© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public
Implementing Seamless Workload
Mobility across Datacenter (using
OTV)
Prab Kalra
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public
Distributed Data Centers
Building the Data Center Cloud
Distributed Data Center Goals
• Seamless workload mobility
• Distributed applications
• Pool and maximize global resources
• Business Continuity
Interconnect Challenges
• Complex operations
• Transport dependent
• Bandwidth management
• Failure containment Geographically Disperse Data
Centers
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public
Many physical sites - One logical Data
Center
Layer 2 Ethernet Extension
Introducing Overlay Transport Virtualization Simplifying Data Center Interconnect
Ethernet LAN Extension over any Network
• Ethernet in IP “MAC routing”
• Multi -datacenter scalability
Simplified Configuration & Operation
• Seamless overlay - No network re-design
• Single touch site configuration
• Provisioning Automation
High Resiliency
• Failure domain isolation
• Seamless Multi-homing
Maximizes available bandwidth
• Automated multi-pathing
• Optimal multicast replication Any Workload, Anytime, AnywhereUnleashing the full potential of compute virtualization
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 5
Applications that Benefit
from OTV Ethernet LAN Extensions
Cluster (Local)
vMotion
MSCS (with all your back office on it)
Veritas Cluster Server (Local)
Solaris Sun Cluster
Enterprise
RAC (Real Appl.Cluster)
HACMP
Legato Automated Availability Mgr
Metro Cluster
Metrocluster
BACnet (building automation/control - http://www.bacnet.org/)
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End of Row
Middle of Row• Clusters and vMotion operate well within
L2
• Build larger L2 networks for improved
access layer load balance
L2L2
L3
ClustersV-Motion
V-Motion Clusters
Cisco OTV: Intra Data Center Layer 2 NetworkingvMotion and Clustering – Bound by L2
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End of Row
Middle of Row• Clusters and vMotion operate well within
L2
• Build larger L2 networks for improved
access layer load balance
L2L2
L3
ClustersV-Motion
V-Motion Clusters
Cisco OTV: Intra Data Center Layer 2 NetworkingvMotion and Clustering – Bound by L2
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End of Row
Middle of Row• Clusters and vMotion operate well within
L2
• Build larger L2 networks for improved
access layer load balance
L2L2
L3
ClustersV-Motion
V-Motion Clusters
Cisco OTV: Intra Data Center Layer 2 NetworkingvMotion and Clustering – Bound by L2
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 9
End of Row
Middle of Row• Clusters and vMotion operate well within
L2
• Build larger L2 networks for improved
access layer load balance
L2L2
L3
V-Motion
V-Motion
Cisco OTV: Intra Data Center Layer 2 NetworkingvMotion and Clustering – Bound by L2
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 10
End of Row
Middle of Row• Clusters and vMotion operate well within
L2
• Build larger L2 networks for improved
access layer load balance
L2L2
L3
V-Motion
V-Motion
Cisco OTV: Intra Data Center Layer 2 NetworkingvMotion and Clustering – Bound by L2
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 11
Access Pod 1
• Clusters, vMotion require L2 extensions
to go across access pods
• Improves Manageability
• Dynamic Annexation
• Portability & Expansion
L2
L2
L3
Access Pod 2
Cisco OTV: Intra Data Center Layer 2 NetworkingUnbinding vMotion and Clustering
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 12
Access Pod 1
• Clusters, vMotion require L2 extensions
to go across access pods
• Improves Manageability
• Dynamic Annexation
• Portability & Expansion
L2
L2
L3
Access Pod 2
Cisco OTV: Intra Data Center Layer 2 NetworkingUnbinding vMotion and Clustering
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Access Pod 1
• Clusters, vMotion require L2 extensions
to go across access pods
• Improves Manageability
• Dynamic Annexation
• Portability & Expansion
L2
L2
L3
Access Pod 2
Cisco OTV: Intra Data Center Layer 2 NetworkingUnbinding vMotion and Clustering
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Access Pod 1
• Clusters, vMotion require L2 extensions
to go across access pods
• Improves Manageability
• Dynamic Annexation
• Portability & Expansion
L2
L2
L3
Access Pod 2
Cisco OTV: Intra Data Center Layer 2 NetworkingUnbinding vMotion and Clustering
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 15
Access Pod 1
• Clusters, vMotion require L2 extensions
to go across access pods
• Improves Manageability
• Dynamic Annexation
• Portability & Expansion
L2
L2
L3
Access Pod 2
Cisco OTV: Intra Data Center Layer 2 NetworkingUnbinding vMotion and Clustering
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Access Pod 1
• Clusters, vMotion require L2 extensions
to go across access pods
• Improves Manageability
• Dynamic Annexation
• Portability & Expansion
L2
L2
L3
Access Pod 2
Cisco OTV: Intra Data Center Layer 2 NetworkingUnbinding vMotion and Clustering
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Access Pod 1
• Clusters, vMotion require L2 extensions
to go across access pods
• Improves Manageability
• Dynamic Annexation
• Portability & Expansion
L2
L2
L3
Access Pod 2
Cisco OTV: Intra Data Center Layer 2 NetworkingUnbinding vMotion and Clustering
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 18
Access Pod 1
• Clusters, vMotion require L2 extensions
to go across access pods
• Improves Manageability
• Dynamic Annexation
• Portability & Expansion
L2
L2
L3
Access Pod 2
Cisco OTV: Intra Data Center Layer 2 NetworkingUnbinding vMotion and Clustering
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 19
Access Pod 1
• Clusters, vMotion require L2 extensions
to go across access pods
• Improves Manageability
• Dynamic Annexation
• Portability & Expansion
L2
L2
L3
Access Pod 2
Cisco OTV: Intra Data Center Layer 2 NetworkingUnbinding vMotion and Clustering
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Cisco OTV: vMotion Across Data CentersLive migration of VMs from one data center to another
Data Center A Data Center BEthernet Extension
Any Transport
Long Distance vMotion
This represents a significant advancement for virtualized environments by simplifying and accelerating long-distance workload migrations.
Ben Matheson, Senior Director, Global Partner Marketing, VMware
Nexus7000
Nexus7000
OTV
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 21
Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
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Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
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Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
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Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
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Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
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Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 27
Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
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Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
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Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 30
Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 31
Cisco OTV: Data Center InterconnectActive/Active and Disaster Recovery
L2
L3
DR
IP
Main CampusRemote Site< 80 KM
Disaster Recovery> 80 KM
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public
Ease of Provisioning: Data Center Growth Constraints
Problem Primary data center maxed out (space, cooling and power)
Requirement Seamlessly extend clusters and workload across data centers
Challenge Rapidly establish DCI between data centers
• No new transport provisioning required (Dark fiber, MPLS, etc)• Eliminate months of re-design effort • Significant operations and provisioning cost savings (no new protocols )
Solution: OTV – Establish DCI in 5 minutes!
Deploy over existing Network
4 configuration commands per site
No Re-design Required
Ethernet Overlay
One Logical Data Center
Automatic Fault Isolation
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OTV at a Technical Glance
• Ethernet traffic between sites is encapsulated in IP: “MAC in IP”
• Dynamic encapsulation based on MAC routing table
• No Pseudo-Wire or Tunnel state maintained
Communication between
MAC1 (site 1) and MAC2 (site 2)EastSite
WestSite
OTV OTV
MAC IF
MAC1 Eth1
MAC2 IP B
MAC3 IP B
IP A IP B
Encap Un-Encap
MAC1 MAC2IP A IP B MAC1 MAC2
MAC1 MAC2
MAC IF
MAC1 IP A
MAC2 Eth 1
MAC3 Eth 2
IP packet Ethernet Frame
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 3434
Fabric Scalability beyond the POD
Common Infrastructure for flexible deployment models
Complimentary Innovations:• FabricPath: Scalable Fabrics for Application Deployment Flexibility
• OTV : Layer 2 extensions over Layer 3 for Distributed Clustered Applications
• Optimized routing and segmentation within the flexible Fabric
Data Center Interconnect ExtensionOverlay Transport Virtualization
Scalable PodvPC & FEXLink
Classical PodSpanning Tree Protocol
Highly Scalable PodFabricPath
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public
Cisco Overlay Transport Technology
• Simple Configuration
• Ease of Operation
• Automated Multi-homing
• Site Independence
Simplifying & Advancing Data Center Interconnects
35