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Test-beds of the EU project NOMAD

UoBR(ComNets), {koo,ajk,aust}@comnets.uni-bremen.deTCOM, {detken,knmanju}@telscom.ch

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Table of Content

• Scenarios• Test-bed in Bremen• Test-bed in Basel• Service Discovery• Test-bed connectivity• Next steps

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Scenarios

1. Discovery and seamless combination of services: concentrates on the service related aspects of NOMAD. Issues like transparent service discovery and automatic composition are here the main focus.

2. Mobility in integrated networks: concentrates on the integrated network related aspects of NOMAD. Issues like transparent roaming and usage of the best available bearer technology are here strongly represented.

3. Combine NOMAD functionaility: attempts to provide a combined view of the whole NOMAD platform by describing the usage of transparent service discovery mechanisms over an integrated network platform.

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Discovery and seamless combination of services

1.Locate customerTAXI

TAXI

Customer

3. Locate/Informtaxi

GPS

OngoingGet Position

Wirele

ss

Service Locator

Internet

2. Locate/book hotel

TAXImovement

“Get me to a hotel room”

OngoingGive Position

Hotel

4. Pickup Customer

5. Take Customerto hotel

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Mobility in Integrated Networks

Next Position

Internet

802.11GSM

FAFA

FA HACP

MovementNext Position

Ethernet

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Objectives of the field trials

• To verify that all components developed in the frame of the project are compatible with each other and can seamlessly interoperate (i.e. IPv4, IPv6)

• To verify that the platform developed can offer indeed to the end-user the agreed services with the expected performance and quality

• To test the impact of the various bearer technologies (WLAN, Bluetooth) to the performance of the system.

• To verify that the proposed NOMAD architecture for service discovery is not only operational but also effective

• To evaluate the operation and performance of the NOMAD platform and propose future enhancements

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NOMAD Test-bed connectivity

I n t e r n e t(IPv4/ IPv6)

Service DiscoveryTest-bed at BIBA

Test-bedat Telscom

Test-beds at ComNets

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• Major features:– IP based (IPv4 & IPv6)

– Multi-structured (Flat & Hierarchical)

– Mobility support (for IPv4 and IPv6)

– Ad-hoc networking capability

– Simulation capability for multiple foreign networks

– Connectivity through multiple bearer technologies (wireless & wireline)

IPv4 Test-bed in Bremen

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IPv4 Test-bed in Bremen implementations

• Stationary test-bed

• Mobile test-bed (Easy to transport for conferences, workshops and exhibitions)

• Ad-hoc test-bed

• Bearer Technologies– Ethernet

– WLAN (802.11b)

– GPRS

– GSM

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IPv4 Test-bed Overview

Stationary Test-bed Mobile Test-bed

Correspondant Node

Home Agent

Foreign Agent AForeign Agent B

Mobile Node

802.11b

PPP over GSM

802.11b

Correspondant Node

GatewayForeign Agent

Home Agent

Foreign Agent A

Mobile Node

Foreign Agent B

802.11b

GPRS802.11b

Ad-hoc Domain

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IPv4 Test-beds Specifications• Hardware

Stationary test-bed– Siemens APs &

Cisco & Elsa - PCMCIA cards– Agents are Athlon 800MHz– Mobile Node is Samsung Laptop

Mobile test-bed– Cisco APs & PCMCIA cards– Notebooks of Mobile AMD

Duron(1.1GHz & 256 MB RAM)

Ad-hoc test-bed– Notebooks of Mobile AMD

Duron(1.1GHz & 256 MB RAM)

• Software– Linux Kernel 2.4.18 – IPv4 & IPv6– SunLabs Mobile IPv4

• Extended to supportECS & FHCS

– MIPL, Mobile IPv6– tcpdump and ethereal

network monitor– kernel module to support

AODV 1.5 developed by NIST

– Applications (RAT, Gnome Meeting, VIC)

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IPv6 Test-bed in Basel• Main features:

– Mobility by Wireless LAN (WLAN) and GPRS connectivity

– Basel site is connected to the Pan-European GEANT network, which has links to multiple potential collaborative partners

– IPv4/IPv6 migration strategies– Routing (Mobile IP)– Quality-of-Service (QoS) by DiffServ and Flow-Label– IP Security Implementation

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IPv6 Test-bed Overview

Bern Bangalore

Paris

London

Rome

Sophia

Etho Etho Eth1

Eth2

Eth0 Eth1

Eth1 Eth0

Eth0 Eth1

Eth0

Eth0

Sophia

Uplink

192.168.19.0 / 2001:618:2::/64

192.168.20.0 / 2001:618:3::/64

192.168.21.0 / 2001:618:4::/64

192.168.22.0 / 2001:618:5::/64

192.168.23.0 / 2001:618:6::/64

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IPv6 Test-bed implementations (1)Eth1

Eth0

Eth0 Eth1

Eth0

Eth0

Sophia

Rome

Eth0 Eth1

Eth0

Paris

London

Sophia

MN

HA

FN

CN

MN

Redhat Linux 7.2, Kernel 2.4.18

MIPL 0.9.3, radvd 0.7

MN � Mobile Node

HA � Home Agent

FN � Foreign Network

CN � Corresponding Node

IPv6 Implementation

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IPv6 Test-bed Implementations (2)

Bern Bangalore

London

Etho Etho

Eth2

Eth1

Destination Gateway

Road Warrior

Redhat Linux 7.2, Kernel 2.4.7

Freeswan 1.9.1

VoIP6, RAT

DiffServ Implementation

Security Implementation

Bern Bangalore

Etho Etho

Eth0

Eth1

Source

Destination

DiffServ

Redhat Linux 7.2, Kernel 2.4.18

Iproute2-ipv6

Voice Over IPv6

Paris

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IPv6 Test-bed Specification• Hardware

- Pentium IV 1.6 GHz (3 Nos), Dell Machines (2 HA, 1 MN)

- 256 MB RAM, Intel built in Soundcard,

- Mic and Speaker

- Pentium III 450 MHz (2 Nos) (1 HA, 1 CN)

- 128 MB RAM (2 Nos), Creative Soundcards Mic and Speaker

• Software- Mobile IPv6 software:

mipv6-0.9-v2.4.7- Kernel: 2.4.7- Routing Daemon: radvd-

0.7.1- Robust Audio Tool (RAT)- Voice Over IPv6 (VoIP6)- Video LAN- Video Conference Tool

(VIC)- Apache Web Server- telnet- ftp

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Next steps/issues

• Mobile IPv4 and Mobile IPv6• Mitigation strategies between IPv4 and IPv6• Service discovery and seamless services• Hand-over and roaming behaviour • Working of different bearer technologies• Implementation and testing of existing QoS mechanisms• User and service profiling• Service definition, creation, deployment, announcement,

and discovery• Service management