what’s happening in the networking landscape? · scale-out fabric architecture the...
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What’s happening
in the Networking Landscape?An overview on contemporary merchant
switching silicon and SDN landscape
Paolo Bianco
GCN Systems Engineer
[email protected] Windows Server: Power your business
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2
º
25 years ago: Compute paradigm shift
Mainframe model
Proprietary CPUs
(e.g. SPARC, PA-RISC,
Alpha)
Proprietary OS
(e.g. Solaris, HP-UX, Ultrix)
Limited apps
Proprietary
architectures & mgmt
tools
X86 Servers
model
Application ecosystem
Orchestration / automation
for dist computing
Industry standard
(X86 CPU)
Standard OS / hypervisors
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Traditional networking
Proprietary ASICs
Proprietary OS
(e.g., Cisco IOS, Jun OS)
Hundreds of protocols
Proprietary architectures
& mgmt tools
Open Networking
Networking OS
SDN / NVO controller
Standard orchestration
and automation tools
Merchant silicon
Now: Networking paradigm shift
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Contemporary
Merchant Silicon
Landscape
Windows Server: Power your business
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Traditional Approach: Bottom-Up network design
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New Approach: Top-Down network design
ProgrammableASIC
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The Programmable Switching Silicon Landscape
• One big Player: Broadcom
– 95% of market share in 2015
– Broader Ecosystem
– First with fastest Programmable Switch Silicon (12.8TB/s)
• Some Emerging Contenders
– Cavium
› First with 25GbE
› XPA programmable architecture on all DC chipset
– Barefoot
› Innovative approach
› PISAprogrammable architecture
› HW+SW «Weapon System» with P4
– Innovium
› Very New company
› Now Sampling 12.8TB/s Teralynx chipset
› Innoflex programmable architecture
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Broadcom Ecosystem
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Broadcom Offering
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Trident 3 chipset Architecture
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Cavium - XPliant
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Broadcom Vs XPliant
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Innovium Teralynx
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Domain Specific «Weapon Systems»
GraphicsGraphics
SignalProcessing
Machine Learning Networking
DSP
Signal
Java/C++
Compiler
Computers
CPU DSP
Signal
OpenCL
Compiler
GPU
Signal
Matlab
Compiler
DSP
Signal
TensorFlow
Compiler
TPU
Signal
?
Compiler
?
>>>
?
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P4.org – P4 Language Consortium
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Barefoot Tofino
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PISA: Protocol Independent Switch Architecture
9
Ingress EgressBuffer
Pro
gra
mm
able
Pars
er
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PISA: Protocol Independent Switch Architecture
Mix of SRAM and TCAM for: lookup tables, counters, meters, Bloom filters
ALUs for: Standard Boolean andArithmetic Operations & add/delete fields, hashes
Recirculation
Programmable Packet Generator
Pro
gra
mm
able
Pars
er
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Copyright © 2016 - Barefoot Networks
Tofino Block Diagram
Rx MACs10/25/40/50/100
Ingress
PipelineTx MAC
10/25/40/50/100
Control & Configuration
Reset /
ClocksPCIe
CPU
MACDMA
engines
Rx MACs10/25/40/50/100
Ingress
PipelineTx MAC
10/25/40/50/100
Rx MACs10/25/40/50/100
Ingress
PipelineTx MAC
10/25/40/50/100
Rx MACs10/25/40/50/100
Ingress
PipelineTx MAC
10/25/40/50/100
Traffic
Manager
Egress
Pipeline
Egress
Pipeline
Egress
Pipeline
Egress
Pipeline
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SDN for Merchant Silicon Landscape
Windows Server: Power your business
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What is Software Defined Networking?
• A software-defined networking (SDN) architecture defines how a networking and computing system can be built
using a combination of open, software-based technologies and commodity networking hardware that separate
the control layer and the data layer of the networking stack.
• Open Networking is the foundation for SDN (but is not SDN!)
• In the SDN architecture, the splitting of the control and data forwarding functions is referred to as
“disaggregation” because these pieces can be sourced separately, rather than deployed as one integrated system.
In turns: SDN focuses on network stack disaggregation
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Implications of SDN
Controller (N.O.S.)
ApplicationsApplicationsApplications
SouthboundAPI
Switch O.S
Switch HW
Switch O.S
Switch HW
Switch O.S
Switch HW
Global View
Programmatic
Control
Network O.S.
ASIC
ApplicationsApplications
Network O.S.
ASIC
ApplicationsApplications
Network O.S.
ASIC
ApplicationsApplications
Current Networking SDN Enabled Environment
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From Network of boxes to Networked fabric
Traditional Approach
“Network of boxes”
Modern Approach
“Networked fabric”
• Deployment
• Configuration prone to error
• Time consuming configuration
• Complex topology validation
• Management
• Box by box visibility
• Device level troubleshooting
Deployed, managed,
optimized, and automated
as a single entity
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Vendor EcosystemContemporary SDN Ecosystem (not necessarily complete!)
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Big Switch Networks Portfolio
Networking
Architecture
(Hyperscale
Inspired)
SDN Controller
Software
Open Networking
Hardware
Scale-out Fabric
Architecture
The Next-Generation Data Center Networking CompanyBig Switch
Networks
Products/
SolutionsPervasive
Visibility
Big
Monitoring
Fabric
DMZ
SecurityVMware SDDC(vSphere, NSX, vSAN)
Big
Cloud
Fabric
OpenStack(NFV/Private Cloud)
Containers(Docker, Kub, Mesos, RH)
Cloud
Monitoring
Company
Mission
Next-Generation
DC switchingNext-Generation
DC security and monitoring
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• Pair of Hardware Controllers
• 64 racks
• Maximum 16 Spine Switches
• 10G spine connections to Leaf
Switches
• 40G breakout to 4 * 10G on Dell
Z9100-ON (due to breakout
capabilities available on all ports)
• 32 * 4 = 128• 128 Leaf Switches
• 2 per rack, 64 racks: 2 * 64 = 128
• Whilst 16 Spine Switches can be used, you
must remember that each Spine Switch
must connect to every Leaf Switch.
Therefore each Leaf Switch would require
16 Spine to Leaf connections
Big CloudFabric
Controllers
RACK 64RACK 63RACK 3RACK 2Service Rack1
Big Cloud P Fabric
….. Up to * 16
Total 10G Leaf Compute/Service connectivity:
48 * 64 = 3072 (MLAG)
Big Cloud Fabric Maximum DeploymentMaximum deployment for a single BCF Pod
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POD-Level deployment in Existing Data Centeroperate with legacy
Data
Center
Core
Routers
Internet/WA
N
Big
Cloud
Fabric
Controll
er
RACK 1
RACK 2
Servic
e
Rack
Big CloudFabric
Big
Cloud
Fabric
Controll
er
RACK N-1 RACK
N
RACK 1
RACK 2
Servic
e
Rack
Big CloudFabric
Big
Cloud
Fabric
Controll
er
RACK N-1 RACK
N
RACK 1
RACK 2
Servic
e
Rack
Big CloudFabric
DC2
(Remote)
BG
P
BG
PBG
P
VXLAN
VX
LAN
Legacy Network(Box-by-Box)
L3
L2
L2
RACK 1 RACK 2 RACK 3 RACK 44
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Adaptive
Cloud Fabric
Pluribus Adaptive Cloud Fabric
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Hosts
Multi-chassis
LAG
Existing
Network
Pluribus HA
Clusters
Access
Switches
Hosts
Existing
Network
Access
Switches
Adaptive
Cloud Fabric
Logical
Equivalent
Underlay
Geographically dispersed sites
Overlay
Overlay
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Fabric Manager
29
Insight Analytics
Pluribus UNUM™ Unified Management, Automation and Analytics
Virtual appliance
Device & Fabric
Management
Automated
Provisioning
Topology
VisualizationAnalytics & Performance
Management
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Thank you
Windows Server: Power your business