E2Epi piPEs Update Eric L. Boyd

2 Decomposing the Monolithic Measurement Architecture

3 BWCTL (Jeff Boote)

4 OWAMP (Jeff Boote)

5 NDT (Rich Carlson) Network Diagnostic Tester Developed at Argonne National Lab Ongoing integration into piPEs framework Redirects from well-known host to “nearest” measurement node Detects common performance problems in the “first mile” (edge to campus DMZ) In deployment on Abilene:

6 E2Epi Network Performance Workshop Announcement: Internet2 has begun a new series of workshops Focus: Performance Tools BWCTL, OWAMP, NDT Installation Use Integration into IT support process Approach Hands on Interactive

7 Workshop Deliverables Working installation of BWCTL, NDT, and OWAMP at GigaPoP Working installation of BWCTL, NDT, and OWAMP at each campus Exchange of “keys” among campuses and GigaPoP Community of Collaborative approach to performance diagnosis

8 Workshop Host / Audience Each workshop has a host, expected to be a campus / GigaPoP Audience is network engineers from a GigaPoP and associated campuses Host must identify audience, make invitations, provide networking

9 Workshop History Developed/taught by Internet2 PAT Team (Spring ’05) SOX, hosted by GaTech (March ’05) wk/gatech/agenda.html wk/gatech/agenda.html CENIC, hosted by UCLA (June ’05) Joint Techs – Vancouver (July ’05) Orthogonal to focus on GigaPoPs Good opportunity to “kick the tires” After that, TBD …

10 Hosting a Network Performance Workshop Contact: Eric Boyd Further Details: wk/workshops-list.html wk/workshops-list.html

11 Performance Measurement: Project Phases Phase 1: Tool Beacons (Stable) BWCTL (Complete), OWAMP (Complete), NDT (Complete), Deployment Workshops (In Progress), Phase 2: Measurement Domain Support (Working Prototype) piPEs Alpha (Prototype), Abilene Measurement Infrastructure Deployment (Complete), Phase 3: Federation Support (Current Focus) AA (Prototype – optional AES key, policy file, limits file) Discovery (Measurement Nodes, Databases) (Prototype – nearest NDT server, web page) Test Request/Response Schema Support (Prototype – GGF NMWG Schema)

12 Metcalf’s Law Robert Metcalf's law states that the "value" or "power" of a network increases in proportion to the square of the number of nodes on the network. Our version: The value of a performance measurement framework scales with the square of the deployment footprint

13 Vision Statement Goal #1: A Federation of Measurement Frameworks Approach: Develop a common language for measurement frameworks Metcalf’s Law: Successful new measurement frameworks will be designed to speak the language Goal #2: A Measurement Framework Federation Approach: Develop a decentralized, locally administered, participatory framework Metcalf’s Law: Autonomous network operators gain more value by joining than “going alone” These goals are not mutually exclusive …

14 Federation of Measurement Frameworks Working within the GGF NMWG Version 1 of the schema is all but “done” Version 2 of the schema is under development Efforts such as piPEs, AMP, MonALISA, and NLANR DAST’s Advisor are interoperable

15 Measurement Framework Federation (1) Tool beacons for on-demand and regularly scheduled tests are released: BWCTL ( Resource Allocation Broker for NLANR DAST’s Iperf ( NDT ( OWAMP ( And deployed: dir.html dir.html 17 organizations listed as of today

16 Measurement Framework Federation (2) piPEs Measurement Framework alpha is released: And deployed on Abilene Observatory: Shows results of 11 x 11 mesh of Iperf and OWAMP tests among Abilene nodes Anyone can test to Abilene from their own BWCTL (need a key) or OWAMP node Federation of NDT servers deployed on Abilene, with redirect to nearest server

17 Internet2 / GÉANT2 JRA1: Exchange of Ideas UCL E2E Monitoring Workshop tml tml Internet2, DANTE, CANARIE biannual meetings (12/03, 07/04) and ESnet (01/05) Transatlantic Performance Monitoring Workshop 2004 (03/04) orkshop.html orkshop.html Brussels Workshop – Architecture (09/04) Zurich Workshop – Prototype (04/05) Ann Arbor Workshop – Prototype (05/05)

18 Internet2 / GÉANT2 JRA1: Working Together Contribution to the GGF NM-WG Both Internet2 and Dante provide a significant contribution to the effort (four to five people contributing regularly, 2 from Europe, 2-3 from US) Contribute to design, early adoption and prototyping, feedback Installation/evaluation of tools Internet2 OWAMP, Internet2 BWCTL, Internet2 piPEs framework DFN IPPM Caltech CERN Demo March ’04 and November, December ‘04 Haystack, USA Onsala, Sweden

19 Internet2 / GÉANT2 JRA1: Joint Development (1) Rather than build two separate interoperable measurement frameworks, why not jointly develop a single measurement framework? Steps: Agree to joint open source development √ General Framework Design √ Prototype (Summer ’05) Detailed Design Implementation Seek participation from NRENs & campuses, particularly Internet2 & ESnet members Twice weekly conference calls Very active mailing list 2-3 face-to-face meetings per year

20 So what are we building? You could call it piPEs v2.0 or GFD or “SONAR” Working Name: “Services Oriented Network ARchitecture” Plus sonar is used to “ping” :-D A Services-Based Measurement Framework for Building Dynamic, Self- Organizing Performance Communities

21 Design Goals Services-oriented measurement framework Dynamic, self-organizing characteristics identical to that of the network as a whole Recognize and facilitate the ability of independent network entities to set policies and limits on the use of measurement resources locally Encourage and facilitate the use of measurement resources by users interested in network paths that traverse remote administrative domains Facilitate the widespread adoption of new performance tools in a broad, E2E framework Allow framework to evolve over time

22 Services Oriented Architecture In a simple scenario, each domain consists of a set of services. All services are well defined and independent Services within a domain represent the domain with the help of Authentication and Authorization – they respond to requests only if the Authentication service of the domain has authenticated the user and the policy of the given service authorizes it.

23 Basic Services Lookup Authentication Measurement Point Measurement Archive Resource Protector (Authorization) Transformation Topology

24 Lookup Service Initial discovery Multicast / Anycast Well known servers Required servers (by administrative configuration) Previously detected servers (organized in a P2P network – lookup services find out about other lookup services… Lookup is not simply by name Type of service, Community, Network path, Organization, Type of authentication required, etc. Response contains Contact information, Available services, Authentication required, etc.

25 Authentication Service Registers with lookup Client requests “kind” of authentication token based on lookup results Authentication grants time-limited token used to request service Attribute service created to protect privacy and support role-based authorization Allow new measurement points to be created as easily as possible Allow new data consumers access as easily as possible

26 Measurement Point Service Service to wrap measurement tools Interacts with resource protectors to protect shared resources Registers with lookup service and specifies the authentication credentials required to interact Registers with lookup service to indicate types of tests it can perform Accepts requests for tests

27 Measurement Archive Service Subscribes to some set of data – either from a measurement point or from an aggregation service May publish the derived data sets

28 Resource Protector Service Enables centralizing of resource allocation (not globally - this is within spheres of administrative control) Multiple measurement points interact with a given resource protector to limit the shared resources Resource protectors can be chained to control aggregations of shared resources across larger frameworks.

29 Transformation Service Pipelines data between other components in the framework Subscribes and Publishes data Provides: Aggregation Correlation Caching Duplication Filtering Translation Event generation Data analysis

30 Topology Service Special case of a Transformation Service Network topology information is necessary for measurement system optimization Creates overviews/”maps” to illustrate network Layered approach (domain level through to wavelengths and physical level) Collects raw data from measurement points and pushes topology information into the measurement archive (allows topologically based queries by lookup service)

31 Summary Open Source Shared Development Sourceforge-based Sub-Projects Modified Berkeley Licensing (?) Common Service-based Architecture Architecture spans superset of deployment use cases ~Quarterly face-to-face meetings ~Twice-Weekly phone conferences Split development according to interest, resources

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