Subscriber host
A representation of an external host requesting a service. Each such host is fully instantiated within the 7450 ESS and 7750 SR for the purpose of providing traffic control and billing services (for example, QoS, filtering, antispoofing, accounting). The external hosts may represent variety of devices such as regular PCs, STBs, residential gateways, CPEs, VoIP devices. In most cases, the external host runs a DHCPv4/v6 or PPPoEv4/v6 client. DHCP and PPPoE initiation messages from such clients triggers host instantiation within the router. For this the subscriber host term can be interchangeably used with a term DHCP client or PPPoE client.