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Confidential, PICA8 Inc.
State of SDN
Where Are the Hot Spots & Why?
![Page 2: State of SDN - SUCCESS Labsuccess.cse.tamu.edu/CoolSDN2014/ppt/CoolSDN14-Keynote.pdfState of SDN Where Are the Hot Spots & Why? Confidential, PICA8 Inc. Zetabytes of data More Challenges](https://reader034.vdocuments.us/reader034/viewer/2022042222/5ec90b3d1e41154d566e34a4/html5/thumbnails/2.jpg)
Confidential, PICA8 Inc.
Zetabytes of data
More Challenges for Networking
2
Millions of virtual machines
Trillions of things
Billions of cell phones
Reduce provisioning time
Reducing time by over 1,000x through SDN
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Confidential, PICA8 Inc.
What is SDN
3
Open Platform
Networking SDN
protocols
Tools & Automation
Seamless migration when and where you want • Robust L2 + L3 stack on bare metal • OpenFlow through OVS on bare metal • CrossFlow interworking – true seamless migration
The right tool for the job / best of both worlds • NetOps + DevOps – Linux shell or feature rich CLI • Industry standard configuration management • Unmodified Linux kernel
Network OS should abstract you from hardware • Option to choose the HW independent from the OS • Easy to install and configure & Automate • vASIC® technology ensures ASIC flexibility
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Confidential, PICA8 Inc.
Virtual, distributed, commoditized
Commoditized Big chassis
Today Market Trend
4
Server Revolution and Innovation to Networking Virtualize
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Confidential, PICA8 Inc.
The SDN Journey
5
“The Chasm
” Innovators “Techies”
Early Adopters
Early Majority
Late Majority
Laggards
Qualifying technology
Find killer application
Widely deploy and find new applications
...
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Confidential, PICA8 Inc.
Buying Bare Metal Switches
6
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Confidential, PICA8 Inc.
Sometimes the Simplest Ideas…
7
Enterprise Data Center WAN
1 2
3 4
VB1 VB 2
TAP 1
25 26
27 28
TAP 2
42
43 44
TAP 3
VB 3
41
Controller
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Confidential, PICA8 Inc. 10
Open is the Freedom to Choose!
ASI
C
Con
trol
Pla
ne
Freedom to mix & match
Linux Kernel
vASIC
SNM
P
NTP
Teln
et
OVS
L2
BG
P
OSP
F
CLI BASH H
W
OD
M
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Confidential, PICA8 Inc.
Simplification of OSI
9
Complexity as a barrier for innovation
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
SDN as Mixed of traditional and abstraction
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Confidential, PICA8 Inc.
Today – the Network Forces Behavior
10
Switched (Layer-2) domain • Allows broadcast • Limited scale with the concern of storm • Aggregated complexity at the core
Routed (Layer-3) Domain • Can scale to millions of routes • Requires any-to-any route table • Long converging time • Complex to set up or maintain
The OSI model works for a lot of situations…. The Internet does work However….
OSI Model
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
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Confidential, PICA8 Inc.
OpenFlow Drives Business Logic
Leveraging OSI model thinking does not make use of the new capabilities
Tailor the header and select what the
business needs for a specific application
11
OSI Model
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
OpenFlow Model
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Confidential, PICA8 Inc.
Business Logic Applied
12
WEB App
Traditional – switch/ route based on IP and MAC headers Need to control switched / L2 domains
Need to minimize routed / L3 lookups and convergence
OpenFlow – forward only if a rule matched No need for controlling broadcast storms
No need for convergence
Servers
SQL
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Confidential, PICA8 Inc.
Fabric Design Options
13
L2 over Layer 3 VXLAN Controlled
By Openstack
Servers
Traditional L2 With MLAG or
Routing
Servers
Tunnels Mesh L2/L3
Full Openflow Network Same control plane for Virtual
Switch and Physical Switch
Servers
OpenFlow
Software Abstraction and Simplicity
SSSS
LLLL LLLL LLLL LLLL
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Confidential, PICA8 Inc.
Cloud Networking Landscape
14
Neutron
Configs
App App
ML2
OVS Pica8 Driver
Linux Bridge
. . .
Routing Options: • OSPFv2 / OSPFv3 • BGPv6 for large Fabric • OpenFlow 1.4 Overlay Options: • VLAN (Q in Q) • HW offload VXLAN • GRE tunnels (L2 or L3) • MPLS
Application embedded in ODL: • Standard API • Extendable
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Confidential, PICA8 Inc.
Bare Metal Switch & SDN ‘’Hot Spots’’
15
Internet Peering Points
Campus / DC
Traditional L2/L3
MAN
Software Defined Router
DC-to-DC
CLOS Fabrics
SSSS
L L L L L L L L L L L L L L L L
SSSS
L L L L L L L L L L L L L L L L
Data Centers
Private WAN / NaaS
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Confidential, PICA8 Inc.
Data Center Battleground
16
DRIVERS • Agility, like the server • On demand dynamic connectivity • Abstraction, application developers do
not want to learn networking they just want the network to magically work
• Scalable and cost effective
TECHNOLOGY • Open source, OpenStack has critical mass • Tunneling / overlays • Standard API and integration to orchestration • Bare metal move, hardware and software
separation • Automation, lifecycle managment
SSSS
L L L L L L L L L L L L L L L L
SSSS
L L L L L L L L L L L L L L L L
Internet
CLOS Fabrics
DN Data Centers
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Confidential, PICA8 Inc.
DC-to-DC Thinking Differently
17
DC-to-DC
DRIVERS • Private to public cloud transition • Business logic intelligence in
the pipe • Application based SLA
assurance • Intelligent geo-based
load balancing
TECHNOLOGY • Tunneling / Overlays • OpenFlow • Open source • Bare metal move, hardware
and software separation
Site A
Pica8 3290 Pica8 3780
OpenFlow OVSDB
OpenFlow OVSDB
SDN WIX
(BGP)
RouteFlow
Ryu
(BGP)
RouteFlow
Ryu
Site B
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Confidential, PICA8 Inc.
Disruption @ the Routed Edge
18
DRIVERS • Service chaining • Ultra-granular traffic grooming • Business logic intelligence in the pipe • Application based SLA assurance • Service deployment velocity • Cost savings
TECHNOLOGY • OpenFlow • L2 / L3 demarcation • Tunneling / overlays • Bare metal move, hardware
and software separation
Private WAN / NaaS Software Defined
Router
BM
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Confidential, PICA8 Inc.
The Campus — SDN Beachhead or Lagger?
19
Campus / DC
Private WAN / NaaS
Traditional L2/L3
MAN
DRIVERS • Business logic intelligence
in the network • Private to public cloud
transition • Centralized decision making • Application based SLA
assurance • BYOD drives more
dynamic security needs
TECHNOLOGY • OpenFlow • L2 / L3 demarcation • Bare metal move, hardware
and software separation
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Confidential, PICA8 Inc.
Bare Metal Switch & SDN ‘’Hot Spots’’
20
BM SDN
BM SDN
Internet Peering Points
BM SDN
BM SDN
Campus / DC
Traditional L2/L3
MAN
Software Defined Router
DC-to-DC
CLOS Fabrics
SSSS
L L L L L L L L L L L L L L L L
SSSS
L L L L L L L L L L L L L L L L
Data Centers
Private WAN / NaaS
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Confidential, PICA8 Inc.
SDN State of the State
§ L2 / L3 will be around for decades to come
§ SDN should be about driving business logic into the network, not having the network constrain the business
§ Business logic requires rethinking the stack
§ SDN use cases that deliver business benefits will drive real revenue in 2015+
21