Chapter 1 The Business Policy Switch 2000 79Using the Business Policy Switch 2000 Version 1.2• The term autonegotiation refers to a standardized protocol (IEEE 802.3u) thatexists between two IEEE 802.3u-capable devices. Autonegotiation allows theswitch to select the best of both speed and duplex modes.Autosensing is used when the attached device is not capable of autonegotiation oris using a form of autonegotiation that is not compatible with the IEEE 802.3uautonegotiation standard. In this case, because it is not possible to sense theduplex mode of the attached device, the Business Policy Switch reverts tohalf-duplex mode.When autonegotiation-capable devices are attached to the Business Policy Switch,the ports negotiate down from 100 Mb/s speed and full-duplex mode until theattached device acknowledges a supported speed and duplex mode.For more information about autosensing and autonegotiation modes, seeChapter 6, “Troubleshooting,” on page 327.For information on configuring autonegoitation using the CI menus, refer toChapter 3. To configure this feature using the Web-based management system,refer to Using Web-based Management for the Business Policy Switch 2000Software Version 1.2. To use Device Manager (DM) to configure this feature, referto Reference for the Business Policy Switch 2000 Management Software Version1.2. And, to configure this feature using CLI commands, refer to Reference for theBusiness Policy Switch 2000 Command Line Interface Software Version 1.2. book.BootP automatic IP configuration/MAC addressBeginning with software version 1.2, you can retrieve the ASCII configurationfile name and configuration server address using BootP.With software 1.1 and a stack consisting only of BPS 2000 switches (Pure BPS2000 Stack mode), you can perform BootP using the MAC address of the baseunit.The Business Policy Switch has a unique 48-bit hardware address, or MACaddress, that is printed on a label on the back panel. You use this MAC addresswhen you configure the network BootP server to recognize the Business PolicySwitch BootP requests. A properly configured BootP server enables the switch toautomatically learn its assigned IP address, subnet mask and the IP address of thedefault router (default gateway).
