Managing The System Time And Date - Cisco Catalyst 3550 series Software Configuration Manual

Administering the Switch
This chapter describes how to perform one-time operations to administer your Catalyst 3550 switch.
This chapter consists of these sections:
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Managing the System Time and Date

You can manage the system time and date on your switch using automatic configuration, such as the
Network Time Protocol (NTP), or manual configuration methods.
For complete syntax and usage information for the commands used in this section, refer to the Cisco IOS
Note
Configuration Fundamentals Command Reference for Cisco IOS Release 12.1.
This section contains this configuration information:
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Understanding the System Clock
The heart of the time service is the system clock. This clock runs from the moment the system starts up
and keeps track of the date and time.
The system clock can then be set from these sources:
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78-11194-09
Managing the System Time and Date, page 7-1
Configuring a System Name and Prompt, page 7-15
Creating a Banner, page 7-18
Managing the MAC Address Table, page 7-20
Optimizing System Resources for User-Selected Features, page 7-27
Understanding the System Clock, page 7-1
Understanding Network Time Protocol, page 7-2
Configuring NTP, page 7-3
Configuring Time and Date Manually, page 7-10
Network Time Protocol
Manual configuration
C H A P T E R
Catalyst 3550 Multilayer Switch Software Configuration Guide
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7-1