H3C(based on H3C Comware,V700R001B75D112. Maturity level:demo) and the network controller R&D team(based on FRR, version 7.4) from China Telecom have implemented all the protocol extensions described in the draft as the followings:
Stub Link NLRI
Remote AS Number TLV
IPv4 Remote ASBR ID
IPv6 Remote ASBR ID
All the codepoints use the numbers assigned by the IANA.
We have also organized the interoperability test between the device and the controller. The controller can parse correctly the information that is reported by the underlay device from H3C, based on the descriptions in the draft.