# port > RouterOS directory reference for /interface/ethernet/switch/port. ----------- ## interface/ethernet/switch/port **Syscap:** musicswitch **Type:** Directory Ingress customer TPID override allows accepting specific frames with a custom customer tag TPID. The default value is for the tag of 802.1Q frames. Egress customer TPID override allows custom identification for egress frames with a customer tag. The default value is for the tag of 802.1Q frames. Ingress service TPID override allows accepting specific frames with a custom service tag TPID. The default value is for the service tag of 802.1AD frames. Egress service TPID override allows custom identification for egress frames with a service tag. The default value is for the service tag of 802.1AD frames. Prevents MAC relearning of static entries until UFDB timeout if the MAC is already learned on another port. Prevents MAC relearning until UFDB timeout if the MAC is already learned on another port. Enable or disable MAC address learning and set the MAC limit on the port. MAC learning limit is disabled by default. Unicast loopback on port. When enabled, it permits sending back when the source port and destination port are the same for known unicast packets. Multicast loopback on port. When enabled, it permits sending back when the source port and destination port are the same for registered multicast or broadcast packets. Action for packets when UFDB already contains a static entry with such a MAC but with a different port. Enable or disable dropping packets when UFDB entry has action src-drop. Custom port profile for port isolation/leakage configurations. - Port-level isolation profile 0. Uplink port - allows the port to communicate with all ports in the device. - Port-level isolation profile 1. Isolated port - allows the port to communicate only with uplink ports. - Port-level isolation profile 2 - 31. Community port - allows communication among the same community ports and uplink ports. Port VLAN type specifies whether VLAN ID is used in UFDB learning. The network port learns VLAN ID in UFDB, edge port does not - VLAN 0. It can be observed only in IVL learning mode. Enable or disable MAC-based VLAN translation on the port. Frame type for which MAC-based service VLAN translation applies. Frame type for which MAC-based customer VLAN translation applies. Whether to filter untagged frames on the port. Whether to filter tagged frames with priority on the port. Whether to filter tagged frames on the port. Egress VLAN table (VLAN Tagging) lookup: - `egress-vid` - lookup VLAN ID is `CVID` when an Edge port is configured, `SVID` when a Network port. - `according-to-bridge-type` - lookup VLAN ID is `CVID` when a customer VLAN bridge is configured, `SVID` when a service VLAN bridge. Egress VLAN tagging action on the port. Analyzer port for port-based ingress mirroring. Analyzer port for port-based egress mirroring. Specifies applied QoS assignment schemes on the ingress of the port. Default customer PCP of the port. Default service PCP of the port. Enables or disables PCP propagation for initial PCP assignment on ingress. - If the port `vlan-type` is an Edge port, the service PCP is copied from the customer PCP. - If the port `vlan-type` is a Network port, the customer PCP is copied from the service PCP. Enables or disables egress PCP propagation. If the port `vlan-type` is an Edge port, the service PCP is copied from the customer PCP. If the port `vlan-type` is a Network port, the customer PCP is copied from the service PCP. Enables or disables DSCP to internal DSCP mapping on the port. Enables or disables PCP or DSCP based DEI change on the port. Enables or disables PCP or DSCP based PCP change on the port. Enables or disables PCP or DSCP based DSCP change on the port. The new value of drop precedence for the PCP/DEI to drop precedence (drop | green | red | yellow) mapping. Multiple mappings are allowed separated by a comma e.g. "0-7:yellow,8-15:red". The new value of DSCP for the PCP/DEI to DSCP mapping. Multiple mappings are allowed separated by a comma e.g. "0-7:25,8-15:50". The new value of DEI for the PCP/DEI to DEI mapping. Multiple mappings are allowed separated by a comma e.g. "0-7:0,8-15:1". The new value of PCP for the PCP/DEI to PCP mapping. Multiple mappings are allowed separated by a comma e.g. "0-7:3,8-15:4". The new value of internal priority for the PCP/DEI to priority mapping. Multiple mappings are allowed separated by a comma e.g. "0-7:5,8-15:15". Internal priority (0..15) mapping to queue (0..7) per port. Set port to use either strict or weighted round robin policy for traffic shaping for each queue group. Custom include to count dropped packets for switch port custom-drop-packet counter. Custom include to count dropped packets for switch port tx-queue-custom0-drop-packet and bytes for tx-queue-custom0-drop-byte counter. Custom include to count dropped packets for switch port tx-queue-custom1-drop-packet and bytes for tx-queue-custom1-drop-byte counter. Custom include to count dropped packets for switch port policy-drop-packet counter. ## interface/ethernet/switch/port **Syscap:** rbswitch **Type:** Directory Changes the VLAN lookup mechanism against the VLAN Table for ingress traffic. `disabled` - disables checking against the VLAN Table completely, no traffic is dropped. `fallback` - checks tagged traffic against the VLAN Table, forwards all untagged traffic. `check` - checks tagged traffic, drops all untagged traffic. `secure` - checks tagged traffic, drops all untagged traffic, both ingress and egress ports must be found in the VLAN Table otherwise traffic is dropped. Sets the action performed on the port for egress traffic. `add-if-missing` - adds a VLAN tag using `default-vlan-id` from the ingress port, used for trunk ports. `always-strip` - removes a VLAN tag, used for access ports. `leave-as-is` - does not add or remove a VLAN tag, used for hybrid ports. Adds a VLAN tag with the specified VLAN ID on all untagged ingress traffic on a port. Should be used with `vlan-header=always-strip` to configure the port as an access port. For hybrid ports `default-vlan-id` is used to tag untagged traffic. If two ports have the same `default-vlan-id`, the VLAN tag is not added since the switch chip assumes traffic is being forwarded between access ports. Whether to send ingress packet copy to the `mirror-target` port. Whether to send egress packet copy to the `mirror-target` port. Selects a single mirroring ingress target port. Mirrored packets from `mirror-ingress` will be sent to the selected port. Limits the received (ingress) traffic with packet drops. Everything that exceeds the defined limit will be dropped. Limits the transmitted (egress) traffic. The shaper tries to queue packets that exceed the limit instead of dropping them. Amount of broadcast, unknown multicast and/or unknown unicast traffic limited to a percentage of the link speed. Limit unknown unicast traffic on a switch port. Limit unknown multicast traffic on a switch port. Limit broadcast traffic on a switch port. Layer 3 Hardware Offloading. Hardware routing via this port. Only disables hardware routing from/to this particular port when set to `no`.