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Autor(es) Olivier Bonaventure
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iBGP

These questions assume that you have read the iBGP section of the first edition of the Computer Networking: Principles, Protocols and Practice ebook.


Pregunta 1: BGP Decision process

What is the first rule of the BGP decision process ?

Pregunta 2: Hot potato routing

In the list below, which rules of the BGP Decision process corresponds to hot potato routing ?

Pregunta 3: BGP Decision process

The BGP Decision Process starts with the following rules

1. Ignore routes having an unreachable BGP nexthop
2. Prefer routes having the highest local-pref
3. Prefer routes having the shortest AS-Path

What are the next rules of the BGP decision process ?

Pregunta 4: Cold potato routing

Cold potato routing relies on the utilisation of a specific BGP attribute. Which one ?

Pregunta 5: Number of iBGP sessions

Consider a transit network that is composed of k different transit routers. What many iBGP sessions do you need to create inside this network ?