"trap就是snmp中的trap信息,用于设备告警。如[Huawei]disp trap Trapping buffer configuration and contents : enabled Allowed max buffer size : 1024 Actual buffer size : 256 Channel number : 3 , Channel name : trapbuffer Dropped messages : 0 Overwritten messages : 0 Current messages : 3 #May 25 2019 17:10:45-08:00 Huawei DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011. 5.25.191.3.1 configurations have been changed. The current change number is 3, the change loop count is 0, and the maximum number of records is 4095."