Glossary of TermsUDS-10 User Guide 11-111. Glossary of TermsAddress spaceA linear array of locations that a thread can access. Simple processors have only one, and theseprocessors are referred to as `linear' addressing.AutoIPAutoIP is an alternative to DHCP that allows hosts to automatically obtain an IP address in smallernetworks that may not have a DHCP server. A range of IP addresses (from 169.254.0.1 to169.254.255.254) has been explicitly reserved for AutoIP-enabled devices. The range of AutoIPaddresses is not to be used over the Internet.Auto-Negotiate:Clause 28 of the IEEE 802.3u standard specifies a MAC sublayer for the identification of the speedand duplex mode of connection being supported by a device. Support of this feature is optional forindividual vendors.Auto-sense:Ability of a 10/100 Ethernet device to interpret the speed or duplex mode of the attached device and toadjust to that rate. Official term is Auto-Negotiation in Clause 28 of the IEEE 802.3u standard.AUI:Attachment Unit Interface. A 15-pin shielded, twisted pair Ethernet cable used (optionally) to connectbetween network devices and a MAU.Autobaud:Automatic determination and matching of transmission speed.Backbone:The main cable in a network.Bandwidth on Demand:Feature that allows a remote access device to initiate a second connection to a particular site to increasethe amount of data transferred to that site to increase the desired threshold. The network managerconfiguring the remote access server will specify a number of bits or a percentage of connectionbandwidth threshold which will trigger the secondary connection. Multilink PPP is an emergingstandard to allow this feature to be interoperable, but right now the only way to ensure correctoperation is to use devices on both end from the same vendor.
