Presentation Transcript

1. Introducing qfabricVõrguvara Spring Summit 2011

   Jani Ripatti Systems Engineer Juniper Networks Date 05/05/2011
2. QFabric: Using simplicity to solve the toughest networking problems Occam’s Razor: When faced with alternatives, the simplest choice is usually correct Agenda Why a Fabric QFabricArchitecture Timing and Direction
3. The 2 roles of IT infrastructure Clients Global High-Performance Network Data Centers Mobile Home Branch Clouds Application Services and the Data Campus Mobility Connecting Users to App Services
4. THE REST OF THE DATA CENTER HAS ADVANCED DRAMATICALLY IN RECENT YEARS THE DATA CENTER NETWORK HAS NOT EVOLVED, AND IS NOW AN INHIBITOR “Networking has not progressed and is now a barrier slowing the pace of innovation in the rest of thedata center.” To From Applications Software Services On-Premise Apps Servers/Compute Virtualized Workloads Dedicated Servers Rigid, legacy model of I.T. Flexible, virtualized model Storage Shared Storage Dedicated Storage Network Network Layers of Complexity
5. the Economics of the Data center Complexity and Operating Costs Capital Savings Source: IDC
6. Changing roles of the network Traditional role – connecting users North-South traffic Latency Tolerant New role – connecting devices East-West traffic Ideally one hop away Latency Sensitive Newest role – foundation of the cloud Any-to-any connectivity Ideally everything is interconnected and always one hop away Application running
7. THE TYRANNY OF TREES Location matters in a tree architecture Typical tree configuration Bubbles Optimal performance VM OneHop
8. THE TYRANNY OF TREES Location matters in a tree architecture Typical tree configuration Appliances and VLANs Shadows VM
9. Complexity – Metcalf’s revenge TooComplex Solve for the smallest N possible Devices Interactions 400 10,000 N=1 Interactions Complexity 300 7,500 N*(N-1) 2 No. of Interactions =*N = No. of managed devices 200 5,000 ManagedDevices 100 2,500 4000 5000 6000 0 1000 2000 3000 No. of Ports
10. What does anideal fabriclook like?
11. TRANSFORM THE NETWORK One Network Flat, any-to-any connectivity
12. TRANSFORM THE NETWORK One Network Flat, any-to-any connectivity VM Key resourcesare one hop away Key resourcesare ALWAYS one hop away Locality should not matter in a virtualized data center
13. TRANSFORM THE NETWORK One Network Flat, any-to-any connectivity Single device N=1 Switch Fabric Data Plane Flat Any-to-any Control Plane Single device Shared state Switch Fabric Performance and simplicity ofa single switch Single switch does not scaleSingle point of failure
14. TRANSFORM THE NETWORK One Network Flat, any-to-any connectivity Single device N=1 Switch Fabric Data Plane Flat Any-to-any Control Plane Single device Shared state A Network Fabric has the…. Performance and simplicity ofa single switch Scalability and resilience of a network And the…
15. Juniper has The Answer: 3-2-1 Legacy three-tierdata center Juniper two-tier data center Juniper’s data center fabric 3. 2. 1. Up to 75% of traffic W E
16. transform the network 3 3 2 1 The legacy network, 3 tiers 3 Ethernet Servers FC Storage NAS FC SAN
17. DELIVER TODAY – 2 tiers 3 2 2 1 Scaling realities 1GbE access 400 servers in 1 hop 6K-9K servers in 2 tiers 10GbE access 1-2 racks in 1 hop 480 servers in 2 tiers MX Series MX Series RemoteData Center EX8216 SRX5800 EX4200 Servers FC Storage NAS FC SAN
18. DELIVER soon – 1 tier 3 2 2 1 MX Series EX8216 SRX5800 EX4200 Servers FC Storage NAS FC SAN
19. DELIVER soon – 1 tier 3 2 1 1 SRX and vGW Inter-DC connectivity MPLS and VPLS Virtual Control Single, scalable fabric MX Series Remote Data Center SRX5800 Servers FC Storage NAS One large, seamless resource pool
20. 3 years in development 1 million man hours $100s of millions invested Over 125 patents pending
21. A Revolutionary New Architecture Design Goals Flat, resilient fabric Everything is one hop away Scale without complexity The ability to add capacity without adding operational complexity N=1
22. DATA PLANE IN A SINGLE SWITCH Data Plane 1. All ports are directly connectedto every other port 2. A single “full lookup” processes packets
23. CONTROL PLANE IN A SINGLE SWITCH Control Plane Single consciousness Centralized shared table(s) have information about all ports Management Plane All the ports are managed from a single point
24. SINGLE SWITCH DOES NOT SCALE Ports can be added to a single switch fabric. …but eventually it runs out of real estate. After this, the network cannot be flat. Sacrifice simplicity or…change the scaling model Choice:
25. Data Plane Scaling the DATA PLANE QF/Interconnect QF/Node So, we separate theline cards from the fabric. And replace the coppertraces with fiber links. For redundancy addmultiple devices.
26. Data Plane Scaling the DATA PLANE QF/Interconnect QF/Node So, we separate theline cards from the fabric. And replace the coppertraces with fiber links. For redundancy addmultiple devices. Enable large scale.
27. Data Plane Scaling the DATA PLANE QF/Interconnect QF/Node All ports are directly connectedto every other port A single “full lookup” at the ingress QF/Node device Blazingly fast: Always under 5us 3.71us (short cables) QFabric is faster than any Ethernet chassis switch ever built
28. Qfabric Convergence Storage SAN Convergence FC FCoE Transit Switch Converged Enhanced Ethernet – Standards based (CEE or DCB) Provides Perimeter protection with FIP Snooping. FCoE-FC Gateway Ethernet or Fibre channel gateway with FC ports atthe QF/Node Interoperates withexisting SANs FCoE FCoE Servers FCoE FC Servers FCoE
29. QFabric HARDWARE QF/Interconnect Connects all the QF/Node devices QF/Node Media independent I/O ToR device.Can be run in independent or fabric mode QF/Director 2 RU high fixed configurationX86 based system architecture
30. QFabric hardware – INTERCONNECT QF/Interconnect 21 RU high 8 slot chassis 128 QSFP 40G ports – wire speed 8 fabric cards (10.24Tbps/chassis) Dual redundant control board Redundant AC power supply Front to back air flow Front View Rear View
31. Fabric hardware – QF/Node QF/Node Front View 1 RU high fixed configuration 48 SFP+/36 SFP ports 12 FC capable (2/4/8G) ports 4 * 40G fabric uplink ports (can also operate in 10G mode) Redundant AC power supply Front to back air flow Rear View Will also operate as a Stand Alone Switch QFX3500 4 QSFP+ ports 48 SFP+/36 SFP ports 12 FC Capable ports
32. QFabric hardware – Director QF/Director 2RU device Has GE ports to connect to QF/Node and interconnect devices Based on x86 architecture
33. QFABRIC AT A GLANCE Runs Junos Scalability 10’s to 6000 ports Rich functionality Performance Lossless DCB compliant <5us, Low jitter Storage Simplicity FCoE gateway and transit N=1 Designed for Modern DC Seamless Layer 2 and Layer 3 Virtualization andConvergence Flexible VLAN capability
34. Migrating to Qfabric MX Series QFabric EX8216 SRX5800 EX4200 QFX3500 4 Pod 1 Pod 2
35. multiple port configuration comparisons 500 ports1 1000 ports1 3000 ports2 6000 ports2 17% fewer devices 45% less powerSavings: $28K/Yr 50% less floor space 74% fewer links 3-6x faster Mgd. Devices1 vs. 18 22% fewer devices 46% less powerSavings: $33K/Yr 50% less floor space 80% fewer links 3-6x faster Mgd. Devices1 vs. 32 30% fewer devices 73% less powerSavings: $180K/Yr 85% less floor space 82% fewer links 12-16x faster Mgd. Devices1 vs. 98 L2 & L3* 33% fewer devices 77% less powerSavings: $360K/Yr 90% less floor space 85% fewer links 12-16x faster Mgd. Devices1 vs. 193 L2 & L3* 1: Multi chassis LAG like 2: TRILL like *: Non-Blocking
36. Timing and Direction QFX3500 shipping QFabric is in customer trials QFabric ships in Q3 2011 Timing Future directions Scale up – Mega-Fabrics10s of 1000s of 10GbE ports, 100s of thousands ofVirtual Ports Scale down – Micro-Fabrics50-750 ports 40 GbE and 100 GbEaccess speeds Provide a fully blended fabric with full fibrechannel services