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1. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 1
A Hitchhiker’s Guide to
the Inter-Cloud
Krishna Sankar
ksankar@cisco.com

2. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 2
Agenda
A Quick Elevator Pitch
On Inter-Cloud
Thanks to David Bernstein, Glenn Dasmalchi, Doug
Gourlay, James Urquhart, …

3. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 3
Data Center Evolution Path
Consolidation Abstraction Automation Utility Market
Data Center Networking
Unified Fabric
Unified Computing
Private Clouds
Inter-Cloud
Virtualization Cloud Computing

4. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 4
Cisco Cloud Strategy
Technology
Enhanced IP core with tight
coupling to Software
Services/
Reference SW
Services-led Cloud blueprints
Reference software stacks
Open Standards
Accelerate Cloud deployment
and federation through
Cloud standards
Multi-Phased
Standalone Clouds
to
Enterprise-Class
to
Inter-Cloud
Build Right Products
Unified Fabric
Unified Compute
Virtualization Aware

5. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 5
Essential Cloud Monikers
a.k.a. defining clouds without defining them
 Elasticity
 Multi-tenancy
Federation
Abstraction
IaaS
SaaS
Inter-Cloud
SaaS
Private
Cloud
 Abstraction
 Federation
 Trust Boundary
 Ownership
Boundary

6. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 6
Cloud Adoption Phases
Enterprise-
Class Clouds
Standalone
Clouds
Inter-Cloud
External,
Off-Premise Internal,
On-Premise
 Security
 SLAs
 Control
Key challenges:
 Federation
 Portability
 Market
Key challenges:

7. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 7
Vision—The Inter-Cloud
A Federation of Clouds Based on Open Standards:
 Naming/Discovery
 Trust
 Exchange/Peering
Apps Integrate Services
from Multiple Clouds
Dynamic
Workload
Migration
Flexible Infrastructure and a New Application Platform

8. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 8
Virtual Private Inter-Cloud / CloudBursting
Multi-Tenant
SP Cloud
Internal
Cloud
Internal
Cloud
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential8
Seamless Extension of the Enterprise DC (IaaS)
Trust Boundary
(same)
Vs.
Ownership
Boundary (may be
different)
External
Cloud
1. Established Trust
Relationship
2. Compatible
Infrastructure

9. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 9
 When enterprise applications can seamlessly move between their
internal & external clouds leveraging the elasticity & multi-tenancy
that a cloud infrastructure offers
 Extend secure data center to the cloud computing era
 In order to get a portion of the SP cloud as a „seamless extension‟
of the enterprise data center, one also needs
• To migrate network context like VPN/VRF, VLAN, Load Balancing,
firewall/NAT, QoS and may be some port profiles (for IKV/1K/5K) and
configuration (for others).
 This will require a convergence of
• Current ideas, as well as
• A slice of new technologies (like LISP) at appropriate levels to tackle
this challenge.
Virtual Private Inter-Cloud / CloudBursting

10. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 10
Inter-Cloud: Key Questions
 What is the “network model” ?
-network-based isolation for the multitenant SP cloud
-network abstractions for the enterprise tenants (seamless)
 What are the “network features” that differentiate?
- isolation (per above), QoS, monitoring, CPE linkages
 How are the network features exposed/integrated?
- control APIs (and underlying abstractions)
- cloud OS linkages
 To what extent will we support workload mobility?
- live migration requirement?
- moving workload context
-Dude, where is my VM ?

11. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 11
Inter-Cloud
 Orchestration
 App Deployment
 Billing/Charge-back
 SLA Monitoring
 Traffic Isolation
 Security
 QoS
 Virtual Switching
 Cluster
Communications
Enterprise-
Class Clouds
 Address Mobility
 Monitoring/
Event Processing
 Intelligent Caching
 Policy-Based
Selection
 Select Workload
Mobility
 Data
Access/Mobility
Application APIs
Compute Services
 Identity/Presence
 Discovery
 Network Search
 CloudBursting
 simpler case
 Cross Cloud:
 Load Balancing
 Fault Tolerance
 Workload Exchange
Application APIs
Integration Services
Virtualized
Data Centers
Inter-Cloud In A Nutshell

12. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 12
Inter-Cloud Example
Dynamic Workload Migration – Simple VM Mobility
Cloud 1 finds Cloud 2
→ Naming, Presence
Cloud 1 trusts Cloud 2
→ Certificates, Trustsec
Cloud 1/2 negotiate
→ Policy, Entitlement,
Security, Metering
Cloud 1 / Cloud 2 transport
→ XMPP
Cloud 1 sets up Cloud 2
→ Placement, Deployment,
Format, Motion
Cloud 1 sends to Cloud 2
→ Transfer, Management
VM Runs in Cloud 2
→ Addressing, VLAN,
WWN, Filesystem

13. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 13
Inter-Cloud Example
Dynamic Workload Federation – Generalized Service Access
Cloud 1 finds Cloud 2
→ Naming, Presence
Cloud 1 trusts Cloud 2
→ Certificates, Trustsec
Cloud 1 queries Cloud 2
for Services
→ RDF/SPARQL, OWL
Cloud 1 / Cloud 2 transport
→ XMPP
Cloud 1 selects; receives
protocols, interface
→ Web Services; REST API
Cloud 1 calls services in
Cloud 2
→ Metering, SLAs

14. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 14
Specific Inter-Cloud Projects
 Addressing – IETF LISP
 Distributed Storage
Acceleration -
opencloudconsortium.org,
udt.sourceforge.net
 Virtual Machines
DMTF OVF
 Conversations –
XMPP.org
 UCI – W3C,
Google Code
 Media Enablement

15. © 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 15
Actual Physical
MAC Addresses
IP Addressing
VLAN
Multicast
WWN
FC
iSCSI
VSAN
Intel VT, AMD-V
VNtag
Time Synchronization
Power Management
Physical
Metaphor
VM Format
VM Mobility
VM Management
Server profiles
VM Management
Platform
Metaphor
Blob Storage
Block Storage
Map/Table Model
Query Model
Content Addressable
Load Balancer
Distributed Memory
Grid / MPI
Users Directory
Identity Search
Content (URL, Cache)
Message (Queue, Email)
Drives
Filesystem
Communication
HTTP, XMPP, P2P, UDT Transport
REST, XML Invocation
XML Schema, SOAP Description
Remote Desktop
Spice, RDP Transactions
Synchronization
Orchestration
Security
Policy
Entitlement
Audit
Management Endpoints
Streaming Audio
Streaming Video
Deployment
Placement
Instrumentation
Metering
SLA
Naming/DNS
Discovery
Trust/Certificates
Events
Logs
Presence
Identity
Geospatial
Inter-Cloud
Standards &
Protocols
Roadmap
Lots of Work to
do
Cisco Strategy:
use technology
to enable
enhanced,
interoperable
network based
services
Industry
Associations,
partnerships
inevitable