Virtual Network Architecture Over IP-optical Network
- Technological fields
- Telecommunications Network Technologies
- Keyword
- Network virtualization
- GMPLS
- Optical path
- Laboratory organization
- NTT Network Service Systems Laboratories
Overview
Recent trends in telecommunication have focused on service convergence in a shared IP (Internet protocol) network. However, innovative applications in the future are expected to have such diverse requirements that they cannot be easily accommodated in a common IP network. With our technology, we aim to create multiple virtual networks upon a common physical network infrastructure through integrated control of optical and IP networks. This will enable services to be launched quickly and operated independently.
Features
- Resource isolation in the physical layer avoids traffic conflicts between virtual networks.
- Dedicated use of dynamic optical paths supports on-demand use of gigabit-per-second-class communication.
- Resource allocation amounts and virtual network topology can be dynamically re-optimized in response to changes in traffic patterns.
- The architecture can be deployed without requiring any modification to existing routers and optical cross-connects that support the standard protocol GMPLS (generalized multi protocol label switching).
Application scenarios
- Carrier backbone networks
- Large-scale datacenter networks
- Ultrawideband services in the future such as uncompressed three-dimensional (3D) and high-definition (HD) video transmission
- On-demand wide-area virtual private network
