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Network Virtualization in The Hybrid Cloud. Stanislav Zhelyazkov Microsoft MVP 21/11/2013. Session Objectives. VMM Networking Network Virtualization in Windows Server Hyper-V 2012 and VMM 2012 SP1 Improvements in Windows Server 2012 R2 and VMM 2012 R2 Microsoft Multi-Tenant Gateway.

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Presentation Transcript
slide1

Network Virtualization in

The Hybrid Cloud

Stanislav Zhelyazkov

Microsoft MVP

21/11/2013

session objectives
Session Objectives
  • VMM Networking
  • Network Virtualization in Windows Server Hyper-V 2012 and VMM 2012 SP1
  • Improvements in Windows Server 2012 R2 and VMM 2012 R2
  • Microsoft Multi-Tenant Gateway
isolation types in vmm
Isolation Types in VMM

Network Virtualization

Isolation through encapsulation. Independence from physical address space.

Layer 2:

VLAN

Tag is applied to packets which is used to control the forwarding

Layer 2:

Private VLAN (PVLAN)

Primary and Secondary tags are used to isolate clients while still giving access to shared services.*

Physical separation

Physical switches and adapters for each type of traffic

* VMM 2012 SP1 and R2 only supports creation of isolated PVLAN VMs

where and what isolation we should use
Where and What Isolation We Should Use?

Infrastructure networks

VLAN or No isolation

Load balancer back end and internet facing

PVLAN

Tenant networks

Network virtualization or

External

logical networks
Logical Networks
  • Models the physical Network
  • Separates like subnets and VLANs into named objects that can be scoped to a site
  • Container for fabric static IP address pools
  • VM networks are created on logical network
port profiles and classifications
Port Profiles and Classifications
  • Two Port Profile Types
    • Uplink
    • Virtual
  • Port Classifications
    • Container for port profile settings
    • Reusable
    • Exposed to tenants through cloud
logical switch
Logical Switch

Logical Switch in VMM

  • Central container for virtual switch settings
  • Consistent port profiles across data center
  • Consistent extensions
  • Compliance enforcement

Switch settings

Switch settings

Port Profiles

(Uplink)

Port Profiles

(Virtual)

Corp

Clust.

Mgmt

hyper v network virtualization concept
Hyper-V Network Virtualization Concept

Customer Address

VSID

Provider Address

192.168.2.22

192.168.5.55

GRE Key 5001

MACCA

10.0.0.5 

10.0.0.7

NVGRE

Packet

192.168.2.22

192.168.5.55

GRE Key 6001

MACCA

10.0.0.5 

10.0.0.7

192.168.2.22

Different subnets

192.168.5.55

10.0.0.5

10.0.0.5

10.0.0.7

10.0.0.7

10.0.0.5

10.0.0.7

10.0.0.5 

10.0.0.7

10.0.0.5

10.0.0.7

10.0.0.5

10.0.0.7

network virtualization improvements in windows server 2012 r2 hyper v
Network Virtualization Improvements in Windows Server 2012 R2 Hyper-V
  • Network Virtualization is now virtual switch extension
    • Hyper-V network virtualization and forwarding extensions can coexist
    • Hyper-V Network Virtualization enabled by default
  • Broadcast/Multicast Support
    • Dynamic IP Address Learning
    • Support for Guest Clustering
    • DHCP inside VM Networks
  • Inbound and outbound spread on virtualized traffic
    • Higher performance with teamed NICs
    • Utilizes LBFO’s new Dynamic Mode
network virtualization improvements in windows server 2012 r2 hyper v1
Network Virtualization Improvements in Windows Server 2012 R2 Hyper-V
  • Provider Addresses configured with a MAC address
    • *-NetVirtualizationProviderAddresscmdlets updated to take a MAC address
  • Optimal performance when you have 1 (or more) PAs per NIC in the team
  • Enhanced diagnostics - Test-VMNetworkAdapter and Select-NetVirtualizationNextHop
  • NVGRE Encapsulated Task Offload – Available in 2012 but recently Emulex and Mellanox have announced products supporting NVGRE Task Offload
network virtualization improvements in vmm 2012 r2
Network Virtualization Improvements in VMM 2012 R2

Network Service

  • Improved HNV policy applying
  • All network devices* and services are now “network services”
  • Highly available Multi-Tenant Gateway
  • Full IPAM Integration
    • In-box plugin for Microsoft IPAM
    • Exchange logical networks, sites and subnets
  • More error resistant VMM Server

Virtual Switch Extension

Network Manager

Net. Virt. Policy

Gateway

Physical Switch

*except load balancers

hybrid networking in ws2012
Hybrid Networking in WS2012

S2S tunnel

S2S tunnel

  • One S2S GW per tenant
  • Limited routing capability
  • Manual provisioning
  • Internet connectivity back to remote site
  • No VMM Integration

Contoso

Site 1

Contoso

VM Network

Contoso

Site 2

S2S tunnel

Northwind

VM Network

Northwind

S2S tunnel

S2S tunnel

Fabrikam

VM Network

Fabrikam

Site 1

Fabrikam

Site 2

Internet

Hoster

hybrid networking in ws2012 r2
Hybrid Networking in WS2012 R2

S2S tunnel

  • Multitenant S2S network virtualization GW
  • Clustering for high availability on guest and host level
  • Uses BGP for dynamic routes update
  • Multitenant aware NAT for Internet access
  • Integration with VMM 2012 R2
  • Up to 200 S2S VPN Connections, 50 Routing domains and 500 virtual subnets

BGP

Contoso

Site 1

S2S tunnel

Contoso

VM Network

S2S tunnel

Contoso

Site 2

S2S tunnel

Northwind

VM Network

S2S tunnel

Northwind

Fabrikam

VM Network

Fabrikam

Site 1

Fabrikam

Site 2

Internet

Hoster

multi tenant networking stack
Multi-Tenant Networking Stack

Network Services

TCP/IP

IP Interface

VM

VM NIC

Hyper-V switch

multi tenant networking stack1
Multi-Tenant Networking Stack

Existing Network Services

Multitenant Network Services

TCP/IP

Compartment for Tenant VM Network

Default Compartment

Compartment for

Tenant VM Network

IP Interface

IP Interface

IP Interface

IP Interface

VM

VM NIC

Hyper-V switch

slide26
Check Out Our Whitepaper Hybrid Cloud with NVGRE (WSSC 2012 R2)http://gallery.technet.microsoft.com/Hybrid-Cloud-with-NVGRE-aa6e1e9a
slide28

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