Distributed Management Framework; Atm Forum Specifications; Atm Traffic Types - Cabletron Systems 9A656-04 Configuration Manual

Chapter 1: Introduction

1.3.1 Distributed Management Framework

Through its distributed management framework, the 9A686-04 allows all the modules in the
chassis to appear as a single entity, managed through a single IP address. The individual
modules are transparent to the network manager and management applications. A fully loaded
SmartSwitch 9500 chassis appears as a single switch, with one IP address.
"
Throughout this manual, it is important to understand that the 9A656-04/9A686-04
NOTE
are part of an overall "system" which is the SmartSwitch 9500. With one or more
9A656-04/9A686-04s installed, the chassis becomes a single switch, with all boards
installed being a part of that single switch, not a separate component.
When this manual refers to the "system" it is referring to a SmartSwitch 9500
chassis with one or more 9A656-04/9A686-04 modules installed.
1.3.2 ATM Forum Specifications
The 9A686-04 is fully compliant with the following ATM Forum specifications:
• Intergrated Local management Interface (ILMI) 4.0 for autoconfiguration.
• UNI v3.0 /3.1 and v4.0 for signalling.
• ATM Forum P-NNI 1.0 and IISP 3.0/3.1/4.0 routing specifications for establishing
connections between ATM switches.
• LANE 1.0 for the management LAN Emulation Client.
• TM 4.0
1.3.3 ATM Traffic Types
The 9A686-04 supports the following standard ATM traffic classes:
• Constant Bit Rate (CBR): ATM traffic class that is guaranteed a fixed amount of bandwidth
while the Virtual Circuit (VC) is active.
• Variable Bit Rate (VBR): ATM traffic class that varies the amount of bandwidth used on the
VC while the VC is active, while maintaining a minimum CBR component.
• Available Bit Rate (ABR): ATM traffic class that allows VCs to use the greatest amount of
bandwidth available on the link at any point in time.
• Unspecified Bit Rate (UBR): ATM traffic class that does not contain any bandwidth
guarantees.
Page 1-4 9A656-04/9A686-04 Configuration Guide