Contents
vii
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
HSRP and Standby Cluster Command Switches 6-11
Virtual IP Addresses 6-12
Other Considerations for Cluster Standby Groups 6-12
Automatic Recovery of Cluster Configuration 6-13
IP Addresses 6-14
Hostnames 6-14
Passwords 6-15
SNMP Community Strings 6-15
Switch Clusters and Switch Stacks 6-16
TACACS+ and RADIUS 6-17
LRE Profiles 6-17
Using the CLI to Manage Switch Clusters 6-18
Catalyst 1900 and Catalyst 2820 CLI Considerations 6-18
Using SNMP to Manage Switch Clusters 6-19
CHAPTER
7 Administering the Switch 7-1
Managing the System Time and Date 7-1
Understanding the System Clock 7-1
Understanding Network Time Protocol 7-2
Configuring NTP 7-3
Default NTP Configuration 7-4
Configuring NTP Authentication 7-4
Configuring NTP Associations 7-5
Configuring NTP Broadcast Service 7-6
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
Understanding DNS 7-15
Default DNS Configuration 7-16
Setting Up DNS 7-16
Displaying the DNS Configuration 7-17
