ADRENALINE testbed services
The ADRENALINE testbed is open to third parties. - One of the goals of the Optical Networking Area is to open the ADRENALINE testbed® to collaborating institutions and third parties, complementing the Technology Transfer Activities of the area. By opening the testbed, a third party institution may have access to ADRENALINE testbed hardware and software, typically at CTTC premises.
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Wavelength-switched optical network
IP/Ethernet/SDH network performance testing
By using ADRENALINE testbed facilities, it is possible to quantify and evaluate client layers of the optical infrastructure of dynamic wavelength switched optical network in order to obtain meaningful data (packet loss, delay, BER) from and end-to-end client perspective. Dedicated testing equipment such as our Agilent Router Tester and / or Navtel Interwatch 96000 can be configured to generate and correlate a wide range of optical client interfaces (1/10 Gbps Ethernet LAN/MAN, SDH) etc.
Measurement of physical optical impairments
The ADRENALINE transport infrastructure can be used to model, measure and quantify physical layer degradations (e.g. PMD, CD,...) in dynamic wavelength switched networks. The ADRENALINE testbed facilities include testing and measurement equipment, which can be used for that purpose, including
- Communications signal analyzer and digital oscilloscope up to 2.5 and 10Gbps
- Optical spectrum analyzer
- Tunable Laser sources
- OTDRs
- VOAs
- Lightwave multimeter
- PMD and CD analyzer
- PMD emulator
Test and Validation of future transport services
Dynamic wavelength switched optical networks offer end-to-end lightpaths, transparent to the format and payload. This allows network operators and researchers to test new future services, such as uncompressed High Definition TV (HDTV) or new NGN services (triple-play, voice data and video, optical GRIDs, etc.)
Test and Validation of Network equipment (vendors and manufacturers)
Both Client equipment (IP routers, Ethernet switches, SDH cross-connects, ...) or Core equipment (optical nodes or specific optical components) can be interconnected using the ADRENALINE network, in order to, for example, verify correct optical transmission over dynamic (SPC or SC) end-to-end lightpaths.
GMPLS-enabled control plane
Control Plane Scalability and Stability
Using both in-house developed applications and a wide-range of available tools, a GMPLS control plane can be intrumented in order to evaluate its scalability, stability, or convergence time. We believe that measurement-based research, and being able to numerically quantify key aspects of the control network (DCN) are key factors when globally assesing the applicability of a (GMPLS) control plane.
Interoperability and Conformance Testing
Using ADRENALINE testbed facilities, there are two methods to assess operability and to perform conformance testing:
- By means of the Navtel Interwatch 96000. The Navtel interwatch includes a set of conformance tests, and the possibility of defining your own conformance tests using the TTCN3 language.
- By means of our own implementation. We aim at developing ADRENALINE modules following the published standards of the normalization bodies such the IETF or the OIF. Significant efforts are made in order to adhere to the aforementioned documents. Consequently, we are confident that our implementation(s) can be used to quantify the degree of interoperability and conformance of third party implementations.
Performace evaluation of dynamic lambda-services
Considering a GMPLS controlled wavelength switched optical network as an infrastructure on top of which a diversity of heterogeneous services can be offered, the ADRENALINE testbed can be used to evaluate key performance indicators, evaluating the coupling between the service and the network. Using our ADNETConf / ADNETGen software applications, it is possible to use the existing control plane implementation and algorithms (unidirectional and bidirectional provisioning, provisioning with OSNR guarantees, and provisioning with 1+1, 1:1 and shared path protection) in order to evaluate your own complex and diverse network topologies, not constrained on the number of links or nodes. Users of the testbed willing to evaluate planned topologies and network deployments may assess them from an experimental research point of view.
The evaluation of a particular topology involves the design and conception of a realistic network model, known as an scenario, which includes, at the very least, the number of nodes, the number of links, TE attributes per link (for WSON, number of wavelengths and bandwidth) and control plane propagation delays. A software application automates the deployment of the scenario on a pool of connection controllers. In consequence, the evaluation of the scenario involves performance data and meaningful results coming from real GMPLS protocol stacks and processes in an emulated network topology. These results can help when planning a new optical transport network, or to have numerical data on the scaling properties of the network.
