HUAWEI-DEVICE-EXT-MIB is used to obtain the following information of a device: ESN, VRP name and version, and product name and version.
Root directory:
iso(1).org(3).dod(6).internet(1).private(4),enterprises(1).huawei(2011).huaweiMgmt(5).hwDatacomm(25).hwDeviceExtMIB(188).