Subscriber Services: Detect & autogenerate logical interface sets representing logical access nodes

Configure the router with the hierarchical-access-network-detection option of the access-line statement to parse the ANCP Access-Aggregation-Circuit-ID-ASCII attribute (TLV 0x0003). When the TLV string begins with a # character, the entire string is a backhaul line identifier. The portion of the string after the # delimiter represents a logical intermediate node (DPU-C or PON tree) in the access network to which the subscriber is attached. This portion is used to set the value of the $junos-aggregation-interface-set-name variable, and is used as the name of a CoS Level 2 interface set that groups subscribers.