BGP - MESSAGES

In this session we explore the different messages used by BGP to establish sessions, warn of possible errors, exchange information and keep up sessions. These messages are: OPEN, NOTICE, UPDATE and KEEPALIVE.

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Video Description

Open: Using TCP, this message is sent to request the establishment of a BGP session. 

Keep Alive: It's a packet used to keep the session up/confirm messages.

Notifications: Used to notify about error conditions:
Message Headers Errors
Open Message Errors
Update Message Errors
Hold Timer Expired
Finite State Error
Cease

Updates: They update about new prefixes that must be installed (announce) or prefixes that must be removed (withdrawn).

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