Contents
vii
Catalyst 3750 Switch Software Configuration Guide
78-16180-02
SNMP Community Strings 6-14
Switch Clusters and Switch Stacks 6-14
TACACS+ and RADIUS 6-16
Access Modes in CMS 6-16
LRE Profiles 6-17
Availability of Switch-Specific Features in Switch Clusters 6-17
Creating a Switch Cluster 6-17
Enabling a Cluster Command Switch 6-17
Adding Cluster Member Switches 6-18
Creating a Cluster Standby Group 6-20
Verifying a Switch Cluster 6-22
Using the CLI to Manage Switch Clusters 6-23
Catalyst 1900 and Catalyst 2820 CLI Considerations 6-23
Using SNMP to Manage Switch Clusters 6-24
CHAPTER
7 Administering the Switch 7-1
Managing the System Time and Date 7-1
Understanding the System Clock 7-2
Understanding Network Time Protocol 7-2
Configuring NTP 7-4
Default NTP Configuration 7-4
Configuring NTP Authentication 7-5
Configuring NTP Associations 7-6
Configuring NTP Broadcast Service 7-7
Configuring NTP Access Restrictions 7-8
Configuring the Source IP Address for NTP Packets 7-10
Displaying the NTP Configuration 7-11
Configuring Time and Date Manually 7-11
Setting the System Clock 7-11
Displaying the Time and Date Configuration 7-12
Configuring the Time Zone 7-12
Configuring Summer Time (Daylight Saving Time) 7-13
Configuring a System Name and Prompt 7-14
Default System Name and Prompt Configuration 7-15
Configuring a System Name 7-15
Configuring a System Prompt 7-16
Understanding DNS 7-16
Default DNS Configuration 7-17
Setting Up DNS 7-17