DTN Network Management Will Ivancic Ed Birrane

Several Institutions working on NM MITREKeith Scott UMBCDeepinder Sidhu SNMP and the degree to which Protocols, software, and MIBs can be ported to DTNs Ohio UniversityHans Kruse Working on NM protocols and constructing a DTN network to emulate space-based scenarios to derive NM needs. NASA Glenn Research Center William Ivancic Managing remote nodes for N4C project. Trinity College, Dublin Stephen Farrell Discussion of deep-space network management mechanisms developed and used on EPOXI during DINET. NASA JPLScott Burleigh Network Management Architectures for DTNsJHU/APLEd Birrane Ensuring new BPA implementation includes support for emerging NMS capabilities. Also, generting a draft DTN NM MIB. BBNJosh Bers Area of ResearchInstitutionName Source: Ed Birrane, APL

Scope of Work Five major areas identified for NM Start by bounding the NM problem, defining how/why of NM Data definitions should be guided by this analysis Usage, velocity, and aggregation of data based on what data we collect Applications should be data driven Significant prototyping is needed to flesh out these guidelines. We examine each of these areas in turn. Source: Ed Birrane, APL

System Architecture Proposed Documents CONOPS / Use Cases / Motivations Under development by GRC Need use cases geared specifically at Network management  Fault response, remote configuration, etc… Network Characteristics Under development by APL, review needed! Network Requirements (High Level)‏ Started by APL, help wanted! Data/Control flows Volunteers! Source: Ed Birrane, APL

System Architecture Open Questions Do we use Bundles to communicate network management data? Really probably no choice But, should be able to use out of band channels also What conops require push versus pull? Although we realize a pull in not a interactive query such as SNMP What other subsystems affect (naming) or are affected by (routing) NM? Source: Ed Birrane, APL

Data Definition Identify types of data to be collected Fault Monitoring, Responses, Reporting Configuration (Remote and Local) Accounting Performance (Esp. for dynamic algorithms) Security Structure Metadata: Do data have verbosities? Pre-defined velocities? Formatting: MIBs? YANG? Source: Ed Birrane, APL

Data Definition Open Questions Do we recommend maturing existing approaches? Rmon? Netconf? What features/functions support critical configuration (and rollback) for DTN nodes? What is the criticality of this information in terms of mission risk? Source: Ed Birrane, APL

Data Usage Guidance on when to collect data Data collection heuristics Use cases Data velocity, verbosity settings Requirements for data aggregation Usefulness of data to external nodes Algorithms for adjusting when to aggregate data Source: Ed Birrane, APL

Application Specification Application architecture Local Data Collector Populates data stores at the DTN node Exists at the Application layer above the transport layer. Collects high speed data. Data Aggregator Samples locally collected data Emits data over network as necessary Receives network management data from remote aggregators. Source: Ed Birrane, APL

Prototyping and M&S Prototyping Use of NASA DTN Engineering Network (DEN) testbed and DTNbone to test network management Coding examples to flesh out interfaces MIB Implementations rmon/netconf modifications Modeling and Simulation Expected network management overhead Monte Carlo simulations of network disruptions Need emulation environment for DTN DEN and DTNBone Suggestions welcome! Source: Ed Birrane, APL

Network Management Requirements Document DTN Scenarios Deep Space Mars Relay Simple Sensor Networks Data Mule Rapid Disruption Low Earth Orbiting Sensor Satellite Geostationary Bent Pipe Relay Satellite Unmanned Aeronautical Vehicles Bundle Processing Bundle Statistics Bundle Fragmentation

Network Management Requirements Document System Characteristics Convergence Layers Internet Protocol  TCP/IP  UDP/IP  SCTP/IP CCSDS  Licklider Transport Protocol Bluetooth Removable Storage Multi-Homing DARPA Dynamic Spectrum Access (DSA) Radio Deep Space / Proximity Radios Fixed Rate Bandwidth On Demand Processing Power Onboard Storage

Network Management Requirements Document Routing Name Resolution Local and Network Time Security Multi-layer Security IP Radio DTN General Requirements Local Network Management Requirement for Local Network Management..... Rationale for Local Network Management Remote Network Management Requirement for Remote Network Management.... Rationale for Remote Network Management.....

Utilities – beginnings of NetMgt (Make utilities interoperable between ION and DTN-2) DTN-ping DTN-send/receive DTN-traceroute DTN-perf DTN-heartbeat DTN- DTN-chat Bundle Count / Traffic Measurement (NEW Request)

DTN GW Rover Habitat Science Sensor 1 Mbps 256 kbps 128 kbps EARTH MOON L2 Relay Lunar Relay Always ON ? Intermittent Multiple Switched Ground Stations emulated as one single DTN GW International Partner #2 International Partner #1 Switched

DTN GW L2 Relay Habitat Lunar Relay Rover Sensor SW CS Real-time Control Plan via IPv6 CS Channel Simulator (Rate, BER and Connectivity) DTN Data Flow

NASA DEN Phase-0 Scenario GRC EVA ION JSC Rover ION GSFC W. Sands ION|LTP GSFC L. Relay ION|LTP JSC Altair ION/UDP MSFC MCC/POCC DTN2/[TCP|UDP] JPL XXX DTN2/[TCP/UDP] APL XXX ION Phase-0 Continuous Connectivity Static routing No BP Security Delay: Lunar 3 sec BW: 128kbps [>100Mbps] BP/LTP/Encap or BP/LTP/IP/Encap Delay: 100s msec? BW: 72/k/192k UDP TCP BP UDP BW: 10Mbps Story EVA sending some sort of telemetry (different kinds to APL and JPL) Understand that EVA data wouldn’t really go to APL/JPL BP UDP BP LTP UDP BP LTP UDP BP/LTP/Encap or BP/LTP/IP/Encap? OhioU has TCPCL for ION? BW: 10Mbps JPL Athlete DTN2 Limit the amount of available storage (later)

Mars Relay

Data Mule

Low Earth Orbiting Satellite

Unmanned Aeronautical Vehicle (UAV)

None ASCII Art - UAV