Transcript INTUIT Project Preparation Meeting, Febryary, 24 th 2003 Outline

NTUA in INTUIT : Areas of Interest,
Role and Potential Contribution
J.Soldatos
National Technical University of Athens
Contact e-mail: [email protected]
INTUIT Project Preparation Meeting, Febryary, 24th 2003
Outline
• NTUA Research Interst in INTUIT :
– Multihoming Solution
– DNS discovery
– Migration Secnarios
• NTUA Expertise:
– Embedded systems software programming (including
RGs)
– Internet architecture specification / Network Modeling
– Wireless LAN (IEEE802.11), Bluetooth, HiperLan2
INTUIT Project Preparation Meeting, Febryary, 24th 2003
Multihoming (1) – Architecture &
Specification
• Leverage / Extend IETF work (Host & Site
Multihoming):
– Site exit issues - Source Address dependent routing
– Mobile IPv6 based solutions  aggregate & per flow
interface selection
– Multihoming with Route Aggregation (Multiple ISPs) /
RFC2260
– Combination of route renumbering with mobility
mechanisms (e.g., for preserving connections on failures)
– Scalabiliy concerns (minimum DFZ entries/advertisements)
– Specify necessary agreements, SLAs between SPs for site MH
INTUIT Project Preparation Meeting, Febryary, 24th 2003
Multihoming (2) - Demonstration
• Scenarios:
–
–
–
–
Fault Resilience – Redundant Connections
Load Balancing – Traffic Enginering
Service Value – Tarifing
Terminal configuration – source address selection 
Terminal Agent / Proxy (e.g., in PCs but also in wireless
terminals using the NOKIA J2ME toolkit)
INTUIT Project Preparation Meeting, Febryary, 24th 2003
DNS Discovery & Configuration
• Solutions (simple to more sophisticated):
– Well known unicast address (may be useful for a 1st
phase demonstrator)
– DNS server in RGs  quite costly option
– More sophisticated Discovery : DHCP6
– Private vs. Public Domain name
– Global DNS service provision  Implications at the
ISP side
– Directory issues use of FQDN  host
communication & mobility
INTUIT Project Preparation Meeting, Febryary, 24th 2003
Home Networking Migration Scenarios
• Study IPv4/IPv6 migration home networking:
– NAT, IPv4 tunnel to IPv6 Server  IPv6 connectivity over IPv4
– Study of DNS support (Gateway side, provider side)
Hub
WorkStation
(Dual Stack)
Laptop (Dual
Stack)
Residential
Gateway
(Programmable
/ Linux box)
IPv6 Server
Relay Router
IPv4 SP
INTUIT Project Preparation Meeting, Febryary, 24th 2003
IPv6 Network
Relevant NTUA expertise
• Embedded systems software:
– Fault tolerant, QoS
– Interworking Gateway (NETGATE)
– Programming the RG (InAccessNetworks.com)
• IP architecture / specification:
– TEQUILA, AQUILLA
– IPv6  ANDROID
• Wireless Standards:
– HIPERLAN2, UMTS, DVB-T (MONASIDRE)
– UMTS, HIPERLAN2 (FITNESS)
INTUIT Project Preparation Meeting, Febryary, 24th 2003
NTUA’s Role Summary
• Areas of Interest (Multihoming, DNS discovery,
Interworking & Migration Ipv4/IPv6)
• Application Developer - Software
– Depending on the specific areas that industrial
partners require assistance
• Architecture & Specification work
• NTUA volunteers to contribute to the technical
& non-technical writing of the proposal
INTUIT Project Preparation Meeting, Febryary, 24th 2003