...
   |  +--rw (signaling-option)?
   |     ...
   |     +--:(bgp)
   |     |  +--rw (bgp-type)?
   |     |     +--:(l2vpn-bgp)
   |     |     |  +--rw ce-range?     uint16
   |     |     |  +--rw pw-encapsulation-type?
   |     |     |  |       identityref
   |     |     |  +--rw vpls-instance
   |     |     |     +--rw vpls-edge-id?         uint16
   |     |     |     +--rw vpls-edge-id-range?   uint16
   |     |     +--:(evpn-bgp)
   |     |        +--rw evpn-type?                leafref
   |     |        +--rw service-interface-type?
   |     |        |       identityref
   |     |        +--rw evpn-policies
   |     |           +--rw mac-learning-mode?
   |     |           |       identityref
   |     |           +--rw ingress-replication?
   |     |           |       boolean
   |     |           +--rw p2mp-replication?
   |     |           |       boolean
   |     |           +--rw arp-proxy {vpn-common:ipv4}?
   |     |           |  +--rw enable?           boolean
   |     |           |  +--rw arp-suppression?
   |     |           |  |       boolean
   |     |           |  +--rw ip-mobility-threshold?
   |     |           |  |       uint16
   |     |           |  +--rw duplicate-ip-detection-interval?
   |     |           |          uint16
   |     |           +--rw nd-proxy {vpn-common:ipv6}?
   |     |           |  +--rw enable?          boolean
   |     |           |  +--rw nd-suppression?
   |     |           |  |       boolean
   |     |           |  +--rw ip-mobility-threshold?
   |     |           |  |       uint16
   |     |           |  +--rw duplicate-ip-detection-interval?
   |     |           |          uint16
   |     |           +--rw underlay-multicast?
   |     |           |       boolean
   |     |           +--rw flood-unknown-unicast-suppression?
   |     |           |       boolean
   |     |           +--rw vpws-vlan-aware?        boolean
   |     |           +--rw bum-management
   |     |           |  +--rw discard-broadcast?
   |     |           |  |       boolean
   |     |           |  +--rw discard-unknown-multicast?
   |     |           |  |       boolean
   |     |           |  +--rw discard-unknown-unicast?
   |     |           |          boolean
   |     |           +--rw pbb
   |     |              +--rw backbone-src-mac?
   |     |                      yang:mac-address
   |     +--:(ldp-or-l2tp)
   |        ...