Beta Draft Confidential
1-21/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Overview
ATM FCP
ATM FCP
Chapter 5 provides information about the CBX 500 ATM Flow Control Processor
(FCP), which supports ATM traffic management through binary, hop-by-hop,
closed-loop flow control algorithms that shift network congestion to the edge of the
network. In addition, the CBX 500 ATM FCP uses several per-virtual circuit (VC)
cell/packet queuing and discarding mechanisms for additional network congestion
control.
Based on the ATM Forum’s Traffic Management Specification, Version 4.0, the ATM
FCP delivers a fair, deterministic service for bursty ATM traffic, including:
• Dynamically adjusting the allowed cell rate (ACR) in response to resource
management (RM) cell feedback
• Reducing congestion in the network by adjusting the data rate at which a VC
sends cells fair resource allocation based on the minimum cell rate (MCR)
• Per VC-queuing with early packet discard/partial packet discard (EPD/PPD)
capability.
Chapter 6 provides step-by-step instructions for configuring the ATM FCP as well as
answers to frequently-asked questions (FAQs) about working with the ATM FCP.
ATM Trunks
Chapter 7 describes how to configure the following types of ATM trunks:
• ATM Direct Trunks
• ATM OPTimum (Cell) Trunks
• ATM OPTimum Frame Trunks (B-STDX 9000 only)
For information on each of these trunk types, review the trunk logical port descriptions
in Chapter 2 and Chapter 4. Chapter 7 also describes how to configure external trunks
and provides instructions for using trunk backup and Fast APS.
Note – Contact a qualified Lucent organization for network design validation before
enabling the FCP.
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