Cisco WS-C3548-XL-EN Installation Guide - Page 87

Chapter 2 Installing and Starting Up the Switch Default Configuration Settings Using BOOTP You can use BOOTP to assign IP information to a Catalyst 3500 XL switch. A database with a list of physical MAC addresses and corresponding IP addresses must be set up on the BOOTP server. Other optional information, such as the corresponding subnet masks and default gateway addresses, can also be stored in the database. The switch must be able to access the BOOTP server through one of its ports. If the switch starts and no IP address has been assigned, it transmits a BOOTP broadcast request to all of its connected ports, requesting a mapping for its physical MAC address. A valid response includes the IP address, which is mandatory, and the subnet mask and the default gateway, which are optional. The reception of a valid BOOTP response immediately activates the rest of the system protocol suite, without requiring a system reset. The running configuration is set, but the saved configuration in Flash memory is not automatically updated. To save the IP information, log in to the CLI, and enter the write memory command. The IP information is then preserved, and the switch does not issue BOOTP messages the next time it resets. Default Configuration Settings After you assign IP information, the switch can operate with the default configuration settings shown in Table 2-1. 78-6456-04 Catalyst 3500 Series XL Hardware Installation Guide 2-29