This presentation provides a definition of cloud computing (using NIST SP800-145), then builds on that definition to show why cloud networking has specific needs and how VMware NSX was built to meet those needs.
2. CONFIDENTIAL
Before we begin
• Please get involved and ask questions—participation is
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• This presentation will be available after the event
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3. CONFIDENTIAL
Who is this guy?
• VCDX #39
• Six-time vExpert
• Author, speaker, blogger
• Works in the CTO office of the
Networking & Security Business
Unit
•
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10. CONFIDENTIAL
Five essentials of cloud networking
To support cloud computing, networking must:
1. Be fully automated & programmable for integration into CMPs
(on-demand self-service)
2. Be abstracted from hardware in order to pool available capacity
(resource pooling)
3. Support programmability and integration with orchestration/
provisioning solutions (rapid elasticity)
4. Provide fine-grained visibility & accounting (measured service)
5. Support any network topology & any network equipment (broad
network access)
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11. Components of a cloud
networking platform
Looking at what is needed to build a platform to
address the needs of cloud networking
21. CONFIDENTIAL
What’s in a cloud networking
platform?
• Virtual switch at the edge of the network
• Centralized control over/knowledge of the logical network
topology
• Decoupled control plane and data plane
• Network isolation mechanism
• Virtualized network services (L2, L3, load balancer, firewall)
• Programmatic access for integration with CMP
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23. CONFIDENTIAL
Peeling back the covers a bit
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• Key components of VMware NSX:
• Scale-out, highly-available controller cluster
• Northbound RESTful API for CMP integration (vCAC,
OpenStack, CloudStack)
• Virtual switch in the hypervisors at the edge (Open vSwitch
for KVM and Xen; NSX vSwitch for vSphere)
• Tunneling protocol for data plane traffic (STT, GRE, VXLAN)
• Virtualized and distributed network services (load balancing,
firewalling, VPN)
• Physical switch integration (multi-hypervisor only)
24. CONFIDENTIAL
VMware NSX architectural overview
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VLAN
L2
L3
Virtual Network
L2
NSX Gateway
Physical Network
vSphere Host vSphere Host KVM Xen Server
NSX vSwitch NSX vSwitch Open vSwitch Open vSwitch
Hardware
Software
Controller Cluster
VLAN
VTEP API
HW Partner
VM VM
“NSX API”
CMP
25. CONFIDENTIAL
VMware NSX management, control,
and data planes
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vCD/vCAC
vCenter Server NSX Manager
Management Plane
Control Plane
NSX Edge
Distributed
Router
Controller
Data Plane
NSX Edge
Services Router
VXLAN DR DFWSecurity VXLAN DR DFWSecurityVXLAN DR DFWSecurity
vSphere API
REST APIvSphere API
Control Plane
Protocol
vSphereAPI
REST API
Control Plane
Protocol
MessageBus