The command to operate VLAN list of 'zxAnGponOPVlanPortTable'. The multi-variables binding rule should be complied with when a manager configures port VLAN cmd. According to this rule, all the related mib variables must be included in one SNMP set operation. There are two types of variables: mandatory and optional. All of the mandatory variables must be included in one SNMP set operation. Optional variables may be included in one SNMP set operation with the mandatory variables, but must not be used alone. To configure VLAN, the mandatory and optional variables are as follows: mandatoty: zxAnGponOPVlanPortCmd, zxAnGponOPVlanPortVid optional : none There are two groups of operation command, the first group includes addVlan and delVlan, the second group includes addAllVlan and delAllVlan. For an ONU interface, two groups of operation command can't be use at the same time. When zxAnGponOPVlanPortCmd is addAllVlan or delAllVlan and then zxAnGponOPVlanPortVid is invalid.