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Deployment Options for Avaya DToR

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  1. Deployment Options for Avaya DToR Paul Unbehagen Chief Architect @punbehagen Randy Cross Director, PLM @cross_randy

  2. Agenda • Introduction • History Discussion • A new DNA for the Data Center • Design around real traffic flows

  3. Once, Campus-class was good enough Evolution of the Data Center Traditional networks are designed for north/south traffic – ToR Switches interconnected by the Core or Aggregation… • 20-30 microseconds for every hop • Modern applications have an average of 8 transactions Rack 4 Rack 2 Rack 3 Rack 1

  4. Traffic patterns were traditional Evolution of the Data Center Traditionally: The North-South to East-West ratio has been 80:20 Top-of-Rack Switches Racked Servers • What this meant: • Application traffic traverses multiple Switch hops – Access / Core / ToR / Core / Access • Uplinks were more important than Inter-Rack capacity

  5. What’s the approach of the “Big 2”..? • Cisco’s Vblock “marketecture” was the first salvo • HP responded by purchasing 3COM/Huawei assets • Both offered “end-to-end” architectures • Server/Storage/ToR/EoR/Core • The explosion of Virtual Machines has changed everything • What’s next..? • Collapsed 2-Tier architecture and “Fabric” • Why..? • Better L2 scale, overcoming STP & VLAN limits • Scalable support for L3 & VRFs

  6. Spot the real difference between these two designs..? Cisco’s “Classic” Hierarchical Model Enterprise Campus Data Center Courtesy: Cisco Systems Data Center Architecture Overview Courtesy: Cisco Systems Enterprise Campus 3.0 Architecture All Access traffic flows via Aggregation/Distribution and/or Core

  7. Switch Clustering has done this for the last 12 years..! HP’s 2-Tier Network Design An Improvement..? 2-Layer may reduce cost, but all traffic still goes to Core

  8. Avaya Fabric DToRThe new DNA for your Data Center • Avaya Fabric Connect provides the new DNA for your Data Centre Network. • Enabling unparalleled scalability and low latency interconnect to address East-West traffic requirements • Fabric Connect Stacking supports 2-32 switches offering up to 512 10GE ports with 20Tbs Fabric. • Fabric Connect Mesh supports 4-480 switches offering up to 15,360 10GE ports with 262.5Tbs Fabric. Sidney Duffy Avaya Fabric Connect – the new DNA for your Data Centre Network

  9. Introducing the Virtual Services Platform 7000Overview & Highlights • Perfect for Today • Versatile support for 1 or 10 Gigabit Ethernet • Distributed Top-of-Rack delivers Industry’s fastest virtual backplane • Fabric networking delivered directly to the Server • Media Dependent Adaptor flexibility • Lossless hardware & software architecture • Front-back or back-to-front cooling • Small form-factor & energy-efficient • Future-Ready for Tomorrow • Seamless integration of 40/100G • Data Centre Bridging-ready to integrate Storage Convergence • Wire-speed performance • Delivering mass 1/10 Gigabit today • Optimizes application performance • Future-proofed for 40/100 Gigabit & Storage convergence (SDSN) Highlights

  10. Two Operational modes for true deployment flexibility Distributed Top-of-Rack Stack-mode DToR Structured Interconnect: 8 Switches (256 10GbE Ports & 5.12Tbps) Fabric-mode DToR Flexible Interconnect: up to 200 Switches (6,400 10GbE Ports & 112Tbps) Row A Row B Row C Row D From small to very large—D-ToR can handle it!

  11. Avaya Fabric DToRWinning on Throughput & Latency • Avaya Fabric Connect provides more throughput than competing solutions. • Competitors offer 128Gbps stacking or 4x40GE (160Gbps) links. • FI Stacking up to 20Tbs and Fabric Connect Mesh supports up to 262.5Tbs. • Avaya Fabric Connect provides lower latency than competitors. • “Ultra Low Latency” competitor provides7.9uS latency (ToR-Distribution-ToR) • Fabric Connect Stacking provides latency of 2.1uS – 5.3uS (4 hop maximum in stack of 8) Avaya Win Avaya Win

  12. Avaya Fabric DToRWinning on Price • Avaya Fabric DToR provides cost effective means to interconnect ToRsvs typical Fat Tree designs of 4 - 20x lower cost. • Typical Fabric Connect deployment costs with 640Gbps for $6,780 • 4 x 3m Fabric Connect cables (640Gbps) per VSP 7000 with MSRP $6,780. • Fabric Connect cables range from $995 for 0.46m to $8,995 for 100m. • Competing designs with 160Gbp from $27,150 - $142,150 • Competing ToR limited to 160Gbps due to 4 x 40GE ports per ToR. • Due to placement of ToR to Core or Distribution switches require longer cable runs • 8 x 40GBASE-SR4 @ $1,100ea + 8 x Fibre @ $250ea = $12,150 • Require 8 modular ports at costs from $1,875 ea to $ 16,250ea • Arista (standalone) $1,875/port • Cisco Nexus 7000: $9,940/port • Juniper (standalone) $2,306/port, QFX3008 $7,226 - $16,250/port • HP (no offering) Avaya Win Avaya Fabric Connect – the new DNA for your Data Centre Network

  13. VSP 7000 Fabric DToRFabric Interconnect Stacking • Fabric Stack Mode, in which up to 8 units create a DToR (distributed Top of Rack) delivering up to 5Tbps using two Fabric Connect cables in parallel between each switch. • For Fabric DToR Stack operation, the stack operates in the same manner as other Avaya stackable products and features many of the associated benefits of Stacking • Single IP Address Management for Fabric Connect Stack. • Hot Swap Unit replacement with AUR, DAUR, AAUR. • Hot Unit Insertion with NUQC. • Distributed uplinks with DMLT and LAGs. • For Fabric Connect Stack operation each pair of the Up/Down ports should be thought of as a single connection between each switch. • You will need 2 Fabric DToR Cables between each switch to form full adjacency and the top port on the Up must be connected to the top Down port on an adjacent switch and similarly for the bottom connector

  14. How to address the new traffic needs Distributed ToR Distributed ToR is specifically designed for east/west traffic – ToR Switches directly interconnected… DToR costs just 1 microseconds Switch hop Web VM Web VM App VM D/B VM

  15. VM Evolution – The Need For Scale & Flexibility Members of the same VM domain must remain in the same subnet Physical Servers Virtual Servers APPs I-P Per Rack APPs A-H Per Rack APP A APP B Rack 1 Rack 2 Rack 1 While application scale & server utilization is poor, network complexity is simple Server virtualization brings scale and efficiency to applications. VMs become essentially “jailed” and network flexibility is reduced. VM Mobility is seriously limited. What is the alternative…?

  16. Scaling Concerns ERS 8800 Fabric Connect Core VSP 9000 North-South/Core-ToR Interconnects VSP 7000 SDSN Distributed Data Center SDSN Distributed Top-of-Rack SDSN Stack-mode DToR Structured Interconnect: 8 Switches 256 10GbE Ports Fabric-mode DToR Flexible Interconnect: up to 200 Switches 6,400 10GbE Ports

  17. VSP 7000 Avaya Fabric Connect Fabric DToR Mesh • Avaya’s FI Mesh delivers unmatched scalability to address low latency East-West requirements in the Data Centre • Switches in the Mesh are managed through COM & VPS providing unified provisioning. • Fabric Connect Mesh is scalable from 4 to 480 switches per region. • Providing low latency fabric. • Fabric is scalable up to 262.5Tbps. • Extensible up to 15,360 10GE ports. • Designed to enable either 24/32/48/56/64 10GE ports per rack. • Fabric DToR ports interconnect each VSP7000: • Can use mix of different Fabric DToR cable lengths. • Optimum performance will be achieved when the same colour designated ports are connected to one another. Sidney Duffy Avaya Fabric Connect Mesh – Low Latency Data Centre Grade Fabric Scalable to 262.5Tbps

  18. VSP 7000 - VSP 9000Avaya Fabric Connect DToR Mesh • Extending the FI Mesh of the VSP 7000 can be easily achieved through adding VSP 9000 (or ERS 8800). • VSP 9000 are connected to the VSP 7000 via high speed connections to handle traditional North-South traffic. • VSP 9000 provide advanced services to the Fabric Connect Mesh. • Routing Services for Fabric Connect Mesh VSNs. • Connectivity between different Fabric Connect Mesh regions. Sidney Duffy Extending Avaya Fabric Connect Mesh with VSP 9000

  19. VSP 7000 Fabric DToRFabric DToR Mesh Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack

  20. VSP 7000 Fabric Interconnect MeshMesh Architecture Reference Rack Rack Rack Back Interconnect (240Gbps) Interconnect top switch in rack N to top switch in adjacent (N-1) rack Interconnect bottom switch in rack N to bottom switch in N+1 rack Red Interconnect (160-240Gbps) Interconnect top switch in rack N to top switch in adjacent (N+1) rack Interconnect bottom switch in rack N to bottom switch in N-1 rack Blue Interconnect (80Gbps) Interconnect 2 switches in same rack (could be leveraged for IST in future release) Interconnect top switch to top switch is adjacent row in DC Interconnect bottom switch to bottom witch is adjacent row in DC (The connection to adjacent rows are shown in parallel in this reference design. These connections could be run from top switch in switch in row N to top switch in row N-1 and then bottom switch in row N to bottom switch in row N+1) Logical Pod of 16 Racks (32 switches, 1024 10GE ports) 17.5Tbps Interconnect

  21. VSP 7000 vToR (Virtual ToR)Fabric DToR Stacking Reference • FI Stacking (10.1) ToR 32 Servers per Rack Non-Resilient Server connections 32 x10G ports per Rack / 256 10GE ports per Pod 5Tbps East-West Bandwidth

  22. VSP 7000 DToR Fabric DToR Stacking Reference • FI Stacking (10.1) • Switch Clustering (10.2) ToR Cluster 1 ToR Cluster 2 IST ` 32 Servers per Rack Dual Attached Fully Resilient 32 x10G ports per Rack / 512 10GE ports per Pod 10Tbps East-West Bandwidth

  23. Technology Evolution Completely unique solution to the real DC problem • A modern 3-D design, instead of the antiqued 2-D approach • From islands to virtual modularity • Meeting the traffic model of modern cloud computing • Bandwidth where you need it, when you need it • True, extensible virtualization for Networking, Compute, and Storage Unshackle the DC

  24. @cross_randy @punbehagen