1. BGP Issues BGP is a reachability protocol ISP issues
Some policy supported, but controls are very course.
ISP issues
Aggregation
Aggregation is good for BGP table size in the core, however aggregation hides much topology information
Peering
More customers = More traffic = More Peers = Shorter AS path

2. Infrastructure and Aggregation
Distinct RTT banding indicates two distinct locations…could there be a better path?

3. Infrastructure Stability
Plots represent minimum RTT values over time.
Step functions indicate changes to infrastructure…sometimes logical…sometimes physical…

4. No Single Provider Can Deliver Consistent Performance
Best Providers
Worst Providers

5. Path Diversity Helps
Enterprises can leverage path diversity by multihoming with Route Control.

6. Multihoming Statistics