1. Product Marketing Manager EMEA
Ethernet Everywhere™ all your applications supported in the LAN, MAN and WAN
Martin van Schooten
Product Marketing Manager EMEA

2. Conventional Wisdom - Past
Voice
Data
Key Systems
PBX
C.O. Switches
CSU/DSU
Multiplexer
Router
Remote
Bridge
Enterprise
Switch
LAN Switch
Adapter
Card
802 LAN
Video
Industry
“Convergence”
toward ? 18 12 4

3. The Evolution of Conventional wisdom
LAN
WAN
MAN
RAN
The crystal ball…
5 Years ago
ATM
2 Years ago
Ethernet
ATM
5 Years ago ATM was thought to be the technology for the future. A single technology for the LAN, MAN & WAN.
2 Years ago we realised that ATM was too complex and too expensive for the LAN. Also, improvements in Ethernet technology (ie, switching, p etc) gave us a "new and improved" Ethernet.
Today, Ethernet is clearly here to stay in the LAN and is now used to construct private MANs. Also, as bandwidth becomes more of a commodity, CLECs are starting to use Ethernet for the construction of MANs & RANs
ATM
Today
Ethernet

4. Why was ATM regarded the Holy Grail ?
Scalable Bandwidth Economical Deployment
25, 155, 622 Mbps etc
Ubiquitous LAN/MAN/WAN
“ATM Everywhere”
Quality of Service Good for Voice/Video
Bandwidth /Latency
Resilience Rock solid infrastructure
Meshed networks
5 Years ago ATM had several advantages over Ethernet

5. Ethernet as it started 18 12 4

6. but speed is only part of the story
Evolution of Ethernet
Speed
10Mbps 100Mbps 1Gbps 10Gbps
but speed is only part of the story

7. Evolution of Ethernet Speed Topology Packet Forwarding
10Mbps 100Mbps 1Gbps 10Gbps
Topology
Bus Star/Tree Mesh
Packet Forwarding
Bus Repeater L2-switch L3-switch
Quality of Service
CSMA/DC Full Duplex Priority Controlled BW
Distance
2km 200m (CSMA/CD) Unlimited (Full Duplex)

8. Ethernet Evolution 2001/2002 1999/2000 1998/1999
Wide Area
TDM
Connection
WAN Level
Core
Connectivity
WAN
Access
Services
10,000 Mbps
10 Gigabit Ethernet
1999/2000
MAN Level
Metro Network
1000 Mbps
Gigabit Ethernet
1998/1999
Backbone
Level
Switch
Enterprise
Router
1000 Mbps
Gigabit Ethernet
1970’s/1980’s
Desktop Level
Workgroup Level
Desktop
Switch
Workgroup
Servers
10/100 Mbps
Ethernet
As this network diagram shows, Gigabit Ethernet will be used:
For server connectivity, at places in the network where a lot of traffic is concentrated (highlight).
As a high-performance uplink for workgroup switches (highlight).
In the backbone - (it’s primary role).

9. Ethernet Scalability
5 years ago connections were predominatly 10Mbps Ethernet with Fast Ethernet just being introduced as a competing technology to FDDI. At that time, a scalable ATM solution looked attractive.
Moreover, 5 years ago there was no Layer-3 switching. Layer-2 switched networks do not scale very well and s/w based routers where bottlenecks
Today, Ethernet is offered at 10, 100 & 1000Mbps and 10Gigabit Ethernet products are expected shortly. So in fact, Ethernet has turned out to be more scalable that ATM.
Also, the introduction of Layer-3 switching (aka routing) means we can build VERY scalable networks with Ethernet and L3 switches.

10. Quality of Service TDM Switch SDH famous for QoS
Voice
Data
Video
TDM Switch
SDH famous for QoS
Guaranteed Bandwidth
Fixed latency
By reserving transmission time (timeslots)
SDH is famous for it and it’s what you get with any TDM technology. Gauranteed bandwidth and guaranteed fixed latency (ie low jitter).
…. And why…… because TDM means that timeslots are reserved for different traffic streams…… even if a particular traffic stream doesn’t need to forward any data.
That’s been good in the past but it isn’t particularly efficient. For example, if no video traffic is being forwarded (because no one is watching a video), the bandwidth is still reserved for the video and so the bandwidth cannot be used by other applications.

11. Guaranteed! Bandwidth by the Slice Min 15Mb/s Subnet X
Bi-directional
Guaranteed!
Min 15Mb/s Subnet X
Max 30Mb/s web data
Min 5Mb/s VoIP
Committed Information Rate (CIR) -type services for Ethernet
Bi-direct rate shaping
Control traffic on Egress
Police traffic on Ingress
So Ethernet can be sliced up in a similar way to an SDH ring. If, say, VoIP traffic needs 5Mbps to operate, then the bandwidth can be reserved explicitly for that application.
In fact, it’s better than TDM. If the VoIP traffic doesn’t need to use all of the 5Mb/s of bandwidth, the remainder can be used by other applications.

12. SDH Restoration Key attribute of Sonet/SDH SDH
SDH – Multiplexed Switching Protection (MSP)
Sonet - Automatic Protection Switching (APS)
50-60ms failover
ADM
SDH
The second famous characteristic of SDH/sonet is the recovery times when a fibre link or equipment component fails.
Carriers are used to around 50ms recovery times which are achieve due to MSP (for SDH) or APS (sonet) technology which monitors the ring and wraps when a faul occurs.
ADM
ADM

13. (Gigabit) Ethernet Restoration
SDH ring
Gigabit Ethernet
Rings
Ring or Mesh topology
Link state routing algorithms
Convergence times
OSPF ~ 6 seconds
IS-IS ~ 6 seconds
(Fast) Spanning Tree ~1 sec
MPLS improves recovery
Reserve paths before failure
10-50 ms
New Ring technologies
Resilient Packet Ring
EAPS < 1 sec failover
Here’s yet another area where Ethernet has improved vastly over the last few years.
We can build Ethernet networks using mesh or ring architectures and both have there advantages.
Recovery mechanisms such as can operate at Layer-2 or Layer-3 and can provide restoration in one or a few seconds.
Is this fast enough ? Well it’s certainly not as fast as SDH/sonet……. But is it fast enough ?
Obviously it depends on the importance of the traffic being carried…. but also how often a failure is expected. 6 seconds of downtime every 6 months isn’t bad by anyone’s standards.
Techniques such as MPLS will only improve recovery times. MPLS allows a “make before break” feature which allows backup paths to be reserved in advance reducing recovery times to those similar to SDH.
In addition, new ring technologies such as Resilient Packet Ring (assigned to IEEE ) are being developed to reduce recovery times for packet based networks. However, this is likely to take several years to develop a standard.
In the meantime, Extreme Networks has pioneered EAPS – Ethernet Auto Protection System – which introduces an SDH/sonet type recovery mechanism to an Ethernet ring architecture. [note to presenter: it is likely that Extreme will commit to sub-second recovery times for EAPS athough in actual fact recovery time could be fairly close to SDH times. However, care should be taken to avoid commitments on this at this time]

14. Gigabit Ethernet Distance isn’t the issue for the MAN/RAN 100 meters
Cat 5 UTP wiring T
62.5µ MMF
220/275 meters SX
50.0µ MMF
500/550 meters
550 meters LX
10.0µ SMF
5000 meters
62.5µ MMF
70km
10.0µ SMF
100 km with Extenders LX
Distance isn’t the issue for the MAN/RAN

15. Yipes Regional Gigabit Network
Yipes Metro Network
Yipes GigaPOPs
WAN connectivity
Private & Public peering
Product Offerings
YipesNet
High speed Internet access
An era of Bandwidth Abundance
Up to 1Gbps starting at 1Mbps
YipesMAN
Regional Virtual Campus
Connects across the MAN at LAN speeds
Uses Extreme vMAN function

16. Price Model changes Radically$
Megabits
SONET/ATM
IP/Ethernet
Traditional Telco model
T Mbps ~ $1000/month
T3 45 Mbps ~ $10k/month
Optical Ethernet cost models
3 Mbps ~ $900/month
100Mbps ~ $4k/month
“Customers can buy as little or as much bandwidth as they want. It's a fantastic proposition. The potential market is huge”
Forrester Research

17. Electronics/optics $/Mbps
Cost comparisons
Electronics/optics $/Mbps
BW mgmt & Provisioning
Annual Maint Upgrades
BW on Demand
IP/ATM/SONET
$8-40
$5k
$750-$3750
Very difficult
IP/SONET
$6-35
IP/Ethernet
$1-3
$1k $
Yes
GigE Advantage
8:1 - 13:1
5:1
5:1 – 8:1
Source: Yipes, Dell ‘Oro, Yankee Group, Extreme Networks, Juniper Networks Assumes a regional networks with fibe hubs and 10 rings

18. Yipes Service Provisioning
Flexible service provisioning
Up to 100Mbps within 24 hours
Up to 1Gbps with 72 hours
Auto-provisioning via website
Partnership with Syndesis
Guaranteed SLAs
monitored by customer
Automatic credit
Yipes Customer Care

19. Putting the Service into SLAs
Guaranteed QoS
Throughput and Latency
Monitored by Customer
Credit given when SLAs missed
Latency
Throughput
Bits in/sec
Bits out/sec

20. New Age Service Provisioning
“Extreme Ethernet EverywhereTM”
Tremendous cost savings over traditional SONET/SDH + ATM
Eliminates multiple “truck rolls”
Provision changes in minutes
Reduced operational costs
Optimized for data
WAN connectivity at LAN speeds
QoS with Service Level Agreements

21. Extreme is Ahead of the Market
Ethernet Everywhere™
The next logical step
Expanding from the customer premise to the metropolitan area
Adding critical requirements
Broadband switching
Resiliency and redundancy
Provisioning bandwidth
Data optimized
Long- and medium-reach optics
10 gigabit optical WDM
Internet
Core
MAN
MAN
MAN
LL: Add “Internet Protocol (IP) Everywhere” slide from corp pres before this slide. The one that has the cloud in the middle with the four diff apps. You need to set up your argument for EN in the MAN.

22. Architectural Positioning of 10GE
HIGHER LAYERS
OSI Layer Model
LLC
Application
Presentation
Session
Transport
Network
Data Link
Physical
MAC CONTROL (Optional)
MAC – Media Access Control
LAN PHY
WAN PHY
PHY
MEDIUM
Serial 850nm optics
WWDM 1310nm optics
Serial 1550nm optics
Serial 1310nm optics
PMD

23. Cost Comparison - Ethernet vs. SDH
OC-3
OC-12
OC-48
$ Per Gigabit of Bandwidth
OC-192
1G Eth
10G Eth
This diagram illustrates the cost effectiveness of SDH and Ethernet equipment.
First, a couple of points to note:
The scale on the left is logarithmic. Due to the huge difference in cost, a logarithmic scale is the only way to compare on a single graph.
The left-hand scale shows the cost per Gigabit of Bandwidth. For example, in order to buy a gigabits worth of bandwidth using OC-3 ports, about 6.5 ports would be needed – costing $6,229 each (in year 2000). So the total price for one Gigabit’s worth of OC-3 is $40,118.
At each point, SDH/sonet technology comes in at around 10 times the cost of the equivalent Ethernet technology. Put another way, a service provider can spend $3million or $30million on building a network infrastructure to handle a given amount of traffic.
Of course, these are capital costs – in addition, there is the cost to install and maintain these technologies. Due to its simplicity, Ethernet ongoing costs will be much less than SDH/sonet.
As bandwidth becomes more of a commodity, Ethernet technology allows the MAN/RAN service provider to operate on a radically different cost model. Or to put it another way, operate with higher margins !
Source: Dell’Oro Group

24. Industry analyst predictions
10 Gigabit Ethernet revenue in WAN/MAN will grow over 2500% to $1.8 Billion in 2003
10 Gigabit Ethernet market will reach $3.6 Billion in 2004
10 Gigabit Ethernet will start significant LAN penetration in 2003
By 2004, over 800,000 ports of 10 Gigabit Ethernet will exist, most of which will be in the WAN and MAN

25. Ethernet Scalability
5 years ago connections were predominatly 10Mbps Ethernet with Fast Ethernet just being introduced as a competing technology to FDDI. At that time, a scalable ATM solution looked attractive.
Moreover, 5 years ago there was no Layer-3 switching. Layer-2 switched networks do not scale very well and s/w based routers where bottlenecks
Today, Ethernet is offered at 10, 100 & 1000Mbps and 10Gigabit Ethernet products are expected shortly. So in fact, Ethernet has turned out to be more scalable that ATM.
Also, the introduction of Layer-3 switching (aka routing) means we can build VERY scalable networks with Ethernet and L3 switches.

26. Further information www.10gea.org www.ieee802.org/3/ae/ Applications
Presentations
Whitepapers
Events
Interoperability
Full technical detail Standards progress

27. Thank You!

28. Thank You!