3.7.h Implement and troubleshoot other features

 3.7.h [ii] BGP synchronization


Synchronization in BGP is a tough concept at first. That’s why they love to teach it even though it’s off by default.

The rule of Synchronization:

The BGP synchronization rule states that if an AS provides transit service to another AS, BGP should not advertise a route until all of the routers within the AS have learned about the route via an IGP.

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