SNMP set giving undo failed error on the icx switch

Hi,I want to untagg the port 2 in VLAN 1050. Initially, it is untagged in VLAN 1025.                Request to set the row as “untagged” (untagg port 2 in VLAN 1050)print_r(snmp2_set(‘HOST’, ‘test12345’, ‘1.3.6.1.4.1.1991.1.1.3.2.6.1.4.1050.2’, ‘i’, ‘2’));Gettting error: Warning:  snmp2_set(): Error in packet at ‘SNMPv2-SMI::enterprises.1991.1.1.3.2.6.1.3.1050.2’: undoFailed I have also tried using the following SNMP OID:print_r(snmp2_set(‘HOST’,’test1234′,’dot1qPvid.2′,’u’,’1050′));print_r(snmp2_set(‘HOST’,’test1234′,’dot1qVlanStaticUntaggedPorts.1050′,’x’,’400000000000000000000000′));The above calls are also failing and I am getting a no response.Any suggestions?