• Local access rate is the clock speed of the connection to the Frame Relay cloud.

• Committed information rate is the rate in which the Frame Relay switch agrees to transfer data.

• Oversubscription occurs when the sum of the CIRs on all the virtual circuits coming into a device exceeds the access line speed.

• Committed burst is the maximum number of bits that the switch agrees to transfer during any committed rate measurement interval.

• Excess burst is the maximum number of uncommitted bits that the Frame Relay switch will attempt to transfer beyond the CIR for the first time interval only.

© 2004 Cisco Systems, Inc. All rights reserved. bcran v2.1—8-6

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