HSTR seminar

Madge Perspective Blueprint for Token Ring in the 21st Century

Madge Perspective Overview 2

Why Token Ring?

Historical choice for transaction processing Very high reliability

E.g. source routing for resilience on backbones

Superior manageability E.g. Management built into every station

High efficiency & scalability Token Ring can operate at over 99% of bandwidth Supports large frames

Compatibility with business applications Future proof

Token priority designed in from outset


Communications Revolution

TransactionProcessing

Client-Server Applications

Intranets & Web-basedCommunications

MultimediaCommunications

1970 1980 1990 2000

Ubiquitous Email

Office Automation

Net

wor

k D

eman

ds


Network Impact of Changes

Smaller sharedsegments

Shared10Mbps

Switched 10Mbpsin backbone

100Mbps in backbone

Switched 10Mbpsto desktop

1Gbps inbackbone

Switched 100Mbps

EthernetMajor technology change every 2 yearsUsers forced to upgrade every time

Big frames

802.1p/q


Token Ring Meeting the Challenge

Token RingToken Ring has consistentlykept pace with changingapplication demands

Smaller sharedsegments

Shared10Mbps


100Mbps in backbone

Switched 10Mbpsto desktop

1Gbps inbackbone

Switched 100Mbps

Big frames

802.1p/q

Shared4Mbps

Shared 16Mbps


Incrementalnext step...


Madge Perspective Key Areas

Scalability Scaling performance in congested areas of the

network e.g. backbone, servers & workgroups

Affordability Driving down the total cost of Token Ring

networking

Applications Enhancing the network with new applications

Integration Integration between Token Ring and Ethernet,

allowing information to be shared freely


Scalability in the Backbone Today’s Alternatives

FDDIFDDI FastEthernet

FastEthernet ATMATM

FaultTolerance

FaultTolerance

ScalabilityScalability

CompatibilityCompatibility

SimplicitySimplicity

PerformancePerformance

EthernetCo-existence

EthernetCo-existence

CostCost

High SpeedToken RingHigh SpeedToken Ring


High Speed Token Ring

Native high speed Token Ring standard Part of the IEEE 802.5 standard

Uses standard Token Ring protocols and frame formats

Uses standard Token Ring cabling

Defined at multiple speeds: 100Mbps, 1Gbps, and beyond

Technical work driven by HSTR Alliance Madge is Vice Chair, IBM is Chair

First demos at N+I in Las Vegas, May ‘98 First products expected summer ‘98


Madge Backbone Strategy

HSTR ATM

Now 1.5Gbps HSTR-ReadyRingswitch Plus &Ringswitch Express

Collage 740 switch &Collage 155 serveradapter

Mid ‘98 2 & 4 port 100Mbps HSTRmodules for Ringswitchfamily

100/16/4 PCI adapter withfull single driver support

Higher density155Mbps ATM switchwith 622Mbps uplink

1999 Super Ringswitch withmulti-Gbps switching core,high density 100Mbps &1Gbps HSTR suport


Scaling Workgroup Performance

TR workgroups based on shared rings 3 step upgrade strategy available

Step 1: Reduce number of users per ring Use micro-segmentation switch Madge product: Ringswitch Express

Step 2: Replace hubs with per port switch Single user per port Madge product: Groupswitch module

for Ringswitch Madge product: Low cost stackable switch

Step 3: 100Mbps HSTR in workgroup

Now!

Now!

Mid ‘98


Scaling Token Ring Performance

100MbpsHSTRserver

connections

Micro-segmentationof existing

workgroups withRingswitch Express

Workgroupswitch

providing32Mbps to

each desktop

Ringswitch Plusin centralbackbone

100Mbps HSTRswitch

connectionsServer farmbuilt aroundGroupSwitch

module


Affordability

Reduce the costof TR desktop connections

Deliver affordable switching solutions to the TR workgroup

MakeHSTR an affordable solution

for the backbone & workgroup

$340

$199

$169

1996 1997 1998

Token RingPCI adapterretail prices

• 5 years of history in Token Ring silicon design with RingRunner chip technology• Currently developing 5th generation silicon to be used in future low cost HSTR products


IPbroadcast

mgtservices

IPswitchingservices

Real-timenetworkservices

Changing Networked Applications

Standard data applications

New video, voice &real-time data applications

Client-server,email, officeautomation,...

Web browserapplications Voice Video Real-time

data

IP data service Real-time IP (RTP, RSVP)

Networksupportservices


Broadcast Management Services

Port 1 Port 2 Port 3 Port 4

Layer 2 switching engine(SR, T, SRT+)

NetBIOS,3270, SNA,IP, IPX,...

Ringswitch Switching Engine

Active Broadcast Control (ABC) engine

ABC is available now on all members of the

Ringswitch family


Multilayer Switching on Ringswitch Plus

Port 1 Port 2 Port 3 Port 4

Layer 2 switching engine(SR, T, SRT+)

Layer 3 switching engine(IP between subnets)

NetBIOS,3270, SNA,IP, IPX,...

IP betweensubnets

Ringswitch Switching Engine

Active Broadcast Control (ABC) engine

MLS Module forRingswitch Plus

in 1H99


QoS on Token Ring

Token Ring was designed with QoS in mind Priority being added to Ethernet with 802.1p/q

Token priority scheme allows traffic to be transmitted at up to 8 different priority levels

Time sensitive traffic gets access to network 1st

All TR hardware supports token priority Ethernet requires whole scale network upgrade!

Madge Token Ring products are QoS-Ready Multiple queues in Ringswitch for handling time

sensitive traffic

Token Ring is ready for voice, video & real-time data applications


Network Integration

Reality is that most Token Ring networks have Ethernet somewhere

Technically difficult to connect Ethernet to TR Address formats completely different Different protocols treat address types differently Token Ring supports much larger frame sizes What to do with source routing information

Best way to connect networks is via router, but It’s expensive There’s a significant performance hit Doesn’t solve non-routable protocols problem


Network Integration with HSTR & IEEE 802.1q

HSTR & 802.1qused to carry

Ethernet frameson backbone

HSTR & 802.1qused to carry

Ethernet frameson backbone

Additional 802.1qdrivers required

in server

Additional 802.1qdrivers required

in server

Fast EthernetInterface on

Smart RingswitchPlus

Fast EthernetInterface on

Smart RingswitchPlus


Summary

Madge Perspective offers a coherent strategy for taking Token Ring into the 21st century

Addresses four major concerns of customers

Scaling network performance Cost of Token Ring networking Support for new applications Integration between Ethernet and Token Ring

Madge’s product strategy is addressing all of these areas

www.madge.com

HSTR seminar

Documents

Transcript of HSTR seminar