1. v
Big Data with Cumulus
David Sinn
April 22, 2015

2. Cumulus Networks: Making Networks Accessible
Vision
 Bringing the Linux Revolution to Networking
Mission
 To enable high capacity networks that are easy to deploy
and affordable helping customers realize the full promise
of the software-defined data center.
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3. Big Data in the Data Center
Super-compute
 Clusters of x86 servers.
 Ultra-low latency
 Large scale east/west traffic
Distributed Storage/MapReduce
 Dynamic workloads, so locality is difficult
Costly Legacy Deployments
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4. Traditional BigData Deployments
Layer-2 based
 Constrained east/west
 High port costs
 Variable Latency
 Host resiliency demands
 Closed protocols
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5. L3: A better design
 ECMP based Fat
Tree
 East/west
bandwidth
 Better Failure
Handling
 Scalable: No
Bottlenecks
 Simple Feature Set
 Open Protocols!
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LEAF
SPINE

6. Big Data Improvements
Stop worrying about locality
 Full bandwidth is available between any pair of
servers
 Location becomes irrelevant for performance
 Keep replicas as far away from each other as
possible
Faster recovery
 Plenty of core bandwidth to re-replicate after failure
 Host HA becomes a lower level concern
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7. Unified Management
Converged administration
 Same automation tools for managing servers now
available for the network
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Layer 3 Fabric
Servers
Switche
s
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8. Cumulus Innovation Focus – Apps for the networking
infrastructure
Don’t re-invent the wheel, but smoothen the
ride
 ONIE – Unmanned Install
 ZTP – Zero Touch Provisioning
 PTMd – Cable fault detection
 Unnumbered Interfaces – IP management
 Network Virtualization – Minimize physical changes
 Dual Home hosts – Simplified Networks
8
hardware
Cumulus Linux
routing gangliabridging
hardware
operating system
app app app
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9. Automation Workflow
Installation Framework
 PXE & ONIE to install the OS’s
 Anisble to install the applications and configure the
nodes
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bare metal server
Server OS
app app app
BIOS and PXE
bare metal switch
Network OS
app app app
Boot Loader and ONIE
Similar to installing a server OS using PXE
Network OS
Boot Loader and
ONIE
boot into
Boot Loader and
ONIE
boot into
ONIE looks for and installs network OS image

10. Demo
Cumulus Customer
Workbench
 2-Spine + 2 Leaf
• OSPF Unnumbered with PTM
 2-Ubuntu Servers
• Hortonworks Hadoop
• HDFS & YARN
• Server 1: master + worker
• Server 2: worker
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11. Ansible
Example Automation Process
Network
 Define topology
 Install license
 Configure OSPF Unnumbered & PTM
 Start networking
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12. Ansible Continued
Server Setup
 Create users, setup networking
 Install packages and dependencies
 Deploy site specific Hadoop Config
 Start HDFS & YARN
Enjoy Your BigData Cluster
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13. Demo
Let’s switch to the demo
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14. The Data Center Network with Cumulus Linux
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Open AffordableResponsive
Unlock Your Choices.
 Disaggregation of hardware and software
 Choice of best-in-class platforms and
tools
 Inherently flexible – with no vendor lock-
in
 Vast resources in the Linux community
Serve the Business Better.
 Rapid, accurate services with automation
– provisioning in minutes instead of days
 Orchestration via server tools
 Accelerated innovation via DevOps, open
source, and broad solution ecosystem
Save as You Grow.
 Scalable, affordable capacity in layer 2,
layer 3 or layer 3 overlay networks
 >50% CapEx savings with industry-
standard hardware running Cumulus
Linux
 Opex savings through automation, use of
server tools and simpler expansion

15. © 2015 Cumulus Networks. Cumulus Networks, the Cumulus Networks Logo, and Cumulus Linux are trademarks or registered trademarks of Cumulus Networks, Inc. or its affiliates in
the U.S. and other countries. Other names may be trademarks of their respective owners. The registered trademark Linux® is used pursuant to a sublicense from LMI, the exclusive
licensee of Linus Torvalds, owner of the mark on a world-wide basis.
ThankYou!
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Unleashing the Power of Open Networking