Consider the pictured network implementing BGP.

*link for BGP topology https://ibb.co/kAP4Na

- Nodes evaluate path choices based on AS path lengths (the shorter the better).

- If multiple providers give equally good paths to send outbound traffic, a customer will pick the provider with the highest AS number (can be achieved by using weight/local preference).

- A service provider will not export routes learned from a peer to another peer.

Network operators typically like to equalize the amount of traffic coming from multiple providers. Suppose AS 6 owns prefix 123.45.0.0/16, and all IP addresses in this prefix receive approximately the same amount of traffic.

3. AS 6 constructs an announcement of its prefix 123.45.0.0/16 and sends the same announcement to both AS 3 and AS 4. What will happen to the traffic? Is AS 6 guaranteed to get the same amount of traffic from both providers?

4. Now AS 6 sends different announcements: prefix 123.45.0.0/17 to AS 3 and prefix 123.45.128.0/17 to AS 4. Does this equalize the amount of traffic? What problems do you see in terms of scalability and reliability?