2. 2
What’s the problem ?
The internet is the problem But Why ?
well it Was designed 30 years ago .
Difficult to adopt a new architecture
Difficult to Modify that architecture
3. 3
Network virtualization to the rescue.
what we expect from NV.
Main Idea is .
test new architectures
help in the innovation of new techno’s
NV= {V.Nodes,V.Links} / NV ∈ Physical Net = {NV1,NV2,...NVn}
NV propose that ISP
InPs
SPs
InPS manage the infrastructure
SPs create the and manage the VN
5. 5
NV
start to see this concept in different techs like
Vlans
VPNs
Programmable Networks like SDN isolate run conflicting code
Overlay Networks
distributed systems such as cloud computing, peer-to-peer networks, andclient-serve
6. 6
NETWORK VIRTUALIZATION PROJECTS
Networking technology (X-bone)
Layer of virtualization (1->7 ) the lower it is, the higher the exibility
Architectural domain
Granularity of virtualization
Overlay Networks
distributed systems such as cloud computing, peer-to-peer networks, andclient-serve
7. 7
Trends
Trends
not just focus on solving one problem
pushing virtualization to lower layers
bridging gaps between diverse technologies.
8. 8
Design Goals
Flexibility and Heterogeneity.
Manageability .
the lower the layer = more flexibility (less payload in vpns )
independence on specific technologie (not over IP)
eas in the management of the virtual resources .
Isolation
Isolation between coexisting VNs
to provide security, privacy, and fault-tolerance .
11. 11
A lost of research need to be done
signaling and bootstrapping
resource allocation
resource discovery
Dynamism and Mobility Management
Security and Privacy
12. 12
A lost of research need to be done
we need new
internet
NV will be in the
architecture
