HUAWEI-IPRANDCN-DCNADA-MIB provides basic DCN information.
The OID of root object is:
iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).huawei(2011).huaweiMgmt(5).hwDatacomm(25).hwIpRanDcn(300).hwIpRanDcnADA(2)