Glue con2011 future_of_net_systems

Cloud and the Futureof Networked Systems
Why “big, flat and dumb” isn’t enough
James Urquhart
CNET | The Wisdom of Clouds
Program Manager, OpenStack@Cisco

James Urquhart
@jamesurquhart
CNET | The Wisdom of Clouds

In 20 years of distributed systems practice, what have I learned?

We need to simplify operations from the point of view of the application.

Application (in theory)
a. A type of job or problem that lends itself to processing or solution by computer: Inventory control is a common business application.
b. A program used for a particular use (as opposed to a system)

Application (in reality)
SaaS
Data/Metadata
Config
Policy

SaaS
PaaS
Data/Metadata
Config
Policy
Data/Metadata
Config
Policy
Code

SaaS
PaaS
IaaS
Data/Metadata
Config
Policy
Data/Metadata
Config
Policy
Data/Metadata
Config
Policy
Custom
Code
Code
Libraries
OS/Middleware
VM

Here’s the thing…

Cloud is an
operations model.

Cloud is an application centric operations model.

Prior to cloud, we were server centric…

Pre-
Cloud

Pre-
Cloud
OS
OS
OS
VM
VM
VM

App
App
App
App
App
App
Pre-
Cloud
App
App
App
OS
OS
OS
VM
VM
VM

With the adoption of cloud, we are now application centric…

Application
Cloud
Config
Code
Data
Policy

Application
Cloud
Config
Code
Data
Policy
Service(s)
Other Services

Application
Cloud
Config
Code
Data
Policy
Service(s)
Other Services
Infrastructure

Any cloud service or enabling technology must look at solutions from an application perspective.

So, what is the network’s role in cloud computing?

Application developers want one thing from the network…
…invisibility.

The temptation is…

Put a little nicer…

Unified

Simplified

Pushed to the Edge

One topology to rule them all…

…and in the darkness bind them.

The problem is that current cloud network architecture was designed for one purpose…

…web applications.

Relatively few processes…
UI
Service
Data store

…with one or few owners…
UI
Service
Data store

…spread over 10s/100s/1000s of servers

The good news is that this also works out great for other “big data” applications.

For example:
Data Mining

For example:
Data Mining
Models/Simulations

For example:
Data Mining
Models/Simulations
“Recombination”

The bad news is this is a lousy model for most enterprise IT models.

Many processes…
Sales
Pipeline
CRM
GUI
Call
Center
Records
Mgmt
Doc
Mgmt B
Doc
Mgmt A
Soc
Media
CRM
App Tier
Data
Service
Video
Conf
Collab
Office Apps
Customer DB
Product
Catalog
VOIP
Catalog Data
Dept
App
etc.…

…on many technologies…
SF.com
Oracle
CRM
Five9
FileHold
Alfresco
Share-point
Chatter
Oracle
CRM
Java/WS-*
Tandberg
Yammer
MSFT
Office
Oracle RDBMS
MF COBOL
Cisco
HCS
Sybase
RDBMS
Visual-BASIC
etc.…

…with many owners…
Sales
Pipeline
ERP
Module A
Call
Center
Records
Mgmt
Doc
Mgmt B
Doc
Mgmt A
Soc
Media
ERP
Module B
Data
Service
Video
Conf
Collab
Office Apps
Customer DB
(Oracle)
Product
Catalog
VOIP
Catalog Data
Exec
Reports
etc.…

…each using a few, maybe 10s of servers.

The enterprise doesn’t have a scale-out problem…

The enterprise has a…
Integration
Compliance
Management
…problem.

This means the actual requirements for cloud infrastructure don’t stop at the application.

There’s…
Integration
Legal Requirements
Traffic Management
Troubleshooting
Security
Etc.

For example,
let’s take security…

Each solution will almost certainly be only part of the system(s) that is/are being secured.

Security will be distributed throughout the “cloud stack”

Security will be distributed throughout the network stack

Security will be distributed across geographical and topological boundaries

Security must become
multi-tenant

Security must scale.

Security must scale.
* Try doing that with compliance…

Security must meet a wide variety of application needs.

Same goes for
Application Management

Same goes for
Performance Management

Same goes for
QoS

Same goes for
Load Distribution

Same goes for
Etc.

Same goes for
Etc., Etc.

Same goes for
Etc., Etc., Etc.

So how will the network adapt?

Five ways:

Data center network architectures will “flatten”.

FabricPath
OTV
DCI
Open Source
QFabric
OpenFlow
Open vSwitch

The network will adapt to new dominant payloads and traffic patterns.

App
App
App
App
App
App
App
App
App
App
App
App
OS
OS
OS
OS
OS
OS
OS
OS
OS
OS
OS
OS
Cloud Network Boundary
Virtual Data Center
Virtual Data Center
Cloud OS
Application Security Services
Application Security Services
Cloud OS
Network Services (Security, Performance, Monitoring)
Network Transport Virtualization (VPN)
Enterprise
Network
Cloud Service
Provider
Network Service
Provider
Core networks will become agile and dynamic.

The network will introduce new abstractions to simplify configuration and operation.
Private
Cloud
Public
Cloud
Management
Firewall
Load Balancer
Network Container

Donabe

The network and its capabilities will become services to be consumed by cloud services.
IaaS
PaaS
SaaS
API(s)
Network service catalog(s) and fulfillment
Routers, switches, services (physical and virtual), etc.

Thanks!

Cloud and the Futureof Networked Systems
Why “big, flat and dumb” isn’t enough
James Urquhart
@jamesurquhart
jurquhar@cisco.com

Glue con2011 future_of_net_systems

by jurquhart on May 31, 2011

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