CBR

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Related to Constant Bit Rate: VBR

CBR

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California bearing ratio

A ratio used in determining the bearing capacity of a foundation; defined as the ratio of the force per unit area required to penetrate a soil mass with a 3 sq in. (19.4 sq cm) circular piston at the rate of 0.05 in. (1.27 mm) per min to the force required for corresponding penetration of a standard crushed-rock base material; usually determined at a penetration of 0.1 in. (2.54 mm).
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

CBR

(1) (Computer-Based Reference) Reference materials accessible by computer rather than print. For example, this encyclopedia.

(2) (Constant Bit Rate) A uniform transmission rate. For example, real-time voice and video traffic requires a CBR. In ATM, CBR guarantees bandwidth for the peak cell rate of the application.

(3) See case-based reasoning.
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References in periodicals archive ?
Estimating channel utilization effectiveness for various traffic, usually breaks down to following types: real-time and non real-time, constant bit rate (CBR) and variable bit rate (VBR).
In this case, the ICP would take the company's IP traffic and pass it through its multiservice network as an ATM permanent virtual circuit, configured for a constant bit rate class of service for smooth, consistent traffic flow to the nearest network access point on the Internet backbone.
The latest incarnation of the adaptation layer, AAL 2, supports both constant bit rate (CBR) and variable bit rate (VBR) statistical multiplexing, and it delivers multiple voice calls simultaneously on a single permanent virtual circuit (PVC).
Ensuring QoS for multiple VCs on a DSL local loop requires that both the central office DSLAS and the IAD at the customer premise support the constant bit rate (CBR) and variable bit rate real-time (VBRrt) ATM classes of service.
When Elite, an international chocolate manufacturer based in Israel, migrated its SMDS (switched multimegabit data service) network to ATM (asynchronous transfer mode), company network managers jokingly referred to its planned CBR voice (constant bit rate) service as Chocolate Bit Rate.

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