Overview
BisonRouter is a software Broadband Network Gateway built specifically for broadband subscriber session termination. BNG is one of the core specialties of the platform, with production-proven support for PPPoE, IPoE, and L2TP access models used by Internet Service Providers.
The platform terminates subscriber sessions, connects subscribers to the operator network, and applies per-subscriber policies such as authentication, IP addressing, accounting, routing, and speed limits. Operators can use one BNG platform across Ethernet, VLAN, QinQ, fiber, wireless, and wholesale access designs.
PPPoE Subscriber Termination
PPPoE is widely used by ISPs because it gives clear subscriber sessions, simple customer identification, and strong integration with RADIUS. Bison Router terminates PPPoE subscriber sessions directly on the BNG and can apply the subscriber profile received from RADIUS.
The PPPoE implementation is RFC-compatible and supports both IPv4 and IPv6 service. It supports the normal PPP control protocols used by broadband networks, including LCP, IPCP, IPv6CP, PAP, and CHAP.
Bison Router is used by several hundred ISPs worldwide, from very small providers to large operators with hundreds of thousands of subscribers. In large PPPoE networks, operators can place up to about 60 thousand subscribers on one hardware box, depending on the server configuration and traffic profile.
IPoE Subscriber Termination
IPoE is useful when an operator wants subscriber access without PPP. Bison Router has a flexible IPoE implementation, so the same BNG can support different access-network designs.
IPoE can be used with DHCP-based subscriber activation, VLAN per subscriber, shared VLANs, and other Ethernet access models. This is useful for networks where subscribers are identified by access line, VLAN tags, DHCP information, or a combination of these values.
This flexibility helps operators migrate from older access models to newer Ethernet and fiber designs without changing the whole subscriber edge at once.
L2TP Subscriber Access
Bison Router also supports L2TP for broadband access networks. It can work as a LAC, where PPPoE sessions are forwarded through L2TP tunnels to a remote LNS. It can also work as a LNS, where L2TP sessions from remote LAC devices are terminated on Bison Router.
L2TP is useful for wholesale access, centralized PPP termination, and migration projects where the access network and the subscriber service edge are not in the same place.