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Broadband Network Gateway (BNG) Subscriber Redundancy on Aggregated Ethernet (AE) Interfaces with Disabled PFEs (MX304, MX960, and MX10004)

The BNG subscriber redundancy feature on Aggregated Ethernet (AE) interfaces enhances network reliability by ensuring uninterrupted subscriber sessions during Packet Forwarding Engine (PFE) disable.

Broadband Network Gateway subscriber resiliency on aggregated Ethernet interfaces with disabled PFEs (MX304, MX960, MX10004)—You can enhance network reliability for Broadband Network Gateway (BNG) subscribers by maintaining operational status over aggregated Ethernet (AE) interfaces and ensuring uninterrupted subscriber sessions even when a Packet Forwarding Engine (PFE) is disabled. This feature ensures uninterrupted subscriber sessions using Dynamic Host Configuration Protocol (DHCP), Point-to-Point Protocol over Ethernet (PPPoE), or Layer 2 Tunneling Protocol (L2TP) as long as one member link remains active. It supports both Active/Active and Active/Standby modes and is compatible with dynamic and static VLAN configurations.

The BNG subscriber redundancy feature on AE interfaces enhances network reliability by ensuring uninterrupted subscriber sessions even when a PFE is disabled. This feature maintains active sessions using DHCP, Point-to-Point Protocol over Ethernet (PPPoE), or Layer 2 Tunneling Protocol (L2TP) as long as at least one member link in the AE interface remains active. It supports both Active/Active and Active/Standby modes and is compatible with dynamic and static VLAN configurations. PPPoE sessions and inline Bidirectional Forwarding Detection (BFD) for DHCP also ensure session integrity.

Benefits of BNG Subscriber Resilience on Aggregated Ethernet Interfaces with Disabled PFEs

  • Enhanced Network Reliability: Ensures that BNG subscriber sessions remain active and traffic is forwarded uninterrupted, even if a PFE encounters a hardware failure.

  • Service Continuity: Maintains subscriber connectivity by keeping sessions operational as long as at least one member link in the AE interface is on an active PFE.

  • Minimized Service Disruptions: Allows for efficient traffic management by preventing complete service outages, thus enhancing user experience and reducing downtime.

  • Compatibility with Various Configurations: Supports both Active/Active and Active/Standby modes for AE interfaces, and works with dynamic VLAN, static VLAN, and static demultiplexing VLAN configurations, offering flexibility in network design.