Specifications

Contents
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Catalyst 2970 Switch Software Configuration Guide
78-15462-03
Topology View 3-14
CMS Icons 3-15
Where to Go Next 3-15
CHAPTER 4 Assigning the Switch IP Address and Default Gateway 4-1
Understanding the Boot Process 4-1
Assigning Switch Information 4-2
Default Switch Information 4-3
Understanding DHCP-Based Autoconfiguration 4-3
DHCP Client Request Process 4-4
Configuring DHCP-Based Autoconfiguration 4-5
Configuring the DHCP Server 4-5
Configuring the TFTP Server 4-6
Configuring the DNS 4-6
Configuring the Relay Device 4-6
Obtaining Configuration Files 4-7
Example Configuration 4-8
Manually Assigning IP Information 4-10
Checking and Saving the Running Configuration 4-11
Modifying the Startup Configuration 4-12
Default Boot Configuration 4-12
Automatically Downloading a Configuration File 4-13
Specifying the Filename to Read and Write the System Configuration 4-13
Booting Manually 4-13
Booting a Specific Software Image 4-14
Controlling Environment Variables 4-15
Scheduling a Reload of the Software Image 4-17
Configuring a Scheduled Reload 4-17
Displaying Scheduled Reload Information 4-18
CHAPTER 5 Clustering Switches 5-1
Understanding Switch Clusters 5-2
Cluster Command Switch Characteristics 5-3
Standby Cluster Command Switch Characteristics 5-3
Candidate Switch and Cluster Member Switch Characteristics 5-4
Planning a Switch Cluster 5-4
Automatic Discovery of Cluster Candidates and Members 5-5
Discovery Through CDP Hops 5-5
Discovery Through Non-CDP-Capable and Noncluster-Capable Devices 5-6