DTN Network Management Will Ivancic [email protected] 216-433-3494 Ed Birrane...

DTN Network Management

Will Ivancic

[email protected]

216-433-3494

Ed Birrane

[email protected]

443-778-7423

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,

DublinStephen 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 NMStart by bounding the NM problem, defining how/why of NMData definitions should be guided by this analysisUsage, velocity, and aggregation of data based on what data we collectApplications should be data drivenSignificant prototyping is needed to flesh out these guidelines.

We examine each of these areas in turn.

SystemArchitecture

Data Definition

Data Usage

ApplicationArchitecture

Prototyping,M&S

Guides Bounds Defines Drives

RefinesRefinesRefinesRefines


System ArchitectureProposed 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!


System ArchitectureOpen 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 SNMPWhat other subsystems affect (naming) or are

affected by (routing) NM?


Data DefinitionIdentify types of data to be collected

Fault Monitoring, Responses, ReportingConfiguration (Remote and Local)AccountingPerformance (Esp. for dynamic algorithms)Security

StructureMetadata: Do data have verbosities? Pre-defined

velocities?Formatting: MIBs? YANG?


Data Definition

Open QuestionsDo 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?


Data Usage

Guidance on when to collect dataData 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


Application Specification

Application architectureLocal 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.


Prototyping and M&SPrototyping

Use of NASA DTN Engineering Network (DEN) testbed and DTNbone to test network management

Coding examples to flesh out interfacesMIB Implementationsrmon/netconf modifications

Modeling and SimulationExpected network management overheadMonte Carlo simulations of network disruptionsNeed emulation environment for DTN

DEN and DTNBone Suggestions welcome!


Network ManagementRequirements 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 ManagementRequirements 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 ManagementRequirements 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-email DTN-chat Bundle Count / Traffic Measurement (NEW Request)

DTNGW

Rover

Habitat

ScienceSensor

1 Mbps

256 kbps

128 kbpsEARTH

MOON

L2Relay

LunarRelay

Always ON ?

Intermittent

Multiple Switched Ground Stations emulated as one single DTN GW

InternationalPartner #2

InternationalPartner #1

Switched

DTNGW

L2Relay

Habitat

LunarRelay

Rover

Sensor

SW

SW

CS

CS

CS

CS

Real-time Control Plan via IPv6

CS Channel Simulator(Rate, BER and Connectivity)

DTN Data Flow

NASA DEN Phase-0 Scenario

GRCEVAION

JSCRoverION

GSFCW. SandsION|LTP

GSFCL. RelayION|LTP

JSCAltair

ION/UDP

MSFCMCC/POCC

DTN2/[TCP|UDP]JPLXXX

DTN2/[TCP/UDP]

APLXXXION

Phase-0Continuous ConnectivityStatic routingNo BP Security

Delay: Lunar 3 secBW: 128kbps [>100Mbps]BP/LTP/Encap orBP/LTP/IP/Encap

Delay: 100s msec?BW: 72/k/192k

UDPTCP

BPUDP

BW: 10Mbps

StoryEVA sending some sort of telemetry (different kinds to APL and JPL)Understand that EVA data wouldn’t really go to APL/JPL

BPUDP

BPLTPUDP

BPLTPUDP

BP/LTP/Encap or BP/LTP/IP/Encap?OhioU has TCPCL for ION?

BW: 10Mbps

JPLAthleteDTN2

Limit the amount of available storage (later)

Data Mule .-------. |Bundle | .-------. |Agent 1| |Bundle | .--o `-------' /''\. |Agent 5| / `. `. .' '._ .-----.,--. `-------' / | \ | `.._|Data | ``. \ / `. / |Mule | `-. \ ' |_ | `-----' `. ,/ | | Movement \.,.--- | ' <<======= | / | / | | Path Well .-------. | | Traveled |Bundle | | | |Agent 3| | / ...._ `-------' \ | | `. / `\ \ _.. | `./ .' `' `---`... `.._ `-. ,' .-------. _, ". ``. \ _,,' |Bundle |,' `. \ `--...,-'. |Agent 2| `. `. | `-------' `. _ \ .-------. ' `'-...._ | |Bundle | `"--------' |Agent 4|

LEO Sensor Satellite +-------+ _ +-------+ | |:_:| | +-------+ +-------+ ,' `. Space/Ground ,' `-. Space/Ground Link 1 ,-' `. Link 2 ,' `._ ,' `. ,' Connect Connect `._ _,' T1 T2 `. . ' ` / Ground `. ..,' Ground Station /\'' ___...------'''''''------....__ /\ Station 1 /__\.,--' `'--./__\ 2 _,,-' ._ _, `--.._ ' `. Ground/Ground Ground/Ground ,' ' `-. Link 1 Link 2 ,-' `._ ,-' `. _,' ' .-----------. | Data | |Collection | | Center | `-----------'

Low Earth Orbiting Satellite

Unmanned Aeronautical Vehicle (UAV)

. ,' `._ NORTH ,' `._ POLE ,-' `-.__ _,,-' Above 60 Degrees `'------''' +-------+ No Ku-Band |Iridium| Connectivity .'--'. +-------+ |UAV | XXXXXXXXXXXXXXXXXXXXXXX `-++-' XXXXXXXXXXXXXXXXXX X +--------------+ XX GEO X +--------------+ XX GEO Bent Pipe X || X Bent Pipe Relay Satellite X +--++--+ X Relay Satellite +-----+ _ +-----+ XX +------+ X +-----+ _ +-----+ | |:_:| | XX X | |:_:| | +-----+ +-----+ X X +-----+ +-----+ . XXXXXXXXXXXXX `: . . `. `. . _, \ /\''' .,'/\ ,' \/__\ /__\,' \ Ku-Band Ku-Band ,-' \ ASIA North / \ PACIFIC America ,' | OCEAN ,' NORTH ASIA | / AMERICA | ,' | / \ '

None ASCII Art - UAV

DTN Network Management Will Ivancic [email protected] 216-433-3494 Ed Birrane...

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