Kindly check the below link for snmp configuration in the E9000 :
https://support.huawei.com/hedex/pages/EDOC1000053358YEF0907R/12/EDOC1000053358YEF0907R/12/resources/en-us_topic_0132153661.html?ft=0&fe=10&hib=6.1.4.3.4&id=EN-US_TOPIC_0132153661&text=Configuring%2520the%2520MM910%2520IP%2520Addresses%2520and%2520SNMP%2520Trap&docid=EDOC1000053358