Transient Network Architecture

http://hdl.handle.net/2118/tna

Joud KhouryUniversity of New Mexico, ECE department

CNRIHandle System Workshop, Washington DC

June 21

Credits

• Funded by NSF Future Internet Design (FIND) Grant CNS-0626380

• Website: http://hdl.handle.net/2118/tna• People

Henry Jerez, CNRI Joud Khoury, Chaouki Abdallah, Greg

Heileman, Pramod Jamkhedar, Wennie Shu, Jorge Crichigno, Jorge Piovesan – UNM

Outline

• Overview of TNA• Mobility and Persistent Identification• How/where is it applied?

InterMesh instantiation of TNA VoIP using handles Digital Rights Management within TNA

• References

What is TNA

• It is an architecture that postulates that: All networks can be reduced to a

particular case of persistently identified, transient, mobile, abstract entities that group into particular association

• It is an abstraction based persistent communication network for transient digital entities

TNA Principles

• Mobility and Ad Hoc characteristics as basic requirements

• Abstraction as the basis of internetworking and functionality

• Persistent Identification

Mobility and Ad Hoc characteristics

• Mobility is the ability of nodes to change association without breaking referential integrity.

• All components of the architecture are to be considered transient and mobile The components must operate in both

Connected = Full cohesive communication with the larger structure is assumed

Disconnected = limited or no connectivity with other groupings is possible

• While consolidation is possible; all processes, services and mechanisms should assume a mobile deployment environment.

Persistent Identification

• Persistent Identifier=Handle• Persistently identify:

globally Digital entities: Network components Communicating entities

Services Processes

• Identification is based on a set of unique naming spaces with a distributed resolution on a need to know basis

How do we use PI’s

• We identify all network entities with persistent identifiers

• We use these identifiers to route all traffic in the network

• We identify particular network associations with persistent identifiers

• We provide secure distributed administration

• This enables seamless mobility

How do the pieces fit together

What can it do

• Enables new transmission paradigms• It can move functionality at will • Allows current and future network to

coexist and seamlessly integrate

Current Research Tracks

• The MESH Network AoI Instantiation – InterMesh and voice over Intermesh

• Agent Coordination• Basic DRM expressiveness

InterMesh MotivationVarious types of local networks; WMNs, WSNs, PANs.WMN particularly interesting? Advantages, connectivity models, suitable for WLAN, WMAN, WVAN, include ad-hoc, …

A growing need for inter-networking among heterogeneous networks

IP? Some limitations: overloading the address, absence of trustworthiness

Fundamental design shifts needed -> InterMesh

Motivation

Mesh Interworking

Topology learningRouting/forwarding

MeasurementManagement

QoS

Medium Access Control

IEEE 802.11 PHYL1

L3

A growing need for inter-networking among heterogeneous (mesh) networks

L2 – 802.11s(expected)

Persistent Identification (PI) Layer

Architecture model

Core

AoI-1

AoI-2

AoI: Area of Influence

Node

Architecture

Core

AoI-1

AoI-2

AoI: Area of Influence

Agents

Nodes

PI Entity

Pi-3

Pi-4

PI

L2

L1

Pi-1

Pi-2

Pi-1 Pi-2

Ref

NeutralEnvironment

Agents

Core

AoI-1

Agent 1

Agent 2

Agent 3

AoI-2 AoI-3

How does Pi-1 know Pi-2 location?

A closer look at local delivery

Address resolution – ARP

Pi-1Local A: AA

Pi-2Local A: ZZ

Internet

AoI-1

Agent 1

Agent 2

Agent 3

AoI-2 AoI-3

Inter-network

Pi-1Local A: AA

Pi-2Local A: ZZ

Pi-3Local A: BB

1. Is Pi-3 in Ao1-1? ARP

2. Pi-3 is not in the local network -> send the data to the Agent2

3. Agent2 routes the data

4. Agent3 sends the data to BB

Agent 3PI Local A

… …

Mike BB

… …

Pi-3

Core

AoI-1 Agent 1

Agent 2

Agent 3

AoI-2 AoI-3

Mobility

Pi-1Local A: AA

Pi-2Local A: ZZ

Pi-3Local A: BB

A proactive discovering protocol to keep bound with the core

SIP Proxy/Registrar(10.200/fproxy)

Foreign Domain: fdomain

Previous work – VoIP Sessions and Mobility

SIP Proxy/Registrar(2118/hproxy)

Home Domain: hdomain

Sessions and Mobility

3User: r_userHandle: 2118/r_user

SIP Proxy/Registrar(2118/hproxy)

SIP Proxy/Registrar(10.200/fproxy)

Home Domain: hdomain

Foreign Domain: fdomain

Traditional traffic flowProposed traffic flow

c

INTERNET

Handle System

REGISTER

correspondent(c_user)

Foreign Domain: cdomain

SIP Proxy/Registrar

1

3

2

a d

H-SIP Abstraction

• SIP users and Proxy servers identified with handles instead of URI and Domain names eliminating any domain binding

User Handle

Proxy Handle

Registration - Measurements

• Average Registration times 10,000 samples dispersed over 10 days cA tt

ms

5

39

Call Establishment - Measurements

is the diff in cumulative RT delay

Note: Presumably large geographical separation between the roaming user and his home server

We outperform as long as > x

IDEAIndirect DRM Evaluation

Architecture

• Rely on persistent identifiers to convey Rights information

• All content and Users identified with Persistent Identifiers. All licenses and rights identified with persistent identifiers

• Use a dynamic evaluation mechanism that relies on a layered rights expression and enforcement model

Layered Model

• Persistent identifiers allow referential integrity at every layer

• Layers are not only logically but physically independent

Dynamic evaluation

• In TNA where even services are mobile; DRM evaluation along with validation resources are based on persistent Identifiers

• Persistent Identifiers weave the different layers and services together

• DRM computation is therefore a heterogeneous diverse ecosystem rather than a vertically integrated solution

TNA principles and Rights Mobility

• Based on TNA principles all components of the architecture are mobile and transient ness is assumed

• The system can then use opportunistic connectivity and realm based interconnection to conform new enforcement areas

• The System provides first class presence to all members and their interests: From the owned to the final consumer and provides them with the flexibility they need to operate in a more real environment.

Current Application models

• Heterogeneous License compatibility and evaluation

• Intrinsic authorization and validation• New features and traditional

behaviors: Loans Second level market New Business models

References

• TNA H. Jerez, J. Khoury, and Chaouki Abdallah, “The Transient Network

Architecture”, in arXiv.• InterMesh instantiation of TNA

J. Khoury, J. Crichigno, H. Jerez, C. Abdallah, W. Shu, and G. Heileman, “The intermesh network architecture,” under review IEEE Network Magazine.

• VoIP using handles J. Khoury, H. Jerez, C. Abdallah “Efficient User Controlled Inter-Domain SIP

Mobility Authentication, Registration, and Call Routing”, to appear in 1st International Workshop on Security and Privacy, SPEUCS 2007, Philadelphia, PA, August 2007.

J. Khoury, H. Jerez, C. Abdallah “H-SIP: Inter-domain SIP mobility: Design”, in Consumer Communications and Networking Conference, CCNC 2007, Las Vegas, NV, Jan 2007.

• Digital Rights Management within TNA G. L. Heileman and P. A. Jamkhedkar, DRM Interoperability Analysis from the

Perspective of a Layered Framework, Proceedings of the 5th ACM workshop on Digital Rights Management, Nov. 2005, Virginia, USA.

P. A. Jamkhedkar, G. L. Heileman and Ivan Martinez-Ortiz, The Problem With Rights Expression Languages, Proceedings of the 6th ACM workshop on Digital Rights Management, Oct-Nov. 2006, Virginia, USA.