Hi there,UDLD is a Cisco proprietary protocol, It is used to monitor physical configurations and detects unidirectional links of Ethernet links connected using fibers or twisted-pair cables. If Cisco needs to interconnect with Huawei, you can use the standard protocol DLDP to replace UDLD. ETH OAM can also replace it, with equivalent detection capabilities.
DLDP Configuration of Huawei Switch:
https://support.huawei.com/hedex/hdx.do?docid=EDOC1100064949&id=dc_cfg_dldp_0001&text=%2525253Cfont%25252Bcolor%2525253D%25252522%25252523B60005%25252522%2525253EDLDP%2525253C%2525252Ffont%2525253E%25252BConfiguration&lang=en