Subscriber devices 18A may include, for example, personal computers, laptop computers and/or other types of computing device associated with subscribers. Subscriber devices 18B may comprise, for example, mobile telephones, laptop or desktop computers having, e.g., a 3G wireless card, wireless-capable netbooks, video game devices, pagers, smart phones, personal data assistants (PDAs) or the like. Subscriber devices 18C may include, for example, a workstation, desktop computer, server computer, server farm, server cluster, or any other device or group of devices that are capable of accessing a computer network via a wireless and/or wired connection. Each of subscriber devices 18 may be associated with a subscriber (e.g., a human, an enterprise, etc.). Applications that access services provided by service provider network 20 may alternatively be referred to as “user agents.” In this example, any of subscriber devices 18 may connect to at least one of edge routers 30-32 in order to access service provider network 20.