Manuals / Brands / Computer Equipment / Switch / Madge Networks / Computer Equipment / Switch

Madge Networks Token Ring Switch What is Desktop Switching ?

1 58

Download 58 pages, 1.13 Mb

Smart DeskStream Technical Presentation 3

What is Desktop Switching ?

Conventional Shared Token Ring

nUsers share the Token Ring

network

nOften up to 80 users share 16Mbps

Fully Switched Token Ring

nEach user has their own dedicated Token

Ring !

nNo need to share 16Mbps with other

users

nConnections can be Full Duplex (32Mbps)

Shared User Ring

CAU/LAM or

Chassis

Switched ring

Desktop

Switch

The CAU/LAM is the ring. Users share the bandwidth available on

that ring - typically 16Mbps these days.

A ring can support over 250 users in theory, but in practice this

number is better limited to around 80. Even at this reduced number,

power users may suffer from ‘bandwidth starvation’! The DeskStream

allows them to each have a full 16Mbps since each port is its own

ring. If the adapter driver will support it, the connection can be full

duplex DTR which allows a maximum throughput of 32Mbps.

Contents

Main Objectives nAt the end of this session you will be able to: What is Desktop Switching ? Conventional Shared Token Ring Fully Switched Token Ring Page Page into existing networks Hub Replacement Powerful, Flexible Connectivity Resilience 2 x 100Mbps Powerful, Flexible Connectivity Resilience and Performance Smart DeskStream Family Summary Page Page Page concentrator (on Ringswitches) ports Ports Ports - 2 Ports - 3 Ports - LEDs Status LEDs Page Stacking Module nBottom DeskStream nSingle IP address per stack nSingle download image, Stacking Module - 2 swapped Stacking Module - 3 Stack 1 Stack 2 Stacking Module - 4 Stacking Module - 5 Single Stack Page Uplink Connectivity TR Fiber Module - 1 TR Fiber Module - 2 TR Fiber Module - 3 High Speed Token Ring HSTR Copper and Fiber Modules - 1 HSTR Connectivity HSTR Copper and Fiber Modules - 2 HSTR Connectivity HSTR Fiber Module Page Smart DeskStream Manager Command Line Interface (CLI) Network Management Software Downloads files Management Features Easy to configure options Simplified support Smart DeskStream Manager Advanced Functionality Telnet and serial interface menu is easy: Smart DeskStream Manager Command Line Interface Diagnostic Downloads Diagnostic Features Page Objectives Page Annex K Frame Forwarding using CRF Backbone Introducing multiple uplinks - 1 Ring Number 101 A Introducing multiple uplinks - 2 Bridging using BRF 109107 108 BRF Port Interface (SRB) Virtual port Bridging using BRF CRF Port Interface (Local) Page Setting up the BRF interfaces Page Page Combining CRF and BRF functions CRF Summary CRF will attempt to learn the ring number from the RIF in passing frames as will the BRF. Introducing multiple uplinks - 3 Active 101 Active Ring Number 102 Page IEEE Spanning Tree Support Ring Number 101 IEEE SPT Ring Number 102 CRF