Implementation of the FELIX SDN Experimental Facility
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1 Implementation of the FELIX SDN Experimental Facility U. Toseef, C. Fernandez, C. Bermudo, G. Carrozzo, R. Monno, B. Belter, K. Dombek, L. Ogrodowczyk, T. Kudoh, A. Takefusa, J. Haga, T. Ikeda, J. Tanaka, K. Pentikousis Gino Carrozzo, Nextworks EWSDN Workshop, Bilbao, Spain September 30, 2015
2 Outline FELIX Architecture Overview FELIX Architecture Insight Resource Orchestrators Resource Managers Monitoring System Authentication & Authorisation User Access FELIX Use-cases Summary
3 Introduction FELIX rationale Testing innovative solutions for network control calls for experimentation using large-scale testbeds Need to emulate near real-world testing conditions and allow for wide technical and industrial impact Network programmability via Software Defined Networking (SDN) and dynamic on-demand network service provisioning are key ingredients Experimental research infrastructures are a reality for this thanks to efforts in Europe, Asia, and the Americas FELIX is part of this research experimentation infrastructure line of work Future Internet Research Experimentation (FIRE) framework in EU special focus on using SDN and Bandwidth on Demand (based on the Network Service Interface NSI) for dynamic transit network connectivity
4 FELIX essentials FELIX Federated Framework Federation of SDN test-beds in Europe and Japan Technology-agnostic architecture allowing for federation of Future Internet facilities Autonomos coordination of resources at different hierarchical levels On-demand connectivity between geographically dispersed domains using the Network Software Interface (NSI) standard FELIX Management Stack (FMS) Open Source implementation of the FELIX Federated Framework FELIX test-bed Distributed experimentation test-bed FMS manages infrastructure slices over IT servers, switches and data links inter-islands FELIX experiments Realization of federation use-cases 6 use cases defined in the project to validate Federation Framework and FMS software
5 Architecture Overview Request configuration of slice(s) Users Manage slice Control slice FELIX Space to provide users with slices for their own use Users request slices to an RO RO: Resource Orchestrator RM: Resource Manager PHY RES: physical resources (testbed) User Space to run any tools and applications that a user wants to deploy to control a slice or execute particular operations
6 Architecture Overview (2) RO: Resource Orchestrator CRM: Computing RM SDNRM: SDN RM MS: Monitoring System RM: Resource Manager TNRM: Transit Network RM SERM: Stitching Entity RM AAA: Authentication, Authorisation & Accounting
7 Architecture Insight > Resource Orchestrator (RO) Design follows GENI Slice-Based Federation Architecture (SFA) Implementation partially based on eisoil framework for Aggregate Managers ( ) Agnostic communication to most FELIX components (peers): ROs and any RM Can be deployed in hierarchies for multi-region & scalability E.g. Domain1=facility Domain2=country Domain3=continent ROs in the upper layer Master ROs (e.g. EU-MRO, JP-MRO) Introduces a level to perform common operations on managed ROs or RMs (e.g. policies) Aggregates information on physical resources provided by facilities Periodic sync of resources provided by managed FELIX peers: ROs, RMs Track resources per slice Provides FELIX Monitoring System with access to gather metrics of user s resources Simple support for new managed Resource Managers
8 RO > Schema Northbound API (to client) GENIv3 Supported tools for experimenters: OMNI, jfed Southbound API (to peer): GENIv3, (others?)
9 Resource Managers > Computing RM Allows creating and managing Virtual Machines on top of XEN and KVM hypervisors (XEN-CRM, KVM-CRM) Design follows SFA/GENI Implementation extends VTAM by FP7-OFELIA project Standard APIs from experimental communities SFA/GENIv2 and GENIv3 APIs and RSpecs v3 for experimenters Compatible with OMNI and jfed (by Fed4FIRE federation project) Allows allocating (reservation), provisioning (generation), (re)starting and deleting VMs on different physical servers GUI-based administration of VMs and some networking parameters Automated procedures and improved access Multiple user log-in through public SSH keys (allows live insertion of new keys) Automatic clean-up of VM-related resources after expiration
10 CRM > Schema Northbound API (to client) GENIv3, Expedient/OFELIA Supported tools for experimenters: OMNI, jfed
11 Resource Managers > Software-Defined Networking RM Grants experimenters a portion (~flowspace) of shared SDN-enabled networking devices Design follows SFA/GENI approaches Implementation extends OFAM by FP7-OFELIA project Standard APIs from experimental communities (again SFA/GENIv2, GENIv3 APIs and Rspecs v3) Compatible with OMNI and jfed Allows allocating (reservation), provisioning (generation), enable/disable and delete rules in SDN-enabled networking devices Supports (at least) FlowVisor and (>= OpenFlow 1.0) Alternative to FOAM GUI-based administration for manual approval Automatic re-approval/re-enable can be defined Automated procedures and improved access Automatic clean-up of FlowSpaces (and rules) after expiration
12 SDNRM > Schema Northbound API (to client) GENIv3, Expedient/OFELIA Supported tools for experimenters: OMNI, jfed
13 Resource Managers > Transit Network RM Implement mechanisms for network connectivity between domains Allocation (reservation), provisioning (generation), (re)creation, deletion of interdomain links between Service Termination Points of remote networks Proxy between RO and NSI agent to set up connectivity between different domains Transit network technology agnostic (e.g. NSI, GRE, etc.) OGF Network Services Interface Connection Service (NSI-CS) as primary/default southbound interface choice Standard APIs from experimental communities (again SFA/GENIv2, GENIv3 APIs and Rspecs v3) Northbound API (to client) GENIv3, Expedient/OFELIA Southbound API (to NSI peers) NSI Connection Service 2.0 providers/aggregators
14 Resource Managers > Stitching Element RM Solves low level data plane issues when interconnecting SDN domains with other kinds of Transport Networks SDN domain and Transport Network interconnected by a data plane proxy device ( stitching entity ) Switching SDN traffic to/from VLAN-based services of Transport Networks Fully dynamic services: GLIF NSI, GÈANT BoD AutoBAHN Static services (created by mgmt procedures): GÈANT Plus Layer2, GÈANT MPVPN Switching SDN traffic to/from tunnels: GRE (in progress) Low level data plane issues addressed Taking into account limitations of VLANs availability at Transport Network domain boundary Both SDN domain and many Transport Networks connected to stitching device by one or more ports Managing mappings between Transport Network VLANs and SDN domain VLANs Managing mappings between ingress (TN) and egress ports (SDN)
15 SERM > Schema Northbound API (to client) GENIv3, Expedient/OFELIA Southbound API (towards stitching entity) RPC interface of OpenFlow POX Controller HTTP/REST interface of OpenFlow Ryu Controller
16 Certificate-based AAA for SDN experimental facilities (C-BAS) Realizes a Certificate-Based ClearingHouse Serves as a trust anchor Implementation is based on eisoil Implements various services through plug-ins Service Registry (SR) Maintains a list of registered services like MA, SA etc. Member Authority (MA) Manages and asserts attributes about particular members Maintains a set of members, SSH & SSL keys and certificates Slice Authority (SA) Creates new slices, updating existing slice, maintains list of slices Generates and offer slice credentials Project Service (PS) Maintains list of projects Asserts the existence of projects and the roles of members Logging Service (LS) Stores transaction details for accountability
17 C-BAS > Schema Member Authority Plug-in Container User Registration service Service Access Interface Service Registry Database interface Slice Authority, Project Authority
18 User Access A number of user-agent tools can be used to obtain different support: Request and manage resources (experimenters) Manage resources and environment (administrators / island managers) Test behaviour of RMs (developers / island managers) FEATURE jfed OMNI client Expedient Experimenter scope Manage resources through GENIv3 Manage resources through GENIv3 and SFA/GENIv2 Check physical topology, constructed slice and metrics from resources Experimenter access GUI, RSpec RSpec GUI Manage experiments through GENIv3 Every RM, RO Every RM, RO - Administrator management and developer testing Automated API testing tool - Check logs of XEN-CRM, SDNRM; remove VMs of XEN-CRM
19 FELIX Experimental Facility Source:
20 FELIX Use case: High Quality Media Transmission Goal examine long distance network capabilities for high quality media streaming Two studies performed examining long distance network capabilities and evaluating user experience (QoE) examining a new intelligent network application to control high quality media streaming Results from experiments estimation of network capacity needed for transmission of the high quality media (boundaries based on user QoE) real time monitoring system of media traffic to observe possible stream degradations due to traffic congestion on the paths smart network application for automatic network reconfiguration and adjustments during the degradation of parameters
21 High Quality Media Transmission implementation FELIX Infrastructure components SDN resources OpenFlow switches in 8 Islands (EU and Japan) UltraGridv3 software for media streaming/ decoding/visualization Rate-limiter for capacity configuration over the links Monitoring system gathering information about media and network conditions Ryu SDN Controller for OpenFlow path configuration over the network HQmon - SDN application for path reconfiguration based on the monitoring parameters (FPSs, movie frame losses) Experiment GUI for setting up the experiment conditions and visualizing of its current state >> Visit our demo space
22 Islands inteconnection, an inter-continental headache Backbone VLAN interconnections for FELIX project
23 Other use cases in progress Follow-the-sun / follow-the-moon principles Data Pre-processing on Demand Disaster recovery by migrating IaaS to a remote DC Data Mobility Service by SDN Technologies (Inter-Cloud)
24 Summary FELIX facilitates the federation and integration of different network and computing resources controlled via SDN and Network Service Interface Connection Service (NSICS) in a multi-domain heterogeneous environment spanning Europe and Japan FELIX designed and implemented a generalized control framework where users can request, monitor and manage a slice provisioned over distributed and distant SDN experimental facilities FELIX framework uses a combination of recursive and policy-based hierarchical configurations for orchestration, request delegation and inter-domain dependency management FELIX orchestration and resource management open-source software is currently deployed in a number of interconnected SDN island across Europe and Japan We re now running experimental validation in our federated heterogeneous testbed using selected use cases Our goal is to deliver architecture design, FELIX Management Stack software and lessons learnt on use cases Access to our infrastructure by external experimenters under discussion/development
25 Thank you Questions?
26 PARTNERS Poznan Supercomputing and Networking Center Poland National Institute of Advanced Industrial Science and Technology Japan Nextworks Italy Fundacio Privada i2cat, Internet I Innovacio Digital A Catalunya Spain SURFnet bv Netherlands European Center for Information and Communication Technologies Gmbh Germany iminds VZW Belgium KDDI Japan
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