B.2.a) Networks pools definition and aggregation implication
1. We are using the two following IP blocks 10.10.192.0/20 and 18.104.22.168/19, which are divided into the next network or zone pools defined by class-C or /24 prefixes.
2. About the aggregation process, it is important to advertise the aggregated blocks to all Ebgp neighbors. The mains reasons are to provide redundancy and traffic continuity for customers, but also to avoid useless Internet load and provoking flap issues. This will be explained in details in paragraph B.4.
3. The following configuration is straightforward and has been described in the templates. Even so, for your personal information or as a reminder, you are welcome to give a look to it, if you wish to have further details.