YANG Modules 2022-06-15 2022-09-23 See BGP Layer 2 Encapsulation Types registry. BGP Layer 2 encapsulation types must not be directly added to the "iana-bgp-l2-encaps" YANG module. They must instead be added to the "BGP Layer 2 Encapsulation Types" registry at . Module: iana-bgp-l2-encaps@2022-09-20.yang