Extending You Data Center Reach with OTV & LISP

Lukas Krattiger (@CCIE21921)

Technical Marketing Engineer

Cisco Systems, Inc.

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Ensure business continuity

Distributed applications

Seamless workload mobility

Maximize compute resources

Distributed Data Center Goals

Geographically Disperse Data Centers

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Data Center Interconnect (DCI) ChallengesComplex Operations

Transport Dependent Failure Containment

Bandwidth Management

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Simplified Configuration & Operation

Seamless overlayNo network re-designSingle touch site configurationProvisioning Automation

Ethernet LAN Extension over any Network

Ethernet in IP “MAC routing” Multi-datacenter scalability

High Resiliency Failure Domain isolationSeamless Multi-Homing

Maximizes available bandwidth

Automated multi-pathingOptimal multicast replication

Many physical sites - One logical Data Center

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OTV – Overlay Transport VirtualizationSimplifying Data Center Interconnect (DCI)

5

Any Workload Anytime Anywhere

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Any Transport

Nexus7000

Nexus7000

Live Migration of VMs from one DC to Another

6Cisco Public

Data Center A Data Center B

This represents a significant advancement for virtualized environments by simplifying and accelerating long-distance workload

migrations. Ben Matheson, Senior Director, Global Partner Marketing, VMware

Long Distance VMotion

OTV for

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Clusters and VMotion operate well within Layer-2 (VLAN)

Build larger Layer-2 networks for improved access layer load balance

Layer-2 Networking in the Data Center (Intra Data Center)

ClustersV-Motion

Bounded within Layer-2 (VLAN)

L2

L3

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Access Pod 2

Unbinding VMotion and Clustering

Clusters, VMotion require Layer-2 extensions between PODs

Improves Manageability

Dynamic Annexation

Portability & Expansion

OTV

Access Pod 1

L2

L3

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Access Pod 2

Unbinding VMotion and Clustering

Clusters, VMotion require Layer-2 extensions between PODs

Improves Manageability

Dynamic Annexation

Portability & Expansion

OTV

Access Pod 1

L2

L3

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Main Campus

Active/Active and Disaster Recovery Sites

L2

L3

WAN

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Problem Primary data center maxed out (space, cooling and power)Requirement Seamlessly extend clusters and workload across data centersChallenge Rapidly establish DCI between data centers

Ease of Provisioning

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• 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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Main Campus Remote Site< 80 KM

Active/Active and Disaster Recovery Sites

L2

L3

WAN

OTV

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Main Campus Remote Site< 80 KM

Active/Active and Disaster Recovery Sites

L2

L3

DR Site> 80 KM

WANOTV

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No Pseudo-WireState Maintenance

Optimal MulticastReplication

Multipoint Connectivity Point-to-Cloud Model

Dynamic Encapsulation

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Preserve Failure Boundary Built-in Loop Prevention

Automated Multi-Homing Site Independence

Protocol Learning

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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

OTV at a Technical Glance

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Cisco Public

Communication between MAC1 (site 1) and MAC2 (site 2)East

Site

EastSite

WestSite

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

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OTV – Overlay Transport VirtualizationSimplifying Data Center Interconnect (DCI)

17

Any Workload Anytime Anywhere

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Simplifying your Data Center Interconnect (DCI) with Cisco’s Overlay Transport Virtualization (OTV)

Nadalina (3)

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• Layer 2 extensions represent a challenge for optimal routing

• Challenging placement of gateway and advertisement of routing prefix/subnet

Sub-optimal Routing

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WAN

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HSRPActive

HSRPStandby

HSRP Filter

HSRPActive

HSRPStandby

East-West /Server-Server

Egress:South-North / Server-Client

Egress:South-North / Server-Client

Ingress:North-South / Client-Server

Ingress:North-South / Client-Server

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LISP: Location Identity Separation Protocol

Internet

Device IPv4 or IPv6 address represents identity and

location

Today’s Internet BehaviorLoc/ID “overloaded” semantic

x.y.z.1 When the device moves, it gets a new IPv4 or IPv6 address for its new identity and

location

w.z.y.9

Device IPv4 or IPv6 address represents

identity only.

When the device moves, keeps its IPv4 or IPv6 address.

It has the same identity

LISP BehaviorLoc/ID “split”

Internet

a.b.c.1

e.f.g.7

Only the location changes

x.y.z.1

x.y.z.1

Its location is here!

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• Today’s Location/ID “overloaded” semantic has been decoupled

• Simplifying the challenge of routing prefix/subnet advertisements

Fixing Sub-optimal Routing with LISP

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WAN

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HSRPActive

HSRPStandby

HSRP Filter

HSRPActive

HSRPStandby

East-West /Server-Server

Egress:South-North / Server-Client

Egress:South-North / Server-Client

Ingress:North-South / Client-Server

Ingress:North-South / Client-Server

LISP LISP LISP LISP

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The Dynamic Duo – OTV and LISP!Better together to Extend Your Data Center Reach!

Thank you.

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