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ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter1 Product Overview
Summary of Software Features
Resource Management
Resource management provides support for the following features:
Traffic categories:
Constant bit rate (CBR)
Real-time variable bit rate (VBR-RT)
Non-real time variable bit rate (VBR-NRT)
Available bit rate (ABR) + minimum cell rate (MCR)
Unspecified bit rate (UBR) + MCR
Note FC-PCQ-equipped systems only support MCR value 0 for ABR and UBR traffic categories.
Quality of service (QoS) guarantees with traffic policing and intelligent packet discard
Connection admission control (CAC)
Congestion control and traffic pacing
Note Some newer port adapters do not support traffic pacing.
ABR with explicit forward congestion indication (EFCI) and relative rate (RR) marking
Note Relative rate marking of ABR traffic is not supported on the Catalyst 8540 MSR.
Signalling and Routing
The following signalling and routing features are supported:
User-Network Interface (UNI) 3.0, 3.1, and 4.0
Integrated Local Management Interface 4.0
ATM network service access point (NSAP) and E.164 addressing
Interim Interswitch Signalling Protocol (IISP) routing protocol
Single-level and full hierarchical Private Network-Network Interface (PNNI) routing protocol,
including PNNI complex node support
Closed user groups (CUGs) for ATM virtual private networks (VPNs)
ATM signalling and ILMI access lists with support for time of day-based policies
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