Beta Draft Confidential
Overview
CBX 500 Features
CBX 500 Multiservice WAN Switch Hardware Installation Guide
4/5/03
1-3
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Protocol translation features
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Usage-based billing capability
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Congestion management based on Lucent’s VNN packet routing for large network
support, which includes:
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End-to-end delay
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Cell delay variation and cell loss ratio
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Administrative path control
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Virtual private networks (VPNs)
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Sophisticated support for point-to-multipoint connections
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Support for the four ATM service classes:
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Constant bit rate (CBR)
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Variable bit rate-real-time (VBR-RT)
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Variable bit rate-non-real time (VBR-NRT)
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Available bit rate/unspecified bit rate (ABR/UBR)
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ATM flow-control processing support enabling service providers to manage
traffic proportionately on a per-circuit basis (for ABR, UBR, and VBR-NRT
service classes) according to service agreements
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Ten quality-of-service (QoS) classes implemented via hardware buffers
(one CBR, four VBR-RT, four VBR-NRT, and one ABR/UBR)
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SVC support for UNI 3.0, UNI 3.1, and IISP interfaces
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Addressing support for E.164, network service access point (NSAP), data country
code (DCC) ATM end-system addresses, and international code designator (ICD)
ATM end-system addresses
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Encapsulated forward congestion indicator (EFCI) marking and discard
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Interim Link Management Interface (ILMI) and address registration on each port
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Three system-timing modes: recovered, external, or internal
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Four transmit timing and synchronization modes: loop, recovered, external, or
internal
