 10 56...
Page 518: ...Multicast Filtering Commands 57 10 57...
Page 532: ...IPv4 Interface Commands 59 6 59...
Page 560: ...IPv6 Interface Commands 60 28 60...
Page 566: ...Switch Cluster Commands 61 6 61...
Page 568: ...Appendices...
Page 582: ...Glossary Glossary 8...
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