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- Exterior IP routing
  
  The Border Gateway Protocol (BGP) is the routing protocol that holds the Internet together - and this advanced course provides engineers with a comprehensive understanding of how BGP operates between autonomous systems, and how it is configured and secured in practice.
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- Online access for 12 months: £120
  
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Level

Advanced

Modules

Delivery

Online, self-paced

Code

TQJ

What you will learn:

You'll learn how BGP establishes peering relationships, the factors taken into account in choosing a route, the role of route summarisation in improving the efficiency of routing, and how BGP is used by ISPs and large enterprises to control traffic flows across multiple upstream providers. The course also covers the various methods of improving the security of the global routing system.

By the end of this course you will be able to:

explain the concept, role, and use of subnet masking.
describe the role, advantages, and principles of variable length subnet masking (VLSM).
describe the principles and advantages of route summarisation.
describe the principles and benefits of the use of Classless Inter-Domain Routing (CIDR).
describe and compare protocols that advertise routing information between autonomous systems.
describe the traffic management facilities of the routing protocol BGP with reference to load balancing and peering.
explain the relationship between interior and exterior routing protocols with reference to redistribution and filtering.
explain methods of protecting routing announcements from malicious or fraudulent misuse with reference to MD5 authentication, IPsec and BGPsec.
explain the role and operation of the Resource Public Key Infrastructure (RPKI).
describe the role of Internet routing registries, the RPKI, and the MANRS initiative in strengthening the security of the global routing system.

Course prerequisites:

You will get the most out of this course if you already understand the principles of operation of networks based on the Internet suite of protocols including route discovery.

It is recommended that the PTT e-learning courses "IP networks" and "Interior IP routing" are studied before attempting this "Exterior IP routing" course.

Approximate study time: 5 hours

Delivery platform requirements:
To access the course, a computer/tablet running a browser such as Chrome, Safari, Edge etc. is required. The device should have an active Internet connection and a screen resolution of at least 1024x768.