Consider, for example, the EuroBank VPN network introduced in the previous chapters, which contains four sites (San Francisco, Washington, London, and Paris). Each site has a single CE router that participates in a simple VPN. Three of these sites are connected to the PE routers in San Jose, Washington, and Paris, and the London site is connected to the Paris site.
If you are not yet familiar with the SuperCom/EuroBank case study, you can find the detailed setup used in this case study in Chapters 2, “Remote Access to an MPLS VPN,” and 3, “PE-CE Routing Protocol Enhancements and Advanced Features.”
Now imagine that the EuroBank would like to introduce a level of separation between different departments ...