Please see additional information from other SW when im able to add port as untagged
show ports 3 information detail 
Port:   3(name):
Virtual-router: VR-Default
Type:           UTP
Random Early drop:      Unsupported
Admin state:    Enabled with  auto-speed sensing  auto-duplex
Link State:     Active, 1Gbps, full-duplex
Link Counter: Up        8 time(s)
VLAN cfg: 
         Name: VLAN_NAMES 802.1Q Tag = 236, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VLAN_NAMES 802.1Q Tag = 237, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VLAN_NAMES 802.1Q Tag = 238, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VLAN_NAMES 802.1Q Tag = 241, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VLAN_NAMES 802.1Q Tag = 325, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VLAN_NAMES 802.1Q Tag = 347, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VLAN_NAMES 802.1Q Tag = 205, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VLAN_NAMES 802.1Q Tag = 600, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VLAN_NAMES 802.1Q Tag = 11, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VLAN_NAMES 802.1Q Tag = 12, MAC-limit = No-limit, Virtual router: VR-Default
         Name: VMAN_NAME  Internal Tag = 324, MAC-limit = No-limit, Virtual router: VR-Default
STP cfg:
Protocol: 
         Name: VMAN_NAME Protocol: ANY      Match all protocols.
Trunking:       Load sharing is not enabled.
EDP:            Enabled
ELSM:           Disabled
Ethernet OAM:           Disabled
Learning:       Enabled
Unicast Flooding:       Enabled
Multicast Flooding:     Enabled
Broadcast Flooding:     Enabled
Jumbo:  Enabled, MTU= 9216
Flow Control:   Rx-Pause: Enabled       Tx-Pause: Disabled
Link up/down SNMP trap filter setting:  Enabled
Egress Port Rate:       No-limit
Broadcast Rate:         No-limit
Multicast Rate:         No-limit
Unknown Dest Mac Rate:  No-limit
QoS Profile:    None configured
Ingress Rate Shaping :          Unsupported
Ingress IPTOS Examination:      Disabled
Ingress 802.1p Examination:     Enabled
Ingress 802.1p Inner Exam:      Disabled
Egress IPTOS Replacement:       Disabled
Egress 802.1p Replacement:      Disabled
NetLogin:                       Disabled
NetLogin port mode:             Port based VLANs
Smart redundancy:               Enabled
Software redundant port:        Disabled
auto-polarity:                  Enabled
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configure vman VMAN_NAME add ports 47 tagged
configure vman VMAN_NAME add ports 3 untagged