BGP VPN Label Aggregation

Aggregate labels for VPNs allow a Juniper Networks routing device to aggregate a set of incoming labels (labels received from a BGP peer router) into a single forwarding label, which is selected from the set of incoming labels. The single forwarding label corresponds to a single next hop for that set of labels. Label aggregation reduces the number of VPN labels that the router must examine. For a set of labels to share an aggregate forwarding label, they must belong to the same forwarding equivalence class (FEC). The labeled packets must have the same destination egress interface.