redundancy (M:N Subscriber Redundancy)

Identify the interface name for the logical access interface for the subscriber redundancy group covered by M:N redundancy.

Configuring the interfaces inside the group is for logical grouping only. You can group all the interfaces to one interface-group or you can have single interface-group for each redundancy interfaces.

(Pseudowires only) Local IP address for the associated pseudowire interface. This address must match one of the access-facing GE interface addresses. It is unique per redundancy group identified by the psx.0 interface. The DHCP relay agent uses this address as the giaddr for DHCP messages sent to a DHCP server. For dynamic subscriber Interfaces, this address is the same as the preferred-source address (the unnumbered address derived from the access-facing GE interface).

(Pseudowires only) Local IPv6 address for the associated pseudowire interface. This address must match one of the access-facing GE interface addresses. It is unique per redundancy group identified by the psx.0 interface. The DHCP relay agent uses this address as the linkaddr for DHCP messages sent to a DHCP server. For dynamic subscriber Interfaces, this address is the same as the preferred-source address (the unnumbered address derived from the access-facing GE interface).

(Optional) Suppress advertisement of subscriber access routes or framed routes at the backup BNG towards the core or install the routes in the forwarding table. The routes are added to the routing table when the primary BNG fails over to the backup BNG. This option applies to all subscribers that are covered by redundancy on the chassis and that log in after you configure the option. Existing subscribers are not affected.

• Default: Advertise the access and framed routes to the backup BNG during subscriber login.

Specify a method for BNG M:N redundancy. You can configure both VRRP and pseudowires when the underlying access interfaces do not overlap between these methods.

• pseudo-wire—Use pseudowires for redundancy on pseudowire interfaces for L2VPN and Layer 2 circuit-based networks over IP/MPLS.

• vrrp—Use VRRP for redundancy on GE and XE interfaces.

• Default: vrrp

(Pseudowires only) Shared key that is used by the topology discovery process to identify a backup pseudowire interface on a peer BNG for a subscriber redundancy group. You configure the same shared-key on the local access interfaces on the primary and backup BNGs for a particular redundancy group. A topology discovery match is achieved when both the query and response messages include the pseudowire local access interface name, the same shared key, and the same transaction ID. You define the shared key as a string of up to 64 characters that you choose. You must not use the shared key for any other peer BNGs.

(VRRP) IPv4 address for the virtual router. This address is used as the gateway address for all redundancy peers associated with a particular subscriber redundancy group. You must specify the same virtual IP address that you also configure on VRRP so that it can create the virtual router for redundancy.

(VRRP) IPv6 address for the virtual router. This address is used as the gateway address for all redundancy peers associated with a particular subscriber redundancy group. You must specify the same virtual IP address that you also configure on VRRP so that it can create the virtual router for redundancy.