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High Speed Token Ringfor the 21st Century
Seminar Series
HSTR Seminar Series 2
HSTR Seminar Series 3
Agenda
Madge Networks in Token Ring The History and Future of Token Ring The HSTR Alliance HSTR Explained Token Ring for the 21st Century HSTR in Action
HSTR Seminar Series 4
Madge Networks N.V.
Founded in 1986 by Robert Madge Quoted on NASDAQ (NASDAQ:MADGF) Madge Networks
Wexham Springs - UK Eatontown - USA Sales offices around the globe
Lannet Tel Aviv - Israel
Customer support without limits Financial success based on ethical standards
HSTR Seminar Series 5
Token Ring
Video Networking
ISDN Carrier
VA
Rs,
Res
elle
rs,
OE
Ms
Str
ateg
ic P
artn
ers
etc.
CustomersBusiness Units
Token Ring
Video Networking
ISDN Carrier
Madge Networks Business Model
HSTR Seminar Series 6
Token Ring Market Overview
$2.2bn world-wide market Large, stable market
‘98 market size will be over $2bn 4.6m adapters sold in ‘97
Huge, well defined user base Over 20m desktops now run on Token Ring
Significant growth expected in TR switching Dell’Oro forecasts 1.3m switch ports by 2000
Major Token Ring vendors still investing heavily in Token Ring technology
HSTR Seminar Series 7
Madge’s Position in Token Ring
Number 1 in Backbone Switching in Europe Number 2 in Adapters World-wide Number 3 in Stackable Shared hubs Very strong brand name in Token Ring Excellent channel partners Own core Token Ring technology Continue to drive key Token Ring standards
TR LAN Emulation, High Speed Token Ring
Over 12 years experience in this market
HSTR Seminar Series 8
Madge’s Continued Leadership
First vendor to launch a cut-through Token Ring switch
First to market with PCI, EISA, MC32 & CardBus adapters
First vendor to break the $200 price point for Token Ring adapters
First major Token Ring vendor after IBM to deliver its own Token Ring chipset
First vendor to deliver standards-based Token Ring LAN Emulation
HSTR Seminar Series 9
High Speed Token RingThe future for Token Ring Networks
IDC Research ‘97: >46% Token Ring users voted for a higher speed
Token Ring as their preferred backbone
HSTR has both press and user attention Growing interest since the launch in August 97
HSTR is the future for Token Ring Preserves and extends Token Ring strengths
The History and Future of Token Ring
The Madge Perspective
HSTR Seminar Series 12
Why Token Ring?
Historical choice for migration of transaction processing applications
Very high reliability Automatic fault detection & recovery Source routing for maximum resilience on
backbones
Manageability Highly intelligent MAC Management built into every station
HSTR Seminar Series 13
Why Token Ring?
Efficiency & scalability Highly deterministic Token Ring can operate at over 99% of available
bandwidth Supports large frames
Compatibility With existing applications e.g. SNA
Future proof Token priority designed in from outset Easily scaled from 4 to 16Mbps in early ‘90s
HSTR Seminar Series 14
Communications Revolution
TransactionProcessing
Client-Server Applications
Intranets & Web-basedCommunications
MultimediaCommunications
1970 1980 1990 2000
Ubiquitous Email
Office Automation
Net
wor
k D
eman
ds
HSTR Seminar Series 15
Network Impact of Changes
Smaller sharedsegmentsShared
10Mbps
Switched 10Mbpsin backbone
100Mbps in backbone
Switched 10Mbpsto desktop
1Gbps inbackbone
Switched100Mbps
EthernetMajor technology change every 2 yearsUsers forced to upgrade every time
HSTR Seminar Series 16
Token Ring Meeting the Challenge
Smaller sharedsegmentsShared
10Mbps
Switched 10Mbpsin backbone
100Mbps in backbone
Switched 10Mbpsto desktop
1Gbps inbackbone
Switched100Mbps
Token Ring
Shared4Mbps
Shared 16Mbps
Switched 16Mbpsin backbone
Token Ring has consistentlybeen able to meet demandsplaced on it by new applications
HSTR Seminar Series 17
Challenges of the New Millennium
Ubiquity of the desktop PC in corporations Microsoft dominance at the desktop & server Wide-scale deployment of web-based
applications in corporate Intranets IP becoming the dominant network protocol
New desktop multimedia applications enrich business communications
Video starting to emerge as a real business tool
Rising network traffic Greater inter-connection between networks
HSTR Seminar Series 18
Problems to be Addressed
Scalability Scaling network 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
HSTR Seminar Series 19
Token Ring: Likes and Concerns
Fault tolerance Manageability Compatibility with business applications
Congested inter-switch links Inadequate server I/O speeds
. . . and in the future
Desktop bandwidth for power users Support for multi-services
HSTR Seminar Series 20
For existing Token Ring
installations, incremental
upgrades will almost always be
easier to implement and cost less
than attempting a change of
network technology at every
desktop
For existing Token Ring
installations, incremental
upgrades will almost always be
easier to implement and cost less
than attempting a change of
network technology at every
desktop
The ROPE Fallacy
Rip
Out Token Ring
Put in
Ethernet
HSTR Seminar Series 21
Token Ring Performance
16 + 16 100
Switch
DTR is the same or faster than 100BaseT for server backups
Switch
TR Workstations run significantly faster into TR based servers compared with those 100BaseT based
DTRDTR
HSTR Seminar Series 22
Backbone Alternatives
FDDIFDDI FastEthernet
FastEthernet ATMATM
FaultTolerance
FaultTolerance
ScalabilityScalability
CompatibilityCompatibility
SimplicitySimplicity
PerformancePerformance
EthernetCo-existence
EthernetCo-existence
CostCost
HSTR Seminar Series 23
ATM in the Backbone
Used by many companies around the world Many benefits:
Seamless connectivity if ATM used in the WAN Great for consolidating PBX voice traffic and
LAN traffic on same infrastructure Guaranteed QoS Currently only way to consolidate TR & Ethernet
traffic on same wire
But large proportion of Token Ring users looking for a simple, frame-based backbone solution
HSTR Seminar Series 24
What TR Users Need Tomorrow
High SpeedLAN Backbone
High speedserver
connections
High speedinter-switchconnections
Power Userdesktop
connections
AccommodateEthernet
workgroups
High Speed Token Ring Alliance
HSTR Seminar Series 26
Who is the HSTRA
The industry’s leading Token Ring vendors joining forces to ensure rapid delivery of high-speed Token Ring to customers.
Madge Networks 3Com Olicom Bay Networks UNH Interoperability Lab IBM Xylan
HSTR Seminar Series 27
High-Speed Token Ring Alliance Roadmap
March - European Press Summit, NetEvents April - HSTR Technical Tolly Town Meetings May - InterOp, Multiple vendor HSTR
technology demonstrations July - UNH Interoperability Testing July - Progress Standards to Sponsor level
ballot Fall 98 Product introductions
HSTR Seminar Series 28
HSTR Alliance
HSTR Seminar Series 29
www.hstra.com
More Information on HSTRA
High Speed Token Ring Explained
HSTR Seminar Series 32
What is High Speed Token Ring?
Initially defined for speeds of 100 Mbps Scaleable to 1 Gbps and beyond Part of the IEEE 802.5 Token Ring standard
Native High Speed Token Ring standard Not based on proprietary technology Makes use of existing cabling systems
Defined for Dedicated Token Ring initially Important in backbone application Shared HSTR being evaluated as a desktop
technology
HSTR Seminar Series 33
Targets for the IEEE
Development of standards by Q4 98 <1 year - conception to ratification
Use current Token Ring cabling STP - Type 1 UTP - Cat 5
Reusing tried & test technology 100 Mbps Phy from 100BaseT MAC developed from DTR
HSTR Seminar Series 34
IEEE 802.5 Standards schedule
Aggressive standards development schedule in the IEEE 802.5 Token Ring Working Group:
Straw-man circulated for comment 21st Nov. 97Straw-man 2.0 circulated for comment 28th Jan. 98Committee ballot to approve standard 27th Mar. 98Confirmation ballot following ballot resolution Jun. 98Forward to LMSC and ISO for ballot 9th July 98
HSTR Seminar Series 35
HSTR End Stations
16/4 - Manchester Encoding
Token Ring ISO Layer
PHY Physical
Data Link
Network
MAC
Interface
Protocol
LLC - I & II
Driver - NDIS/ODI
TCP/IP, IPX/SPX, NetBEUI
100 Mbps - 4b/5b (as used in Fast Ethernet & FDDI MLT-3)
16/4100
Token Ring Network
HSTR Seminar Series 36
Why not ISL?
Proprietary Single choice for backbone equipment Not compatible with Fast Ethernet switches
Inefficient Encapsulation forces more frame processing on
PCs Adapters have no ability to process frames
HSTR Seminar Series 37
Why is HSTR a dedicated link?
Switch port prices are eroding quickly Hub port prices are stable Price parity by mid 1999
Easier upgrade path for users One node at a time
The early need Servers & inter-switch links
Shared standard More complex New hubs will be needed
HSTR Seminar Series 38
What cabling types and standards will HSTR use?
Considerations Higher speed - more susceptible to emissions Dedicated links - active re-timing at each station Token Ring’s unique lobe test - reassuring cable
quality
STP - type 1 100m Large older installations Better immunity - shielded cable
UTP - Cat 5 100m Newer installations Certainly been adequate for Fast Ethernet
HSTR Seminar Series 39
What cabling types and standards will HSTR use?
Fibre
Standard still needs some definition
Cannot use 802.5j
Physical specification is IEEE 802.3u
re-use of FDDI signalling
different laser wavelengths to 16/4Token Ring
Fibre runs of up to 2 Km
HSTR Seminar Series 40
What VLAN standards will be supported on HSTR?
VLANs - Virtual LANs Definition:
Stations grouped together as if on the same LAN
Each group has unique identifying Tag Standardised under 802.1Q
VLANs to support Ethernet Tagged Ethernet frames can travel over HSTR HSTR can be used as common backbone for
mixed Ethernet & Token Ring networks
HSTR Seminar Series 41
What about HSTR Network Management?
HSTR will support the same management functions that Token Ring supports today
Error reporting, link error analysis, force remove, adapter status removal
RMON support extended to HSTR HSTR switch ports can be managed in the same
way 4/16Mbps ports
Seamless network management with application support
HSTR Seminar Series 42
How much will HSTR cost?
First products will be highly integrated
Adaptation of existing Token Ring silicon solutions
Cost effective solutions in first products
Initial target: 25% above traditional Token Ring
Expected fast price reduction as components become even more integrated
HSTR Seminar Series 43
HSTR Delivers
FaultTolerance
FaultTolerance
ScalabilityScalability
CompatibilityCompatibility
SimplicitySimplicity
PerformancePerformance
EthernetCo-existence
EthernetCo-existence
SR support enables multiple redundant paths, and duplicate MAC addressesSR support enables multiple redundant paths, and duplicate MAC addresses
Scales to 100 Mbps and 1 GbpsScales to 100 Mbps and 1 Gbps
Uses native Token Ring frame formats and packet sizesUses native Token Ring frame formats and packet sizes
No new protocols to learnNo new protocols to learn
Native TR: Good client server performance4.5K bytes frame size: faster backupsNative TR: Good client server performance4.5K bytes frame size: faster backups
Supports 802.1Q VLAN tagging enabling Ethernet packet transport over HSTRSupports 802.1Q VLAN tagging enabling Ethernet packet transport over HSTR
High SpeedToken RingHigh SpeedToken Ring
CostCost Leverages low cost high volume components for best valueLeverages low cost high volume components for best value
HSTR Seminar Series 44
HSTR: Key Milestones
Alliance launch Oct. 97 NetWorld & Interop, Atlanta
Madge hosts Alliance meeting in UK Oct. 97
Technology demonstrations First product: CeBit, Germany Mar. 98 Live demonstrations: N& I, Las Vegas May 98
Networks 98,UK Jun. 98 Multi-vendor interoperability testing Jul. 98
University of New Hampshire
First products Sep. 98
HSTR Seminar Series 45
Where will HSTR be used?
Initially as a backbone technology Server to switch connections Switch to switch connections Workgroup switch to backbone switch
connection
Later as a workgroup technology Workgroup switching will be deployed first to
resolve performance bottlenecks HSTR in the workgroup will further enhance
workgroup performance Not expected to occur for 2-5 years
HSTR Seminar Series 46
HSTR networking example
4/16/100 MbpsServer NICs
4/16/100 MbpsServer NICs
HSTR used forinter-switch
links
HSTR used forinter-switch
links
HSTR Power-usersconnected into
Ringswitch
HSTR Power-usersconnected into
Ringswitch
HSTR up-linkfor workgroupsHSTR up-link
for workgroups
4/16/100 MbpsNICs
4/16/100 MbpsNICs
HSTR Seminar Series 47
Beyond 100Mbps Token Ring
Standards provision for Gigabit Token Ring:
Same MAC
Re-use of Fiber Channel PHY (Gbps Ethernet)
Ratified standard 9-12month after 100Mbps
Target Applications
Initially deployed for building and campus inter-switch links
Technology demonstrations: 1999
HSTR Seminar Series 48
Token Ring is strategic once more
HSTR is targeted at TR user needs Preserves and enhances existing investments Alternatives are either high latency, expensive, a
“fork lift” upgrade or all three
HSTR & Token Ring: real benefits Performance & efficiency Preserves Token Ring resilience and service
quality advantages Supports existing Token Ring cabling and
applications Token Ring remains the strategic choice
HSTR Seminar Series 49
Hubs&
Switches
Hubs&
Switches
BackboneSwitches
ServerAdapters
ATM Switches&
High Speed Token Ring
DesktopAdapters
Campus Backbone
Token RingBackbone
WorkgroupDesktop
Madge strategy for HSTR & Token Ring: A complete solution
HSTR Seminar Series 50
Complete Token Ring solutionsThe issues
Maintaining business mission critical network availability
Resilient network configurations Proactive network management Making it easy to handle moves and changes
Properly dealing with broadcast traffic An architecture for performance switched networks
Compatibility with existing networks Adapters: one driver standard for all applications Infrastructure: support of network cabling and existing
LAN technology
Easy , incremental scaling options
HSTR Seminar Series 51
Backbone switchingMadge Smart Ringswitch Plus
1.5 Gbps capacity
6 slots for switching modules
Up to 36 full duplex TR ports
Unique software functionality
ATM and FDDI uplinks
September 98:
4 port copper HSTR
2 port fibre HSTR
Smart Ringswitch Plus
HSTR Seminar Series 52
Small Backbone/segment switchingMadge Smart Ringswitch Express
1.5 Gbps capacity
Easy to use switching solution
Advanced software functionality
HSTR ready 4 port copper HSTR 2 port fibre HSTR
Smart Ringswitch Express
HSTR Seminar Series 53
Capture
Matrix
Host Top N
History
Ringswitch FamilyNetwork Management
Statistics
Token Ring
Alarm
Event
Host
Filter
Smart Ringswitch family The only Token Ring
switches to fully support RMON
Extends to HSTR too!
Monitoring
Warnings
Who’s talking
Diagnostics
HSTR Seminar Series 54
Ringswitch FamilySolution strength as switched backbone
Layer 3 Filtering
Manages protocol specific broadcasts
Active Broadcast Control
Reduces broadcast traffic by up to 90%!
Important for an extended switched infrastructure
Optimum speed & ease of administration
HSTR Seminar Series 55
Ringswitch Family Workgroup Switching
Low cost switch access for servers and power users
20 ports per module, up to 120 users per switch
100Mbps HSTR links into backbone
HSTR Seminar Series 56
Ringswitch FamilyWidest range of TR and high speed options
UTP, STP and Fiber Token Ring support
Wide choice of high speed options
with 1.5G switching capacity to support higher speeds
GroupSwitch
8-Port TR
4-Port TR
4-Port TR Fiber
ATM MMF
FDDI
HSTR
Token Ring
High speed
HSTR Seminar Series 57
Adapter Strategy
Time to market important driving factor for first HSTR adapters
Madge’s long-term strategy is to make 100Mbps HSTR an affordable desktop technology
Will allow 4/16/100 adapters to be deployed at 16Mbps, ready for upgrade to 100Mbps
HSTR Seminar Series 58
Adapter Family
Smart 16/4 Ringnode familyPerformance leading adapter family
Unique single driver across all adapters - including ISA, PCI, PCMCIA and CardBus
Widest range of environments supported
4th generation Madge TR silicon Includes support for HSTR
Very stable silicon & MAC base
HSTR Seminar Series 59
New HSTR Adapter
Smart 100/16/4 HSTR PCI adapter Supports same driver as 16/4 cards
Very easy upgrade to 100Mbps
Auto-sensingJust plug adapter into HSTR port
Designed for servers & power-users
HSTR Seminar Series 60
Silicon Roadmap
5th generation HSTR silicon being developed
for desktop applications
Significantly reduce the price premium for
100Mbps support
Enable customers to widely deploy HSTR-
enabled adapters throughout network ready
for upgrade later
A Perspective on Token Ring for the 21st Century
HSTR Seminar Series 63
Quality of Service
Madge believes that voice, video and data convergence is inevitable
Quality of Service in the LAN is a key requirement
Needed for desktop video and multimedia conferencing, mission-critical data apps
HSTR Seminar Series 64
QoS on Token Ring
Token Ring was designed with QoS in mind from the outset
Priority is only now being added to Ethernet: requires significant hardware changes
Token priority scheme allows traffic to be transmitted at up to 8 different priority levels
High priority, time sensitive traffic gets access to network first
All TR hardware supports token priority Full end-to-end priority requires additional
functionality in switches and end-stations
HSTR Seminar Series 65
Token Ring’s Built-inPriority Scheme
Stationcurrently
transmitting
Stationcurrently
transmitting
Stationswaiting totransmit
Stationswaiting totransmit
Station with higherpriority packet can
grab token next
Station with higherpriority packet can
grab token next
Token priority provides low delay access to shared ring
Supports good quality voice and video
HSTR Seminar Series 66
Videoconferencing over Shared Token Ring
Assume 30 users per ring
Assume worst case 20% of users active with videoconferencing
Assume 350 kbps bandwidth/session
Total bandwidth used:
20% x 30 x 350 kbps = 2.1 Mbps
This is fine for a 16 Mbps ring!
HSTR Seminar Series 67
End station QoS software
IPprotocol
stack
IPprotocol
stack
Adapter carddriver
Adapter carddriver
NDIS 5
Datapackets
Videopackets
RSVPmessages
Priority= 0
Priority= 6
Applications will use RSVP messages to request QoS
All packets go into the same IP stack
High priority assigned to packets with QoS
HSTR Seminar Series 68
QoS on Token Ring
Network Interface
NDIS
IP Stack
VideoApp
Port 1 Port 2
Switching Engine
High PriorityQueue
Low PriorityQueue
DataApp
End station
Switch
HSTR Seminar Series 69
QoS on Token Ring
Network Interface
NDIS
IP Stack
VideoApp
Port 1 Port 2
Switching Engine
High PriorityQueue
Low PriorityQueue
DataApp
End station
Switch
P0 P0
HSTR Seminar Series 70
QoS on Token Ring
Network Interface
NDIS
IP Stack
VideoApp
Port 1 Port 2
Switching Engine
High PriorityQueue
Low PriorityQueue
DataApp
End station
Switch
P0 P4
P6 P6
HSTR Seminar Series 71
TR-HSTR Solution for QoS
TRSwitch
TRSwitch
TRSwitch
TRSwitch
Support formultiple
priority queues
Support formultiple
priority queues
Multiple priority queues in each TR switch Expedited delivery of high priority traffic Adequate QoS for majority applications
HSTR Seminar Series 72
Madge TR-HSTR Solution
All 802.5 standard TR equipment supports packet priority
Packet priority is preserved over HSTR
Smart Ringswitch Plus hardware supports multiple internal queues
High priority packets get precedence at output ports
HSTR Seminar Series 73
When would you use ATM with TR?
Urgent need for greater capacity
Integration of synchronous traffic in campus backbone (e.g. PBX trunks)
HSTR no substitute for ATM Circuit Emulation
Extend LAN environment across the WANATM is directly compatible with wide area transmission
technologies such as SONET
HSTR and ATM will happily co-exist!
HSTR Seminar Series 74
WAN
ISDN
Video roomsystem
Video Conferencing on Token Ring
H.320
H.323
H.323
LAN-VideoGateway
H.320 video conferencing onISDN standard
H.323 video conferencing onthe LAN standard
HSTR Seminar Series 75
Story not so good for Ethernet users...
Ethernet does not have the same priority scheme as Token Ring
Being added as part of IEEE 802.1p/q Changes to Ethernet MAC Means installed Ethernet equipment not
compatible To deploy QoS in Ethernet requires all new
equipment Yet another complete upgrade for Ethernet!
HSTR Seminar Series 76
Comparison with Ethernet
Ethernet802.1p/q desktops
1Gbps inbackbone
Switched100Mbps
Large frames
Smaller sharedsegmentsShared
10Mbps
Switched 10Mbpsin backbone
100Mbps in backbone
Switched 10Mbpsto desktop
1980 1998 2000
HSTR Seminar Series 77
Token Ring & HSTR The best fit to networking needs
Smaller sharedsegments
Shared10Mbps
Switched 10Mbpsin backbone
100Mbps in backbone
Switched 10Mbpsto desktop
1Gbps inbackbone
Switched100Mbps
802.1p/q desktops
Large frames
Token Ring
Shared4Mbps
Shared 16Mbps
Switched 16Mbpsin backbone
1980 1998 2000
HSTR
HSTR Seminar Series 78
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
HSTR Seminar Series 79
Network Integration with 802.1q
New IEEE 802.1q standard allows frames of one network technology to be carried by another
Because HSTR supports bigger frame sizes than Ethernet, HSTR can be used to carry Fast Ethernet frames
Deploying HSTR in the backbone allows Ethernet and Token Ring to access the same network services
HSTR Seminar Series 80
Network Integration with HSTR
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
HSTR Seminar Series 81
Summary
Token Ring has built-in support for QoS
Support for QoS is only a driver update
HSTR is QoS ready
Madge products are QoS ready
Adapters and Switches
Token Ring is multi-Services ready
...but it’s a fork lift upgrade for Ethernet desktops
HSTR Seminar Series 82
HSTR Performance
www.madge.com
HSTR Seminar Series 84
Interest in HSTR
HSTR Seminar Series 85
HSTR in Action
HSTR Seminar Series 86
HSTR Seminar Highlights
www.madge.com