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Copyright 2007 Force10 Networks
Extending Ethernet with Optical Networking
Debbie [email protected] 9, 2007
Copyright 2007 Force10 Networks
Special Note Regarding Forward Looking Statements
This presentation contains forward-looking statements that involve substantial risks and uncertainties, including but not limited to, statements relating to goals, plans, objectives and future events. All statements, other than statements of historical facts, included in this presentation regarding our strategy, future operations, future financial position, future revenues, projected costs, prospects and plans and objectives of management are forward-looking statements. The words “anticipates,” “believes,” “estimates,” “expects,” “intends,” “may,” “plans,” “projects,” “will,” “would” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Examples of such statements include statements relating to [products and product features on our roadmap, the timing and commercial availability of such products and features, the performance of such products and product features, statements concerning expectations for our products and product features [and projections of revenue or other financial terms]. These statements are based on the current estimates and assumptions of management of Force10 as of the date hereof and are subject to risks, uncertainties, changes in circumstances, assumptions and other factors that may cause the actual results to be materially different from those reflected in our forward looking statements. We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements and you should not place undue reliance on our forward-looking statements. In addition, our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures or investments we may make. We do not assume any obligation to update any forward-looking statements.
Copyright 2007 Force10 Networks
We’ve come a Long Way
Back in the old days...– E.g. in 1998/1999 when the Internet2 Abilene
network was 1st developed...– Optical Transport was provided only by Carriers
or Service Providers– DWDM (Dense Wave Division Multiplexing)
Systems which multiplexed multiple optical signals – wavelengths/lambdas – were point-to-point, and designed to carry SONET (Synchronous Optical Network) traffic, such as OC-48 (2.5 Gbps) or OC-192 (10 Gbps).
– Voice network repurposed for data.– Topologies & links (circuits / lambdas) were
hard wired and set in stone.– Carriers didn’t understand how anyone could
need a WHOLE OC-192 (10 Gbps) circuit!– Expensive OC-192 (SONET) router interfaces
were required.
Copyright 2007 Force10 Networks
Changes – driven by R&E comm.
Support for 10 GbE circuits (LAN PHY versus WAN PHY)– UltraScienceNet got OC-192 lambdas, then used Force10
ethernet switches to bridge WAN PHY to LAN PHY – the “on ramp”
Used to be if you wanted to transport native 1 GbE, you could possibly shoe-horn 2 x GbE into an OC-48 (2.5 Gbps channel). Very wasteful.
Internet2 GigaPOPs and backbones are running their own DWDM / Optical Transport backbones. Want synergies with their Ethernet infrastructure.
HOPI project – Hybrid Optical & Packet Infrastructure– Dynamic capacity, integrated capacity.
GLIF – Global Lambda Integrated Facility
Copyright 2007 Force10 Networks
Reliability – growing up
Core research, Critical applications, Voice/Video-over-IP, all relying on your networks– Ethernet switch/routers have
become more resilient– Built in redundancy, distributed
hardware, modular software
Optical Transport– No longer expects a SONET layer
to provide redundancy & failover.– Supports automatic rerouting &
restoration, high availability
Copyright 2007 Force10 Networks
E-Series Resiliency Architecture
Resilient Hardware Resilient Hardware ArchitectureArchitecture
Link ResiliencyLink Resiliency
Protocol ResiliencyProtocol Resiliency
Manageability and ServiceabilityManageability and Serviceability
HA Software ArchitectureHA Software Architecture• Modular OS (NetBSD)• 3 CPU (L2, L3, CP)• Line Card CPU• HA Software
• Hardware Redundancy• Distributed Forwarding• Hitless Failover• DoS Protection
• LAG• ECMP• LFS/WAN PHY• BFD
• OSPF/BGP Restart• RSTP, MST• VRRP
• Hitless Software Upgrade• Hot Swap• Logging and Tracing• One Software Image
Copyright 2007 Force10 Networks
Capacity – Room for Growth
R&E driving massive use of bandwidth
Future-proof networks
Optical Transport provides enormous room for growth – to add wavelengths/lambdas, support additional circuits, aggregate all types of traffic
Ethernet switch/routers support 90-port GbE cards, 16 port 10GbE cards, with higher densities coming.
Copyright 2007 Force10 Networks
OTN
Optical Transport Network (OTN) is composed of a set of Optical Network Elements connected by optical fiber links, able to provide functionality of transport, multiplexing, switching, management, supervision and survivability of optical channels carrying client signals. Defined in ITU (International Telecommunications Union) standard G.709 & related standards.
OTN is currently offered in three rates, OTU1,OTU2 and OTU3. (OTU = Optical Transport Unit).– OTU1 – approx 2.7 Gbps, designed to carry OC48.– OTU2 – approx 10.7 Gbps, designed to carry OC-192, or 10 GbE
WAN PHY. Can carry 10 GbE LAN PHY – overclocked/shoe-horned in.
– OTU3 – approx 43 Gbps, design for “40 Gbps” transport.
A little 10 GbE vs OTN mismatch, but we’ve made it work– E.g. Force10 E-Series 10 GbE ports are software selectable for
WAN PHY versus LAN PHY operation.
OTN products providing additional Ethernet options & Capabilities
Copyright 2007 Force10 Networks
Ethernet & OTN:Match made in Heaven?
Not initially...
But Ethernet and Optical Transport need each other, so they learned to get along and compliment one another
Copyright 2007 Force10 Networks
Ethernet Reach without Optical Transport
Will reach to local users, servers, storage, compute nodes.
Won’t even reach from San Diego to Pasadena. 10 GbE
– 15 m, CX4 cable– 300 m, MMF, SR optics– 10 km, SMF, LR optics– 40 km, SMF, ER optics– 80 km, SMF, ZR optics
1 Gb E– 100 m, Cat5 cable– 220 m, multi-mode fiber (MMF), SX optics– 10 km, single-mode fiber (SMF), LX optics– 80 km, SMF, ZX optics
Copyright 2007 Force10 Networks
Ethernet Reach WITH Optical Networking
To the Moon and Back!
OK... Not quite...but practically around the world.
