As vCloud Director allows (service provider permitting) customers to create new networks within their tenant Org VDCs, or set up WAN and internet external facing services, there is a requirement to make the addresses in question reachable from external networks. Although it is possible to manage this using static routing, configured on the routing devices within the solution, dynamic routing protocols provide a mechanism to automate the distribution or routing information without the need for manual intervention or complex, bespoke orchestration of routing configuration.

Tenant traffic routing within a service provider environment generally falls into two categories, public internet, and private, per-tenant. Each of these is examined in more detail in the following sections.