1. VIVA PRESENTED BY : AUGUSTA ONOCHIE (149039831)
PROGRAMME: MSC TELECOMMUNICATION ENGINEERING
TITLE: A COLLATION OF ROUTING TECHNOLOGIES THAT INVESTIGATES
FLEXIBILITY, STABILITY AND SECURITY OF AN ISP.
CLIENT: DAVID EVANS (UNIVERSITY OF SUNDERLAND)
DATE: 22ND JANUARY, 2016

2. EXECUTIVE SUMMARY
 Not Flexible to the routing demands.
 Immediate and Expansion plans will Incurring more
cost as customers must ensure that the Customer
Edge Routers (CE) meet the BGP requirement of the
ISP as well as their internal routing protocols (OSPF)
& (EIGRP).
 Difficult to Maintain (2) Different Routing Protocols
 Simplicity in
configuration
 Prevents of routing
information loop
 Offers reliable
updates using
Transmission
Control Protocol
(TCP).

3. PROBLEM STATEMENT
An ISP enterprise is faced with the challenge of satisfying the customers demand by
providing a flexible mechanism where the customer can interconnect with their
other site branches, using their choice of routing protocol mechanism through the
ISP network. The ISP enterprise also demands that the solution that will be
deployed should possess scalability, security and stability to protect the image and
integrity of the company.

4. CLIENT REQUIREMENTS
 Design a reliable, flexible and stable ISP network
 Demonstrate how recent routing technologies can be deployed by ISPs
to ascertain customer’s routing flexibility.
 Present a practical solution which ensures that the above network
design is stable and scalable.
 Offer a solution that demonstrates how recent security techniques are
deployed in the ISP network design.
 Recommendations that provides support on how the practical
deliverables can be deployed.

5. PROJECT OBJECTIVES
1. Present a critical research analysis, by utilizing recent and reputable journals that
covers the design and implementation of a flexible, stable and secured ISP
network.
2. Produce a design for a flexible, stable and secured ISP network.
3. To produce a practical lab prototype solution that satisfies the client requirements
4. Demonstrate how the ISP inter-domain routing protocols alongside some
deployed IGPSs are engineered to publish customer’s VPN routers that channel
packets.
5. Offer a written (report) that elaborates how the practical solution (ISP network
prototype) can be flexible to customer routing demands in a scalable and stable
and secured manner.

6. RELEVANCE OF THE RESEARCH CARRIED OUT
Recent academic papers has been critically analyzed within the literature review
which has provided Advanced knowledge regarding the following:-
 The components that make up an ISP network [Layout of the Interior Gateway
Protocol (IGP), Network Layout, Methodology of Network Addressing, Customer
Connectivity as well as Peering and Transit Connections]
 Current ISP routing technologies used [ MPLS-VPN, L3VPN (VPNv4), BGP and
IGPs]
 Recent ISP stability techniques [Link Redundancy, Route Reflectors, Hub and
Spoke]
 Security techniques deployed within an ISP network [MPLS & IPSec]
These knowledge has been used as the major tool to designed and implement

7. PROJECT METHODOLOGY

8. ARCHITECTURE OF THE ISP PROTOTYPE NETWORK

9. NETWORK DIAGRAM OF THE ISP
PROTOTYPE

10. ISP PROTOTYPE IMPLEMENTATION
 New Cisco software application called Virtual Internet Routing Lab (VIRL)
 Necessary configurations has been deployed on all the routers
 Evidence that shows the functionality of the ISP prototype are seen in the numerous snapshots
provided within the appendices of the dissertation.
 WireShark Application has also been used with VIRL to capture Traffics across the ISP network.

11. PERFORMANCE TEST RESULTS FOR THE ISP PROTOTYPE
Flexibility of Routing Technologies on CUST-1 has been
Successful

12. Flexibility of Routing Technologies on CUST-2 has been
Successful
PERFORMANCE TEST RESULTS FOR THE ISP PROTOTYPE

13. Flexibility of Routing Technologies on CUST-3 has been
Successful
PERFORMANCE TEST RESULTS FOR THE ISP PROTOTYPE

14. Security Using MPLS and IPSec has been Successful
IPsec Extra Security
Multi-protocol Label
Switching (MPLS) Security
PERFORMANCE TEST RESULTS FOR THE ISP PROTOTYPE

15. RECOMMENDATIONS
 The PEs within the ISP will have to be a multivendor equipment to support
all the possible customer routing demands. (This will incur a lot of cost).
 Networking experts in different routing technologies will be required
within the ISP enterprise, to troubleshoot and maintain different routing
technologies. This also incurs cost.
 RIP should not be used as a choice of CE-PE inter-domain routing
protocol as it has a limitation of (15-hops).
 The ISP administrative should be remotely in charge of configuration and
maintenance of the CE routers, to enable smooth Network

16. PROJECT EVALUATION
 All Project Objectives and Client Requirements were achieved.
 A Proposed MPLS-VPN /MP-IBGP/ L3VPN/IPSEC approach has shown to be
effective but reveals the complexity of using different routing protocols (IGPS)
between (CE-PE).
 A Set Of Recommendations Identifying Best Practices In deploying this
solution has been provided.
 A Report and Copy of the ISP Prototype Solution has been Delivered To Client.

17. CONTRIBUTION OF THIS PROJECT
 This research fills the knowledge gap of the network routing operations
within an ISP, by providing advance knowledge on ISP routing mechanisms,
stability and security techniques.
 Offers the Client with a useful solution that provides flexibility to the routing
demands of customers, in a stable and secured manner.
 Offer ISP enterprises the tool to be as step ahead of counter-competitors,
keeping old and new customers happy.
 Boost the financial profitability of ISP enterprises.
 ISP Customers would not need to invest in expensive networking equipment
 Offer ideas to networking researchers

18. CLIENT FEEDBACK
The student has produced a very
useful simulation that I will use to
investigate IGP interactions with
L3VPNs.
Good Work! Could have Examined
some of the technical issues of (PE-
CP) IGP interactions in more depth.

19. CONCLUSION
This Research Offers a standard literature and practical
prototype that addresses the ISP problem of connecting
the dispersed branch sites of customers, by using their
preferred routing protocols (IGPs); instead of the usual
(BGP) on the (CE-PE) link, in a secured and stable manner.
Using this solution, ISPs can afford to put Simultaneously
the
“People and Profit” successfully.

20. THANK YOU!