BNG subscriber redundancy on aggregated Ethernet interfaces with disabled Packet Forwarding Engines

You can enhance network reliability for broadband network gateway (BNG) subscribers by maintaining active sessions over aggregated Ethernet interfaces, ensuring service continuity even if a Packet Forwarding Engine fails. This feature supports DHCP, PPPoE, and L2TP and remains operational as long as one member link is active. It is compatible with the following configurations:

• Active/active mode
• Active/standby mode
• Dynamic VLAN
• Static VLAN

This redundancy improves user experience by minimizing service disruptions and ensuring uninterrupted connectivity. Disabling a Packet Forwarding Engine on a Flexible PIC Concentrator (FPC) does not affect other Packet Forwarding Engines on that FPC or other FPCs. If you disable a Packet Forwarding Engine with an aggregated Ethernet member link, link aggregation group (LAG) or the aggregated Ethernet infrastructure redistributes the traffic on other member links.