The document discusses the limitations of the current TCP/IP network architecture and proposes Recursive Internet Architecture (RINA) as a better alternative. RINA is based on the principle that networking is inter-process communication (IPC) that is recursed over different scopes. It was first presented in 2008 as a new architecture that supports capabilities like mobility, middleboxes, and layer violations without specific mechanisms. RINA structures the network in a way that aims to enhance its structure and economic efficiency compared to the TCP/IP model.

1. Is Internet getting old !!
❏ What (computer) network
architecture is
❏ What is the current one
❏ What are its main flaws
❏ How to construct a better
architecture

2. ❏ 1972: Multihoming not supported by the ARPANET
Computer networking is Inter Process Communication (IPC)
– Robert Metcalfe, inventor of Ethernet, 1972

3. ❏ 1978 TCP split from IP
★ The ARPANET switched to TCP/IP in 1983.
★ TCP/IP was developed in the 1970s and adopted as the protocol
standard for ARPANET (the predecessor to the Internet) in 1983.

4. ❏ what are the “endpoints” of communication” today ??
★ Application
★ Network are just large data copying machines

5. ❏ Overview of TCP/IP

6. ➔ Complexity makes all other
network problems worst
(security, management, etc),
makes networks hard (and
expensive!) to manage and
less reliable.

7. ❏ Current network architecture has a flawed ...

8. ❏ Fixed number of layers , sometimes more needed between transport
and application
- Need concepts like “Overlay”, “VPN”, “Virtual Networks”, ..
❏ Each layer providing a different function to each others .
❏ Internet architecture does not have root for different network protocols
( There is a common internet layer directly over data link layers )
❏ Multiple protocol within the same layer
❏ Layers & problems !!

9. ❏ Issues: mobility (II)

11. ❏ HOW TO CONSTRUCT A BETTER
NETWORK ARCHITECTURE

12. ❏ Let’s go to fixed ( what is new ?? )
❖ Meet RINA !
● The principles behind RINA were first
presented by John Day in his 2008 book
Patterns in Network Architecture

13. RINA is a new network architecture that is based on the fundamental principle that networking is
inter-process communication (IPC). It recurses the IPC service over different scopes.

14. ❏ Basic concept of RINA

15. ❏ Overview
Recursive Internet Architecture (RINA):
RINA is a new network architecture that is based on the
fundamental principle that networking is inter-process
communication (IPC). It recurses the IPC service over different
scopes.
From the publishing of the PNA book in 2008 to 2014, a lot of RINA
research and development work has been done.

16. Summing up.. RINA is not a protocol!

17. ❏ One isp scenarios

18. ❏ Let’s go to our to-do list

19. ★ As a consequence of its structure, many capabilities supported
by RINA are accommodated without specific mechanisms. As
one would expect in a complete architecture, so-called
middleboxes are unnecessary, and so-called ``layer violations"
do not exist.
★ Network Structure Enhancements
★ Economic Efficiency
❏ Benefits of RINA ??

20. Reference:
http://csr.bu.edu/rina/documents2.html
https://www.icin-conference.org/rina-2020/
https://en.wikipedia.org/wiki/Recursive_Internetwork_Architecture