Service provider network 20 supports one or more packet-based services that are available for request and use by subscriber devices 18. As examples, service provider network 20 may provide Internet access, bulk data delivery, voice over Internet protocol (VoIP), Internet protocol television (IPTV), short messaging service (SMS), wireless application protocol (WAP) service, telnet, or customer-specific application services. Service provider network 20 may include, for instance, a local area network (LAN), a wide area network (WAN), a virtual LAN (VLAN), an enterprise LAN, a layer 3 virtual private network (VPN), an Internet protocol (IP) intranet operated by a network service provider that also operates access aggregation network 24, an enterprise IP network, or some combination thereof. In various examples, service provider network 20 may be connected to or form part of one or more of a public WAN, the Internet, or to other networks. Service provider network 20 executes one or more packet data protocols (PDPs), such as IP (IPv4 and/or IPv6), X.25 or point-to-point protocol (PPP), to enable packet-based transport of service provider network 20 services.