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Tech Terms, 3rd Edition by Jeff Rutenbeck

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U

UBR (Unspecified Bit Rate)

Level: 3

Definition: A type of traffic on an ATM network that is not considered time critical, UBR data is transferred with an unspecified bit rate using whatever bandwidth is available at any given time. In this sense, UBR transmissions are similar to IP service. UBR traffic is given a “best effort” priority in an ATM network. (See also ABR, CBR, and VBR.)

UDDI (Universal Description, Discovery, and Integration)

Level: 3

Definition: UDDI is an open framework for describing or listing services on the Internet. Based on the W3C’s XML standard and closely integrated with SOAP, UDDI provides three types of listings: White Pages, which include address, contact, and other known identifiers; Yellow Pages, which include ...

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