1. Guide: Dr. Vishal Sharma Group 8: Pujara Chirag (03307901)
Course Project
EE 612 Telematics Course Project on Inter-Provider Peering in IP Networks
Guide: Dr. Vishal Sharma
Group 8: Pujara Chirag ( )
Mehta Prakshep ( )
Bhedaru Velabhai ( )

2. Need for Interconnection
Course Project
Need for Interconnection
To Provide Universal Connectivity
To Increase the no. of Customers
Network Externalities
Direct
Indirect
11/8/2018
Course project EE-612 Telematics, IIT Bombay

3. Interconnection Strategies
Peering
It is a settlement free connection between backbone providers
Private Peering
Advanced Peering
11/8/2018
Course project EE-612 Telematics, IIT Bombay

4. Cont.. Hot Potato Routing
Traffic is delivered at the earliest exchange point.
11/8/2018
Course project EE-612 Telematics, IIT Bombay

5. Course project EE-612 Telematics, IIT Bombay
Cont..
Transit
It is a paid connection.
Quality of connection
is good.
11/8/2018
Course project EE-612 Telematics, IIT Bombay

6. Interconnection issues
Non Technical
Common carrier regulation
Is it needed?
Maintaining competitive environment
Is refusal for peer is anti-competitive act?
11/8/2018
Course project EE-612 Telematics, IIT Bombay

7. Free Riding on a National Backbone
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Course project EE-612 Telematics, IIT Bombay

8. Course project EE-612 Telematics, IIT Bombay
Technical issues
Fault Detection
Link Failure
Looping in routing
Accommodate different class of users
To provide QoS guarantee.
11/8/2018
Course project EE-612 Telematics, IIT Bombay

9. Border Gateway Protocol
Interconnection of ISP
Policy based Algorithm
EBGP & IBGP
Multiprotocol BGP
TCP/IP
11/8/2018
Course project EE-612 Telematics, IIT Bombay

10. Course project EE-612 Telematics, IIT Bombay
Weight
How do I reach ?
What policy ?
M = (1 / min (BWi)) + ∑di
11/8/2018
Course project EE-612 Telematics, IIT Bombay

11. Course project EE-612 Telematics, IIT Bombay
Local Preference
AS 1
AS 2
AS 4
AS 3
/16
local pref = 80
local pref = 100
local pref = 90
AS 5 A B C
11/8/2018
Course project EE-612 Telematics, IIT Bombay

12. How do I force traffic on primary link?
AS 1
Primary link
Backup link
Set Local Pref = 100
for all routes from AS 1
AS 2
Set Local Pref = 50
11/8/2018
Course project EE-612 Telematics, IIT Bombay

13. Multi Exit Discriminator15 56 17
100
Heavy Content Web Farm
/24
MED = 15
MED = 56
Prefer lower
MED values D C
AS 1
AS 2
AS 3
11/8/2018
Course project EE-612 Telematics, IIT Bombay

14. Course project EE-612 Telematics, IIT Bombay
AS_PATH
AS2
/16
AS Path =1
AS 3
AS 4
AS 5
AS Path = 2 1
AS Path = 5 2 1
AS 1
Prefix Originated
AS 6
AS 7
AS Path =2 1
AS Path = 3 2 1
AS Path =
AS Path =
AS 6 May choose AS 5 2 1
11/8/2018
Course project EE-612 Telematics, IIT Bombay

15. Course project EE-612 Telematics, IIT Bombay
NEXT HOP
AS 1
AS 2
/16
Next Hop = C B D A
/30
11/8/2018
Course project EE-612 Telematics, IIT Bombay

16. Course project EE-612 Telematics, IIT Bombay
Limitation
Cannot differentiate between class of service
Requires Mesh topology within AS
Requires large size table
Convergence
11/8/2018
Course project EE-612 Telematics, IIT Bombay

17. Basics of MPLS based VPNs
11/8/2018
Course project EE-612 Telematics, IIT Bombay

18. Advantages of MPLS in VPNs
Ease of Routing (in the core network)
Implementation of Policy based Forwarding
Support Different Class of Service (CoS)
Can Fulfill Customer’s Varying Expectation
11/8/2018
Course project EE-612 Telematics, IIT Bombay

19. Concept of MPLS based Peering
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Course project EE-612 Telematics, IIT Bombay

20. Complexities Involved…
In Competitive market ISPs may not collaborate for Exchange of MPLS parameters
Before providing service to any Customer an ISP has to check whether that class of service is provided by other ISP to which it is peering
11/8/2018
Course project EE-612 Telematics, IIT Bombay

21. Course project EE-612 Telematics, IIT Bombay
Benefits
Allows Multiple Autonomous systems to form a continuous and seamless Network between customer sites of a Service Provider
Traffic Flow through one Cross point allows for better rate control of network traffic between different areas
Can divide a large System into multiple subsystems and then Classify them into a Single Confederation
11/8/2018
Course project EE-612 Telematics, IIT Bombay

22. Queries
Thank you