Lam Chee Keong

25/5/12

VIRTUALIZATION AND THE CLOUD:
WHERE IS THE CONNECTION?
CK Lam
Enterprise Solutions Manager (Data Center),
Asia-Pacific
May 28, 2012

JUNIPER IS FOCUSED ON TWO KEY MARKET TRENDS

Cloud Computing Mobile Internet
Projected spend on Cloud Computing as SmartPhones Have Surpassed PCs —
a Percentage of Overall IT Spend as the Mobile Experience Usurps
the Desktop Model

120 Million

90
2013 40%
70% 2015
60
SMARTPHONES
30
PCS

Total: $2.78 Trillion 2009 2010
source: Gartner source: Gartner

2 Copyright © 2011 Juniper Networks, Inc. | www.juniper.net | Company Confidential

1

25/5/12

Virtualization ≠ Cloud


Cloud Services

Services delivered over the Network
Service Providers
•  New business opportunity
Application Services
•  Pay-as-you-go services
Platform Services Corporate IT
•  New provisioning model
Infrastructure Services •  New infrastructure model


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Always on, Always responsive

Efficiency

Agility

Economic, Scalable, Secure
Dynamically shared resource pools

CLOUD COMPUTING SERVICES: WHY?
§  Economics
§  Cost/Efficiency
§  Pay per Use

§  Elasticity
§  Scale very quickly as needed
§  No additional infrastructure investment

§  Ubiquity
§  Available anywhere/anytime
§  Instant access (credit card)


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WHAT DOES CLOUD DO FOR ENTERPRISES?

•  Costs
§  Sharing of resources like server, storage, security and network

•  Elasticity
§  Ability to scale up and down quickly according to business needs
§  Dynamically allocate/reallocate resources for certain applications to
support a LOB
•  Self-Provisioning
§  Users can provision for application, server, storage, network and
security on their own
•  Overall benefit:
§  Faster turnaround time for users and business
§  Less dependence on IT


THE WORLD IS ON THE MOVE
THE NETWORK CAN’T STAND STILL
The Network Becomes a Key Enabler
Clients or Barrier to IT Success Applications

Mobile
Corp IT

Home

Outsourced

Branch

Ad-Hoc
Chosen
Campus
Assuring Mobile Accessibility
Is Now an Imperative


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MOBILITY REDEFINES BUSINESS PRACTICES
AN OPPORTUNITY, NOT A PROBLEM
Business Applications Personal Applications

Pulse

42% 39% 37%
Increased Reduced Increased
Productivity Paperwork Revenue

Source : Forrester, Frost &Sullivan, Business week, Gigaom pro, ABI research

AS THESE TRENDS ACCELERATE, THEY CREATE DEMAND FOR
A QUANTUM LEAP IN DATA CENTER CAPABILITIES

The Exponential Data Center


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THE APPLICATIONS EVOLVED

Client – Server Architecture Service Oriented Architecture

Client Client

95% 25%
Server
Server
Server Server
B
A C

75%
Server
D DB Server

A fundamental change
11 in data flows Company Confidential
Copyright © 2011 Juniper Networks, Inc. |
www.juniper.net |

DATA CENTERS ARE BUILDING CLOUDS

The
Network
A single
Resource
scalable pool
is the
Pooling-Clouds
foundation


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THE REST CENTERDATA CENTER HAS ADVANCED
DATA OF THE NETWORK HAS NOT EVOLVED,
DRAMATICALLY IN RECENT YEARS
AND IS NOW AN INHIBITOR

From To
“Virtualization and

FLEXIBLE, VIRTUALIZED MODEL
RIGID, LEGACY MODEL OF I.T.

On-Premise
Applications
Apps distributed applications
Software-as-a-service

are transforming every
part of the data center.
Dedicated
Servers/Compute
Servers To maximize the potential
Virtualized workloads
of virtualization, the
network must also
Dedicated
Storage
Storage transform.”
Virtualized storage

— Zeus Kerravala
Layers of
Network
Network
Complexity
SVP & Distinguished Research Fellow
Yankee Group


VIRTUALIZATION

Customers’ Path of Enlightenment

1
Consolidation


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VIRTUALIZATION

Customers’ Path of Enlightenment

1 2 3
Consolidation Agility Resiliency

§  Non critical apps §  Critical apps Legacy
§  Small pools Legacy §  Large pools network is a
§  Static network is §  Dynamic Problem!
§  Simple security adequate Particularly at
§  Sophisticated
model security model 10 GbE


MANAGING PHYSICAL RESOURCES

Access Switch

Server 1 Server 2

O/S O/S
U U
N N
U U
S S
E E
D D

App 1 App 2


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VIRTUALIZATION AND CLOUDS
RESOURCE MANAGEMENT
6 Access Switch

10 Gbe 10 Gbe

Server 1 Server 2

3
Hypervisor Hypervisor

O/S O/S O/SO/S U O/S
O/S O/S O/S U
O/S U
n
N N n
u u
s
U U s
e e
d
S S d
App 1 App 2 App App 3
6
3 E App 4 1 App 5
App 2 App 3 E
App 3
D D

VM 1 VM 2 VM 6
3 VM 4 VM 5 VM 3


TWO PROBLEMS WITH THE LEGACY NETWORK

The Problem with Overwhelming
Trees Complexity
Customer Customer
challenge challenge

Multiple
Maintaining networks and each
application with geometrically
consistency in a increasing complexity
dynamic environment

Experience Economics


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HOW ARE RESOURCES CONNECTED TODAY?



Typical tree
configuration


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Location matters in a
tree architecture
Typical tree
configuration Limited bubble size

Bubble
Optimal performance

One
Hop
VM


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OVERWHELMING COMPLEXITY AND UNPREDICTABLE
LATENCY

Legacy Response to Increased Demand: “Add More Boxes”

Complexity Cost Layer 3 Risk Latency
Core Switches

Layer 2
Aggregation Switches

Layer 1
Top-Of-Rack Switches


SO WHAT IS
THE SOLUTION?

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25/5/12

SIMPLIFY THE
NETWORK

TRANSFORM THE NETWORK 3 2 1

3 The legacy network, 3 tiers

Ethernet

Servers NAS FC Storage

FC SAN

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25/5/12

Simplify to 2 tier with
3 2 1
Virtualization Technology

MX
§  SRX and vGW
§  Inter-DC connectivity
Remote Series
Data Center

§  MPLS and VPLS
§  Junos Space
EX8216
§  Virtual Chassis
STP
SRX5800

EX4200


FC SAN

The Ultimate Simplifcation

Remote
Edge
Router
Flat, resilient fabric
Data Center Everything is one hop away

Scale without complexity
The ability to add capacity without adding
operational complexity

N=1
Firewall
SLB


One large, seamless resource pool

14

25/5/12

WHAT DOES AN

IDEAL
FABRIC
LOOK LIKE?


TRANSFORM THE NETWORK

One Network
Flat, any-to-any
connectivity


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One Network
Flat, any-to-any
connectivity

VM Key resources
Key resources
are ALWAYS one
are one hop away
hop away

Locality should not matter in a virtualized data center


One Network Single device
Flat, any-to-any N=1
connectivity
Switch Fabric
Switch Data Plane
Fabric
§  Flat
§  Any-to-any
Control Plane
§  Single device
§  Shared state

Performance and simplicity of Single switch does not scale
a single switch Single point of failure


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One Network Single device
Flat, any-to-any N=1
connectivity
Switch Fabric
Data Plane
§  Flat
§  Any-to-any
Control Plane
§  Single device
§  Shared state

A Network Fabric
has the….
Performance and simplicity of Scalability and resilience
a single switch of a network
And the…

PROTOCOL OVERLAY FABRIC

Spine

TRILL or SPB
L2 tunnels

Leaf


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SWITCH FABRIC


DATA PLANE IN A SINGLE SWITCH

Data Plane
1. The line cards contain the ports
and processing intelligence
2. The fabric cards interconnects
all ports – any-to-any
3. A single “full lookup” processes
the packets


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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.


SINGLE SWITCH DOES NOT SCALE

Sacrifice simplicity or…
Choice: change the scaling model


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25/5/12

SCALING THE DATA PLANE

So, we separate the
line cards from the fabric.
And extend the copper
traces with fiber links.
For redundancy add
multiple devices.

QF/Interconnect

QF/Node


SCALING THE DATA PLANE

1.  All ports are
directly connected
to every other port
QF/Interconnect 2.  A single “full
lookup” at the
ingress QF/Node
device

QF/Node

3.  Blazingly fast:
Always under 5us
3.71us (short cables)

QFabric is faster than any Ethernet chassis switch ever built

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SWITCH VS. OVERLAY FABRIC – 6000 10 GbE PORTS

QFabric

Switch Fabric
Non-Blocking 1 4
L2 & L3 §  1/3 fewer devices

§  77% less power
1 125 Savings: $360K/Yr

Overlay Fabric §  90% less floor
space

L3 §  85% fewer links

§  12-16x faster

1 2 3 4 5 6 7 8 §  Mgd. Devices
L2 only
1 vs. 193
1 16 §  L2 AND L3

1
..
21
..
42
..
63
..
84
..
105
.. 126
..
147 167

41 Note: Copyright © 2011 Juniper Networks, Inc. | www.juniper.net | Company Confidential
•  OS* Over Subscription 3:1
•  Ports: 6000 server ports


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25/5/12


22

Lam Chee Keong

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