1-7
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 1
Product Overview
Summary of Software Features
Resource Management
Resource management provides support for the following features:
•
Traffic categories:
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Constant bit rate (CBR)
–
Real-time variable bit rate (VBR-RT)
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Non-real time variable bit rate (VBR-NRT)
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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
•
ATM anycast