CHAPTER
3-1
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
OL-8915-03
3
Assigning the Switch IP Address and Default
Gateway
This chapter describes how to create the initial switch configuration (for example, assigning the IP
address and default gateway information) by using a variety of automatic and manual methods. It also
describes how to modify the switch startup configuration.
Note For complete syntax and usage information for the commands used in this chapter, see the command
reference for this release and the Cisco IOS IP Command Reference, Volume 1 of 3: Addressing and
Services from the Cisco.com page under Documentation > Cisco IOS Software > 12.2 Mainline >
Command References.
This chapter consists of these sections:
• Understanding the Bootup Process, page 3-1
• Assigning Switch Information, page 3-2
• Checking and Saving the Running Configuration, page 3-15
• Modifying the Startup Configuration, page 3-17
• Scheduling a Reload of the Software Image, page 3-21
Note Information in this chapter about configuring IP addresses and DHCP is specific to IP Version 4 (IPv4).
Understanding the Bootup Process
To start your switch, you need to follow the procedures in the getting started guide or the hardware
installation guide for installing the switch and setting up the initial switch configuration (IP address,
subnet mask, default gateway, secret and Telnet passwords, and so forth).
The normal bootup process involves the operation of the bootloader software, which performs these
activities:
• Performs low-level CPU initialization. It initializes the CPU registers, which control where physical
memory is mapped, its quantity, its speed, and so forth.
• Performs power-on self-test (POST) for the CPU subsystem. It tests the CPU DRAM and the portion
of the flash device that makes up the flash file system.
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