新世代骨幹網路趨勢 “Building Metro Networks” Offering Ethernet Services

新世代骨幹網路趨勢 “Building Metro Networks” Offering Ethernet Services
中華醫事學院與台南區網中心研討會 Extreme Networks 極進網路台灣分公司錢旭光

Agenda Extreme Way Broadband Network Trends How to build an MAN
Metro Area Network How to build an MAN MAN Technologies & Topology Product Briefing Q & A

Delivering the Most Effective Applications Infrastructure
The Extreme Way Delivering the Most Effective Applications Infrastructure This presentation contains no company confidential information, and is suitable for all audiences. Paul De Zan is the author of this presentation. He can be reached at

The Extreme Way: A Networking Success Story
We founded Extreme Networks in 1996 because networks were slow, expensive and complex – and nobody was doing anything about it We built some of the largest networks in the world: Compaq, Microsoft and Shell We led the silicon switching revolution by making networks that are simpler, faster and less expensive. When we started Extreme in 1996, networking had become stuck in a cycle of steadily increasing complexity and cost. The availability of bandwidth, especially Internet bandwidth, had begun to drive a tremendous boom in business applications. This in turn increased the demand for bandwidth, which meant companies had to deploy more and more infrastructure. So far so good -- software companies sell lots of applications, their customers get more productivity from those applications and networking companies sell more networking gear. What could be wrong with that? This could be wrong: the networking gear. Based on CPUs and software, it simply didn’t scale very well. The more of it you bought and implemented, the more complex and expensive the network became. And as millions of new users came online, performance problems became very serious, and very expensive to fix. The founders of Extreme had a better idea. By implementing networking processes in high-speed silicon instead of CPUs and software, they created products that blew away everything else on the market. Extreme’s Layer 3 switching technology enabled the creation of network infrastructure that could truly scale to meet the explosive demand for new business applications. Faster, more easily managed and far more cost-effective, Extreme’s famous purple boxes revolutionized the way people thought about networking. Over the five years of our life as a company, we’ve grown to a half-billion dollars in revenue and nearly 1000 employees. Along the way, we’ve built some of the largest networks in the world, and permanently altered the course of our industry.

An International Company From Day One
Our home is in Silicon Valley, but we are true citizens of the world. From the day we shipped our first product, Extreme has been an international company with an international outlook. We never had to “go international.” We’ve been international from the start. More than 50% of our revenues consistently come from outside the US. We have offices in 25 countries and a presence in 25 more. We’ve developed an extensive support network that provides 24x7x365 customer service and support from technical assistance centers on three continents. No matter where your business operates, or plans to operate in the future, Extreme can support you. More than 50% of revenues come from outside the US Offices in over 25 countries 24/7 customer support based on three continents

Outstanding Financial Performance
One of the fastest growing companies in Silicon Valley history Our focused approach has been a major factor in making us one of the fastest growing companies in Silicon Valley history.* We’ve grown to a half-billion dollars in annual revenues in just five years, a remarkable achievement, and one that hasn’t been duplicated. Over a dozen other networking companies were formed at the same time Extreme was founded, and not one of them has reached the half-billion mark. Our consistent revenue growth is a good indicator of the wide acceptance of both our products and our approach to building networks. *Extreme Networks was named Silicon Valley’s #1 fastest growing company by the San Jose and Silicon Valley Business Journal. The special report, published in the June 30, 2000 issue, ranked Extreme Networks as the leading company for three-year revenue growth.

Financial Performance: Business Mix
Extreme builds both stackable and modular chassis-based products. As you can see in this chart, we currently have a split between the two types of product. Our modular business has grown rapidly in the past two years. In the next chart you can see that Extreme sells its products largely through channel partners. Lastly, as I mentioned before, Extreme has always been an international company. On average just about half of our revenue comes from outside the Americas.

Financial Performance: Market Share
Worldwide Layer 3 Fast Ethernet Port Share Worldwide Layer 3 Total Port Share (10/100/1000 Ethernet) Gigabit Ethernet Extreme 27.4% Cisco 18.4% Enterasys 12.7% Foundry 9.2% 3Com 3.7% Nortel 8.0% Riverstone 5.3% Others 8.3% 31.3% 13.4% 15.0% 7.9% Alcatel 5.2% 10.0% 5.4% 9.6% 15.3% 31.5% 7.1% 9.0% 3.9% 15.6% 7.2% 5.7% 4.9% Avaya 2.1% 2.2% 1.7% Q1 Calendar Year 2002 – January - March 2002

Financial Performance: Market Share
Worldwide Layer 3 Fast Ethernet Port Share Worldwide Layer 3 Total Port Share (10/100/1000 Ethernet) Gigabit Ethernet Extreme 27.0% Enterasys 18.8% Nortel 12.1% Foundry 10.4% 3Com 1.0% Cisco 9.8% Alcatel 6.1% Others 7.5% 28.1% 11.8% 20.1% 8.7% 10.2% Riverstone 5.2% 7.9% 23.0% 15.1% 9.1% 5.3% 13.0% 6.5% 5.5% Avaya 1.8% 3.9% 1.6% Calendar Year 2001

The Value Of The Extreme Way
First, infrastructure built with Extreme products is fast. Silicon-based networking out-performs conventional, CPU-and-software networking every time. We originated this concept, and we continue to lead the industry in every important performance category. The speed of Extreme’s products directly translates into much better applications performance. Applications performance is what defines the value of the network experience, and so is a very important factor in creating effective infrastructure.

Second, Extreme’s consistent hardware, software and management architectures make networking much less complex. Our core platforms – Summit, BlackDiamond and Alpine – are all based on the same technology. The family resemblance in our product line goes much deeper than the purple boxes: all of our platforms are truly, transparently compatible. This isn’t the case with conventional networking product – they tend to be a rough mix of many different technologies wrapped together with complex software. What does this mean to you? It means that an Extreme infrastructure is easier to configure and deploy, requires very little maintenance and is simple to operate.

Finally, an Extreme network is a more valuable network, one that delivers better services at a lower cost. Our products are less expensive to acquire and less expensive to operate and support. When you combine performance, simplicity and better return on investment, you get a superior network and a superior applications infrastructure. That’s the Extreme Way.

The Extreme Product Family
NOTE TO SPEAKER: This is the only product slide in the main body of this presentation. In the first revision of this presentation there will be a navigation button which will link to a subset of 5-6 product slides, all very high-level and not deeply technical in nature. Summit

It’s Going To Be One Big Networked World…
More and more, companies are combining their own networking infrastructure with carrier-provided services. Many of Extreme’s customers are doing this today. The emerging Metro Area Network, whether built by a single company or provided by a service provider, or assembled from a combination of private and service provider-owned infrastructure, is supporting a similar set of users and applications.

The Extreme Future We believe Extreme’s Ethernet Everywhere vision is the future of global networking Our ultimate goal is to be an integral part of the world’s communications system Extreme is creating a future of easily deployed, highly scalable, intelligently managed, ubiquitous applications infrastructure

Broadband Network Trend

Broadband Network Trends
80% of traffic is data and doubling every 12 months Broadband networks must evolve from voice to data optimized Demand for more speed, lower price, better service Plenty of alternatives technologies and players 10G, xDSL, Wireless and IXCs, ILECs, NAPs, CLECs Metro fiber and 10G/WDM removes the bandwidth barrier Glut will drive prices down, CLECs must reduce costs IP and Ethernet each eclipsing rivals in Metro Network Ethernet MAN

What’s a Metro Area Network (MAN)
High-capacity fiber backbone covering metro area Typically runs on SONET ring or dual ring Usually multiple interconnected rings Utilizes fiber owned or leased by Service Provider Cost breakdown different from long haul networks Long haul: 70% fiber, 30% equipment Metro area: 30% fiber, 70% equipment * Backbone equipment is very strategic investment for Metro Area Network service providers * Source: Banc Robertson Stevens 1999

Typical MAN Architecture
SONET/SDH core Multi-protocol High reliability Bandwidth guarantees Predictable latency Very expensive Hard to change Voice optimized Inefficient for data Central Office T1 T3 Other Metro Regions Off Net Qwest n Gigabit Local ring Multi-Gigabit Metro Ring Level 3 SONET On Net Sub Gb Local ring Public Peering

Who Are The Metro Players
Metro Service Providers Typically Regional CLECs (Tier 2) and ILECs Sell retail bandwidth and services to Enterprises Sell wholesale bandwidth and services to CLECs and ISPs IXCs, NAPs, Next Generation Carriers Offering wholesale long haul transport between regions Municipalities, Utilities Offering wholesale dark fiber leasing to CLECs and ILECs

Metro Provider Business Strategy
Metro bandwidth at unprecedented price points Disruptive price point for high-bandwidth customers Faster deployment and flexible control of bandwidth Within same metro and long distance between metros Large / medium Enterprises and Tier 3 CLEC/ISPs Inter-connecting enterprise LANs and SP POPs Providing wholesales and retail Internet access

Metro Provider Network Strategy
IP centric network and product strategy IP/Ethernet hand-off to customers Via switch at customer premises or co-lo facility Own as much of the backbone as possible Purchase or long term lease of metro dark fiber Own backbone equipment, customer located equipment (CLE) Lease wholesale bandwidth for long haul

Ethernet Metro Market Drivers
Enterprise Networks Outsourcing Data Services IT shifting network build-out to Metro providers High bandwidth applications (storage, Backup, ..) across the Metro, double traffic every 1~2 years Existing Metro technologies (TDM) are NOT data optimized Legacy networks are built for voice Difficult to scale to support high bandwidth services Better Economics for delivering high bandwidth services Delivering “just in time” bandwidth Faster return on investment

The Metro Today Data L2/L3 Switches IP Routers ATM Switches SONET ADMs
Ethernet Aggregation IP Routers BGP, IP Services Data ATM Switches QoS/Traffic Engineering Transport Fiber SONET ADMs TDM Pipes WDM More Bandwidth The Metro today consists of layers of technologies that satisfy different needs. - The fiber offers the physical connectivity - Wave Division Multiplexing is used to offer more Bandwidth per fiber - Sonnet Add Drop Multiplexers are used to slice the bandwidth into Time Slots using Time Division Multiplexing (TDM). SONET TDM has traditionally been used for voice services and is very inefficient for Data Services since it can only be sold in rigid bandwidth increments (1.5 MBPS to 51 Mpbs to 622 Mbps to 2.4 G and then 10G). ADMs are used to offer point to point transport circuits (T3, OC3, OC12, etc) in the Metro - ATM switches have Traditionally been used for traffic engineering and QoS - IP routers are used for IP services such as Internet connectivity and VPN - and L2/L3 switches are used for Ethernet aggregation. This is very expensive and the upgrade of any of these layers would affect the whole network. The Operational costs for maintaining such networks (operational costs are 80% of the total expenses) are huge.

The Shortcomings of SONET/SDH
SONET is TDM based - optimized for voice not data Complex and expensive, designed for multi-protocol Uses point to point circuits - difficult to provision Meticulous management of available channels Long-lead times to enable, change, or upgrade No granularity - bandwidth comes in big increments Burn a whole 45Mbps channel to deliver 10Mbps Can multiplex customers onto full channel but costs Requires ATM and adds more routing complexity

Ethernet IP Switch Routers
The Metro Is Evolving Ethernet IP Switch Routers WDM/Optical Bypass Ethernet Aggregation, BGP, IP Services, QoS, MPLS, IP TDM More Bandwidth Data + Transport SONET Lite/WDM Fiber Packet Pipes, Some Data Handling, More Bandwidth Transport + Data What carriers want is the ability to maintain the Services (viewed on the right side) without the complexity of existing networks. Al large carrier once said, it starts with Ethernet and ends with Ethernet and we pay a Ton of money in between. The new Metro deployments are going to fall under two Models: 1- Ethernet IP Switch Routers (note the new terminology here instead of L2/L3 switches) connect directly into the fiber and deliver Ethernet over Glass. In this case the IP switch router has all the IP intelligence and can also offer enhanced bandwidth on the fiber by adding DWDM. This is comparable to the model where Extreme BDs and Alpines with GE or WDM blades connected in a ring. In this case the Extreme switches will offer ring protection (sub-second) via EAPS 2- Second model is when Extreme Switches connect into an Optical infrastructure consisting of switches from Nortel (Optera), Ciena (Metro), ONI and Others. In this case, the customer would be putting an emphasis on deploying a big optical infrastructures that handles 60+ wavelength per fiber and would look for Extreme for the IP services portion.

IP/Ethernet Technical Advantage
Ethernet now extends from MAN to building Over any MAN/WAN and in-building media (fiber, copper, air) Ethernet or IP from Gigabit MAN to customer point No longer necessary to have a multi-protocol backbone IP/Ethernet service model is easy to configure VLANs enable point and multi-point connections Ideal for interconnecting COs, POPs, branch offices (TLS) IP routing enables efficient Internet traffic hand-off Ideal for VPNs, content distribution, hosting services Bandwidth by the slice and policy-based QoS

IP/Ethernet Business Advantage
IP / Ethernet economics means faster profitability 80-90% saving over SONET total cost of ownership * IP / Ethernet gives Carrier the competitive edge Better pricing and faster deployment More responsive with less expertise Simpler for you and customer to manage Allows rapid, cost-effective service provisioning * Sources: Dataquest 12/99, Yankee 12./00

Ethernet Scalability Advantage
Radio Dial Provisioning 1.5 Mbps 10 Mbps 45 Mbps 100 Mbps 1 Gbps 10 Gbps SONET/SDH Jagged Provisioning OC3 STM-1 (155 Mbps) OC12 STM-4 (622 Mbps) OC48 STM-16 (2.4 Gbps) OC192 STM-64 (9.6 Gbps) “Ethernet is 1/5 to 1/10 the cost of packet over sonet” Dataquest, 12/99 “Leasing of dark fiber within a metro area yields a 96% saving versus leasing a T3 service from an ILEC” Yankee 12/00

Ethernet Economic Advantage
Cost of T3 equivalent bandwidth Architecture Options Source: MCI Worldcom, Yipes, Dell ‘Oro, Yankee Group, Extreme Networks, Juniper Networks

Ethernet Economic Advantage
Equipment $/Mbps BW mgmt & Provisioning Annual Maint Upgrades BW on Demand IP/ATM/SONET $8-40k $5k $750-$3750 Hard IP/SONET $6-35k IP/Ethernet $1-3k $1k $ Easy 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 network with five hubs and 10 rings

Comparative Bandwidth Pricing
2000 2001 2002 2003 2004 $0 $5,000 $10,000 $15,000 $20,000 $25,000 $30,000 $35,000 $40,000 $45,000 ASP Per Gigabit of Bandwidth OC-3 OC-12 OC-48 OC-192 10 GE Source: Dell’Oro, 2000

Disruptive Pricing Example
Double the bandwidth, half the price Traditional Telco price structure T Mbps ~ $1,000/month T3 45 Mbps ~ $10,000/month Optical Ethernet price structure 3 Mbps ~ $900/month 100Mbps ~ $4,000/month SONET/ATM $ IP/Ethernet Megabits “Customers can buy as little or as much bandwidth as they want. It's a fantastic proposition. The potential market is huge” -- Forrester Research

Market Size for GbE MAN GbE is a new, price-disruptive technology
Total Market: $25.7B GbE is a new, price-disruptive technology With enhanced Carrier-grade features (APS, QoS, Billing), GbE can have a huge upside in the market! Source: U.S. Bancorp Piper Jaffray and RHK, Inc.

Ethernet MAN Market Segments
Retail Services Large/Medium Enterprises Transparent LAN services (TLS) ATM/FR/IP managed services High speed Internet access Voice trunks between offices Communities of interest (Extranet) Differentiated IP Services Wholesale Services Regional ISPs, Tier 3 CLECs Trunks between COs and POPs POP/Data Center co-location Aggregation of MTUs for BLECs Content distribution services Upstream Internet access Region to region Interconnect Revenue split between Retail and Wholesale varies, depending on Metro provider’s main business focus

Retail MAN Services Business Internet Access Transparent LAN Services
Still the largest revenue generating service Transparent LAN Services ‘Point to Point’ and ‘Point to Multipoint’ Connectivity Within the Metro Across long-haul networks Multimedia Services VPN - Managed Firewall Voice - Tie-line replacement via TDMoIP Storage - Disaster Recovery Video - Residential and Commercial

When to Use Ethernet MAN Services
Today (2001) Bandwidth, Bandwidth, Bandwidth LAN to LAN Connectivity, Internet Access Where there is coverage Tomorrow (2004) High bandwidth WAN access Converged multiple voice/video services Source: Mark Gartner

New Ethernet MAN Service Timeline
Voice Transportation BW on Demand Comprehensive NSP Tiered Services Storage Services LAN-LAN 2001 2002 2003 2004 2005 Internet Access ASP Bundling VPN Aggregation Voice Gateways Source: Mark Gartner

Service/Deployment Details
VLANs One vMAN per TLS service Customer’s traffic is Tagged or Un-Tagged and then vMANs One physical port per service Topology L2 for TLS L3 for internet Access Fixed Bandwidth Min./max. bandwidth with Ingress Rate Shaping Fixed rate billing Starts at a min. of 10 Mbps Other Lin Aggregation for additional bandwidth Support for .1p exists but not yet used Scripted CLI for management and SNMP/Syslog monitored with Micromuse Netcool SLAs Availability 99.95% Packet Latency < 50ms (within Metro) Packet Loss 0.01% MTTR 1- 4 Hours

MAN provider example - Yipes
Yipes Service offering Providing service to 300 business customers High speed Internet access Regional Virtual Campus Provide Yipes MAN, Yipes WAN, Yipes Wall services Connects across the MAN at LAN speeds Uses Extreme vMAN function What Extreme Sold 21 MANs around the US 80 BlackDiamonds, 300 Alpines, 350 Summit 48i’s Yipes originally went with Cisco for the DS3 capabilities, than switched to Riverstone and is now replacing with Extreme. Chris Becerra is the sales contact

A True Broadband MAN GigaPoP GigaPoP Other Yipes Regions Qwest Level 3
n x Gb/s Regional Ring GigaPoP Level 3 Qwest SONET GigaPoP 1 Gb/s Local ring Public Peering

Greater China Extreme MAN
Shanxi Telecom MAN China Mobile deals XinJiang Mobile MAN Sichuan Mobile MAN China Mobile Hunan Shandong Weifang TV & Broadcasting CATV Chung Hwa Telecom 中華電信 FTTB - Fiber to the building Around the island, total more than 50 COs in CHT Koo‘s Broadband Telecom 和網寬頻 First MAN customer in Taiwan, started operation Aug. 01'

Koos Broadband Telecom Network Diagram

Chung Hwa Telecom FTTB North Region
北四東四石牌一 1G ring 1G ring 汐止 1G 東五 1G ring 1G 東二 1G ring 1G ring 劍潭內一 1G ring 網管工作站 Hinet (ISP) 石牌二 GESWc 江翠 1G ring BB-RAS 南一 1G ring GESWr 1G ring 積穗板一南二 Hinet GigaPOP設備 1G ring

Extreme’s Value Proposition
Extending Ethernet Everywhere to the first mile Simplified IP/Ethernet service model over metro fiber, and Telco access network over T1/E1, T3 WAN links Subscriber-level provisioning and management end-to-end across a common system architecture Simpler, quicker, more cost-effective service deployment

How to build a MAN Ethernet MAN Technology

Extreme Uniqueness for MAN Networks
Wire-speed Switching and Routing Layer1 thru’ Layer4 packet classification Service Level Agreements (SLA) Bidirectional rate shaping vMAN Transparent LAN Services Billing and Provisioning $ EAPS Resilient Rings Network Login Authenticating Users

The need for ‘Rate Shaping’
Multiple customers per building/location Bandwidth requirement differs per customer Need to offer unique ‘tiered services’ Bi-directional rate shaping at the edge Application/flow based bandwidth allocation Customer #1 50 Mbps Customer #2 30 Mbps Customer #3 45 Mbps Customer #4 50 Mbps Ethernet Access/MAN Ring Customer #5 100 Mbps

Bandwidth by the Slice Committed Information Rate (CIR) like services
B I D I R E C T I O N A L Min 15Mb/s Subnet X GUARANTEED! Max 30Mb/s DiffServ Min 5Mb/s VoIP Committed Information Rate (CIR) like services Bi-directional rate shaping enables bandwidth slicing Control traffic on egress, police traffic on ingress

QoS Profile (configured queue)
Layer Independent QoS End-to-End Policy-Based QoS Mapping from PB QoS and/or 802.1p to IETF Diff Serv and/or MPLS Labels Classification QoS Profile (configured queue) =Policy Ordered Hierarchy Layer 1,2,3,4, .1p, IP DiffServ packet info Qp1 - Best Effort Traffic Packets IN Packets Out Packet 0% Min/100% Max Low Priority Layer 4 Layer 3 Layer 2 Layer 1 Layer 4 Layer 3 Layer 2 Layer 1 QpX - Essential Traffic 5% Min/100% Max Higher Priority

Choice of L2 and L3 Service Models
Ethernet switching in the WAN Layer 2 model (Virtual Campus) Ethernet encapsulation over WAN BCP/MLPPP VLAN aggregation Traditional IP routing in the WAN Layer 3 model (Internet Access) IP encapsulation over WAN IPCP/MLPPP IP routed subnets For mixed vendor environments e.g. Interoperable with Cisco IOS Ethernet Everywhere Ethernet Switching IP Routing

L2 Ethernet VPNs Transparent LAN Services Internet L2 leased lines
ISP A ISP B Transparent LAN Services L2 leased lines Point-to-multipoint VPNs VMAN ISP Metro-POP We believe Ethernet is over-coming the limitations of SONET in the metro areas: - GigEthernet over fiber reaches 10Km - 10x price/performance advantage - Emerging QoS - Reliability/redundancy – new standards emerging to provide self-healing … And the Optranet EPIC series is an ideal solution here: - IP/Ethernet model - Gig Ethernet WAN link option - Only SLAM that can scale from 1Mb to Gb service level on a common system platform (no forklift upgrade) C2 C1

vMANs: Virtual Private Metropolitan Area Networks
Data Link Header .1Q Tag VLAN ID = 10 Customer Date ( Bytes) Data Link Header vMAN Tag Domain = 50 Customer Date ( Bytes) .1Q Tag VLAN ID = 10 Data Link Header vMAN Tag Domain = 60 Customer Date ( Bytes) .1Q Tag VLAN ID = 30 Data Link Header .1Q Tag VLAN ID = 30 Customer Date ( Bytes)

EAPS across Multiple Rings
EAPS is transparent to the number of rings deployed Each ring has its own EAPS domain(s) An EAPS domain is applied only on a single ring A node can oversee multiple domains on different rings In the figure Node P is Master for Ring 2 Node Q is Master for Ring 3 Nodes R and T are both Masters (of different domains) on Ring 0 Node T is also Master of domain on Ring 1 500 VLANs & 40 ms failover

Network Login Admits user to network based on username and password
Prevents pre-authentication DOS attacks

Network Login in action
Switch detects connection on the switch port Client issues DHCP request, switch responds Switch responds with Login web page Switch performs a request to RADIUS server If user is validated, switch unblocks port and assigns VLAN Network DHCP DHCP lease timer was set very low initially by Network Login switch. Client will re-request DHCP and because client is on appropriate VLAN, client gets the “real” information

Network Login in action
Switch detects connection on the switch port Client issues DHCP request, switch responds Switch responds with Login web page Switch performs a request to RADIUS server If user is validated, switch unblocks port and assigns VLAN Otherwise, Access is denied Network RADIUS

MAN Topologies

End-to-End Ethernet in the Metro
WAN DWDM WAN POP WAN Core WAN Edge Ethernet Metro Access Ring Core Ring Metro POP GbE OC-12c or OC-48c PoS with PPP/BCP OC-3c or OC-12c ATM with RFC 1483/2684 Point-to-Point GbE 4 Channel cWDM 10G/ cWDM GbE Ring Ring-in/Ring-out Summit Switch Ethernet over CAT3 or 5 T1, DS3/T3, E1 or E3 Existing WAN router Fiber

Scalable WAN Connectivity to POP
All MAN and WAN connections treated as Ethernet or IP Consistent QoS and bandwidth provisioning on-Net and off-Net GbE Metro POP Central Office T3s, Fast Ethernet or GbE Fast Ethernet T3 “Legacy refers to the current, TDM-based infrastructure – with T1 and T3s The Alpine series supports IP Layer 3 service model across NxT1 and T3 WAN using MLPPP It will also support a ‘native IP/Ethernet’ model – propagate Ethernet characteristics across the WAN link The common end-to-end Ethernet/IP model is preserved and supports both smaller, business park buildings as well as very large buildings with a common system architecture N x T1 T1

WAN Aggregation to GbE MAN
Groom up hundreds of T1/E1 lines through T3s at POP Support any mix of T1/E1, T3, and Gigabit Ethernet Business Park Fiber Phone Cable LAN Cat 5 Multi-Tenant Commercial Building CPE Local ISP Metro POP Office Central Fast Ethernet GbE N x T3 Alpine 3808 with GbE and T3 configuration T3 Alpine 3804 with T3 configuration N x T1 T1 and VDSL T1 Router Gigabit Ethernet MAN SIMPLIFIED IP/ETHERNET SERVICE MODEL Service Providers need a platform that can deliver a robust subscriber service model that guarantees subscriber isolation and privacy while enabling the application of per-subscriber bandwidth management and traffic prioritization. Service Provider’s also need to provide IP address management and other value added IP services such as network filtering and security. Extreme Networks’ Ethernet Everywhere architecture delivers all of these features using a simple Layer 2 simple deployment model that takes minutes, not days, to configure. Extreme’s Ethernet Everywhere approach preserves native Ethernet framing over traditional WAN links, eliminating the arduous and complex task of configuring PVCs, that is typical with solutions based on Frame Relay or ATM in the WAN. Alternatively where other vendor’s aggregation routers are used in the POP, Extreme offers two equally simple configuration options: a switched / routed model and a fully routed model, just like having a traditional full-featured IP router at the edge. The GigaSLAM is the first solution that enables Service Providers to provision wholesale and retail broadband IP services both quickly and cost-effectively. RISER INDEPENDENT HIGH SPEED ACCESS The GigaSLAM lets Service Providers mix and match Long-range Ethernet over existing CAT 3 and qualified CAT 1 or 2 phone wiring using VDSL technology, with traditional Ethernet over CAT 5 or fiber, all in the same chassis. The IP/Ethernet provisioning model can be applied consistently regardless of the building topology or type of cabling available. This eliminates the complexity of implementing multiple provisioning models depending on the building. With a range of Alpine switch platforms to choose from, a GigaSLAM configuration can scale from 8 to 56 Long-range Ethernet ports (Ethernet over VDSL) and even higher density with a combination of Long-range Ethernet and traditional copper or fiber Ethernet ports. SCALABLE WAN CONNECTIVITY TO THE POINT OF PRESENCE A GigaSLAM configuration can be configured with a flexible array of connections back to a service provider’s point of presence (POP), to provide any desired bandwidth between Mpbs and 45Mbps. The T1 and T3 WAN interface modules support Point-to-Point Protocol (PPP)and Multi-link Point-to-Point Protocol (MLPPP) using either routed IP or switched Ethernet provisioning models over multiple bonded T1 channels. In addition a Gigabit Ethernet module is also available for direct connection to a Gigabit Ethernet metropolitan network. Together, these WAN interfaces provide the most comprehensive range of options in the access network. TRAFFIC ENGINEERING AND PER-SUBSCRIBER PROVISIONING Sophisticated traffic engineering provides the IP Quality of Service control, to satisfy the demands of real-time voice and video applications with enforceable bandwidth and latency guarantees. In addition, service providers can define bi-directional minimum and maximum bandwidths on a per subscriber basis. Service providers can also over-provision the network allowing each subscriber to burst above minimums on an “as-available” basis. Unlike traditional DSLAMs that are no more than access concentrators, the GigaSLAM combines powerful hardware-based packet classification with layer 3 routing and traffic engineering – all made possible by a multi-gigabit switching fabric. This provides the scalability and raw packet forwarding performance to sustain per-subscriber bandwidth slicing from 200K up to 100 Mbps and differentiated service levels for any number of subscribers

Ethernet Access: FTTH/FTTC/FTTB
Riser-independence: CAT 3, 2, m VDSL CAT 3, m TX Fiber ,200m FX IAD CPE Fiber Phone Cable Ethernet Everywhere Performance Everywhere L3 Ethernet Switch CAT5 MAN / WAN L3 Ethernet Switch

Converged IP Telephony in the WAN
TDMoIP: A quick way to show ROI Devices that convert ALL voice and SS7 signaling into Ethernet packets Unique UDP socket numbers Two ports but two applications on the same VLAN Get dedicated b/w via Policy based QoS VoIP: Slowly but surely Uses protocols like H.323 and/or SIP (Session Initiation Protocol) Once again need L3/L4 packet classification capability for toll quality experience Head Office PSTN local PSTN local Branch Office VoIP GW E1/ T1 10/100 E1/T1 E1/T1 PSTN Long Distance PBX PBX WAN LAN LAN E1/T1, n*E1/T1, E3/T3, GbE

SONET and WDM Where Needed
1 fiber 8 full-duplex Gigabit channels 10 Gig Ethernet using WDMi A cool way of doing WDM Black Diamond – available 5 Gig Ethernet using WDMi 4 channels over one fiber Mates with Black Diamond SONET – OC3, OC12 For Black Diamond Ethernet or IP over SONET OC3 available now OC12, OC-48, OC-192 WDMi Module in the BlackDiamond 6808 or 6818 switch 1 fiber Single-mode fiber pair In case more than 1 GE is needed on a pair of Fiber, Extreme uses WDM to multiplex multiple channels on a pair Fiber. Extreme’s implementation is “Single Working Fiber” which means that a single fiber can actually carry full duplex traffic. The pair of fibers can be split to form 4 Gbps rings or can be run in parallel to form 8 Gbps rings. Gigabit Ethernet SONET/ SDH Metro POPs

Metro Access: Ethernet/WDM
Tall Building (Fiber + CAT5) ISP Metro-POP WDM/Ethernet MAN Ring CPE GbE Metro DWDM GbE Backhaul Metro DWDM ‘Net 32, 64 , 128…. Lambdas Metro DWDM Metro DWDM Office Park (VDSL, CAT5) SONET ADM SONET ADM PoS OC-3 or OC-12 PoS OC-3 or OC-12 OC-48 (Future) CPE CPE

Leveraging SONET/SDH in Metro
Enterprise/MTU connectivity to Metro SONET/SDH ring OC-3c, OC-12c or OC-48c Point-to-Point protocol (RFC 2615) L1-L4 Traffic Classification Capability Rate shaping prior to getting onto the metro ring SONET/SDH Ring SONET ADM WAN POP WAN DWDM WAN Edge WAN Core OC-3c or OC-12c PPP with The ability to rate shape Enterprise Ethernet Network

Service Provider PoPs Peering/Border Layer Aggregation Layer
WAN DWDM WAN Core GbE OC-12c PoS with PPP/BCP OC-3c ATM with RFC 1483/2684 Peering/Border Layer Aggregation Layer Distribution Layer

IDC Design With Revenue On Mind
Metro/Transit Network Internet Co l o c a t I n Peering/Border Layer Load Balancing Firewalls Caching Aggregation Layer Distribution Layer Load Balancing Single Co-Lo Cage M S P SSL Acceleration Firewalls Caches Load Balancing ‘NEW’ Way Switch Servers ‘OLD’ Way

Summit-Px1 Specifications
Performance No CPU processing in any data path Gigabit line rate 250K Connections/sec Layer 7 can be enabled without performance penalty Capacity 64K Virtual IP Addresses (VIPs) 64K Real Servers 1.9 Million Active Sessions 1 Million “URL Switching” pattern rules

MPLS Metro L2/L3 Transparent LAN Services Delivery Architecture
Access Ring MPoP GigaPoP Highly-scalable Metro Core (MPLS Switched / IP Routed) MPLS TLS Tunnel “martini-draft” (Differentiated Service Classes & Restoration via RSVP-TE) IP Networks (Internet) & Content Providers

MPLS Metro Network Services Model
Software Redundant Port EAPS CE CE Metro Access CE CE PE PE Metro Core Metro Core P PE PE P MPLS Domain IP Networks WAN P P Link Aggregation PE Metro Core PE PE Metro Core PE CE CE CE CE Enterprise Network Enterprise Network CE: Customer Edge PE: Provider Edge P: Provider

Key Benefits of Extreme MPLS
Provides point-to-point and multipoint VPN capability, improving scalability in Metro networks – and simplifying configuration. Centralized Network Processor based implementation provides MPLS capability on all blades, and the flexibility to implement GRE and other protocols. Traffic Engineering and fast failover capabilities provide a more robust network than possible at Layer 2. Avoids use of Spanning Tree and other Layer 2 loop prevention protocols – which can be difficult to manage in large networks. Support for Jumbo packets

Integrated Ethernet Metro/Access N/W
Internet Data Center GbE Metro Ring (WDMi - 4/8ch cWDM) SONET/SDH Ring GbE N x T1/E1 Enterprise Fiber Phone wire Cat 5 MTU / MDU CPE (EAPS - Ring Protection) 10GbE Ring POS OC-3 OC-12 OC-48 GbE or MPLS Business Park ISP POP Exchange Metro POP T3 10 CLEC Bldg LAN Ethernet Everywhere Extended into the Metro Switched Ethernet / IP Services

Extreme Networks product portfolio

Summit Series L2 Switch L3 Switch Proxy Switch Summit 24e2
Summit GbX(Repeater) L3 Switch Summit Chipset Summit 24/48 i Chipset Summit 48si, 48i, 1i, 5i, 7i, Alpine, BlackDiamond Others Summit 24e3 Proxy Switch Summit Px1, PxM

Alpine 3808, 3804, 3802 Platforms Alpine 3808 Alpine 3804 Alpine 3802
1 slot for SMMi 8 slots for I/O modules 12 RU height, only 12” deep 64 Gbps non-blocking fabric Alpine 3804 4 slots for I/O modules 6 RU height, only 12” deep 32 Gbps non-blocking fabric Alpine 3802 Integrated SMMi 2 slots for I/O modules 3 slots in extended mode 4 RU height, only 12” deep 16 Gbps non-blocking fabric

Alpine 3808, 3804, 3802 Features High redundancy and reliability
Dual load sharing power supplies Hot swappable I/O modules and fan tray Dual ExtremeWare images & configurations Specialized interface modules GBICs - 70 Km, WDMi - 35 Km Ethernet over VDSL Legacy WAN interfaces High density, low profile 12U (3808), 6U (3804) or 4U (3802); 12” deep 32-port 10/100BASE-TX, 24-port 100BASE-FX 4-port 1000BASE-SX or LX, 1000BASE-T 4-port T1 WAN, 4 port E1 WAN, 1-port T3 WAN 8-port Ethernet over VDSL Performance – Gbps 12-48 Million pps

The Industry-leading BlackDiamond 6800 Series Switches
64 Gbps switching and routing capacity 4 10GbE ports BASE-X ports 336 10/100BASE-TX ports 16 OC3/STM-1 PoS or ATM ports 8 OC12/STM-4 PoS ports BlackDiamond 6808 128 Gbps switching and routing capacity 8 10GbE ports BASE-X ports 672 10/100BASE-TX ports 32 OC3/STM-1 PoS or ATM ports 16 OC12/STM-4 PoS ports BlackDiamond 6816 256 Gbps switching and routing capacity 16 10GbE ports BASE-X ports 1,440 10/100BASE-TX ports 64 OC3/STM-1 PoS or ATM ports 32 OC12/STM-4 PoS ports This is an overview of the BlackDiamond 6800 switch, which we introduced in September Since then, the BlackDiamond 6800 has led the market in delivering wire-speed switching and IP routing with the highest levels of fault tolerance for switch management and backplane switch fabric as well as power, fan system, and interface modules. The goal of our current developments for BlackDiamond are to increase its capability as a GbE aggregator in both Enterprise and service provider networks as well as its capability to deliver high-density Fast Ethernet switching and routing in service provider co-location networks where advanced features like server load balancing and port redirection.

Factors across the BlackDiamond 6800 Series
BlackDiamond 6804 BlackDiamond 6808 BlackDiamond 6816 Switch Fabric 64 Gbps 128 Gbps 256 Gbps I/O Slots MSM Slots Redundant PS Yes, hot-swappable Yes, hot-swappable Yes, hot swappable ExtremeWare Yes Yes Yes 10/100 port density GbE port density 10G port density Dimensions (H) 19.25” (11 RU) (H) 26.25” (15 RU) (H) 61.25” (35 RU) (W) 17.32” (W) 17.32” (W) 19” (D) 19” (D) 18” (D) 18”

Modules for the BlackDiamond 6800 Series
Management Switch Fabric Modules Fast Ethernet Modules Gigabit Ethernet Modules 10 Gigabit Ethernet Module – LR now, Xenpak future Wavelength Division Multiplexing Module Accounting and Routing Module MPLS Module ATM Module Packet-over-SONET Module

GbE to 10GbE Comparison 1 Gigabit Ethernet 10 Gigabit Ethernet
Both Half & Full Duplex Full Duplex Only Support Fiber & Copper Media Fiber Only Auto-negotiation Speed & Duplex in Copper Duplex only in Fiber No Auto-negotiation Support LAN up to 5 km Support LAN & WAN interface Both up to at least 40 km Leverage Fiber Channel Optics Create New Optics from Scratch Re-use 8B/10B Coding New 64B/66B Coding

10GbE Interface Nomenclature
Three part suffix Medium type S = Short wavelength (850nm) L = Long wavelength (1310nm) E = Extra long wavelength (1550nm) Coding Scheme X = 8B/10B coding (LAN PHY) R = 64B/66B coding (LAN PHY) W = 64B/66B + “Simplified” SONET encapsulation (WAN PHY) Wavelengths 1 = Serial (not required as serial is implied) N = number of wavelengths (4 for WWDM) Examples 10GBASE- LX4 = Long wavelength, 8B/10B coding (LAN PHY), 4 wavelengths 10GBASE-EW = Extra long wavelength, WAN PHY, 1 wavelength (serial)

“GBIC-like” Optical Inserts for 10GbE
10GbE equivalent of GBICs Industry Consortium lead by Agere and Agilent Extreme Networks is an active member of XENPAK Xenpak inserts likely won’t be available until Mid 2002 Highlights of the Xenpak pluggable optics Supports all IEEE 802.3ae optical interfaces Four wide XAUI interface Hot Pluggable SC duplex fiber optic connector Industry standard 70 pin electrical connector

10GbE Applications Enterprise Service Provider
Gigabit Ethernet (GbE) bandwidth aggregation High speed link between buildings Enterprise “campus” MAN supporting multiple locations Support for high-bandwidth applications: imaging, CAD/CAM, storage, computer modeling etc. Service Provider High speed connection between Point of Presence (PoP) No longer need GbE link aggregation Helps relieve fiber exhaust Connection to DWDM equipment For ultra high bandwidth needs

10GbE in the Campus LAN 10GbE Links Between buildings Switch to switch
Campus B Campus A 10GbE Links Between buildings Switch to switch Switch to server 10GbE 10GbE 10GbE 10GbE Internet Extranet Server Farm Data Center

BlackDiamond 10GbE Product Roadmap
Single I/O slot module for BlackDiamond chassis One 10GbE port per module No chassis upgrade required! Supported by current MSM64i management modules Compatible with all BlackDiamond I/O modules Uses Extreme Developed MAC ASIC Name* Distance Product Availability 10GLRi 0 - 10km 10GBASE-LR Module Q2CY02 10GXi** All XENPAK Pluggable Optics Q4CY02 * Please note this roadmap is as of January 2001 and is subject to change ** WAN PHY will be supported as a XENPAK pluggable

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新世代骨幹網路趨勢 “Building Metro Networks” Offering Ethernet Services

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新世代骨幹網路趨勢 “Building Metro Networks” Offering Ethernet Services

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