Add VLAN to H3C Optical Module Port

To add a VLAN to an optical port on an H3C switch, configure the port as access, trunk, or hybrid, then assign the VLAN ID and set the PVID if needed.Step 1: Determine the Port TypeH3C optical ports can be configured as:Access port: Belongs to a single VLAN; forwards untagged packets. Ideal for connecting end devices that do not support VLAN tagging .Trunk port: Can carry multiple VLANs; forwards tagged packets except for the port's PVID, which is sent untagged. Typically used for inter-switch links .Hybrid port: Supports multiple VLANs with configurable tagging for each VLAN. Useful when a port needs to handle both tagged and untagged traffic .Step 2: Create the VLANBefore assigning a VLAN to a port, ensure the VLAN exists:BashCopysystem-viewvlan VLAN_IDname VLAN_NAMEquit Replace VLAN_ID with the desired VLAN number (1–4094) and VLAN_NAME with a descriptive name .Step 3: Assign the VLAN to the Optical PortEnter the interface configuration mode for the optical port:BashCopyinterface GigabitEthernet 1/0/1 Replace 1/0/1 with the actual port number. 2. Set the port type:Access port:BashCopyport link-type accessport default vlan VLAN_ID Trunk port:BashCopyport link-type trunkport trunk permit vlan VLAN_ID[,VLAN_ID2,...]port trunk pvid VLAN_ID Hybrid port:BashCopyport link-type hybridport hybrid pvid VLAN_IDport hybrid vlan VLAN_ID tagged|untagged The pvid sets the default VLAN for untagged packets .Step 4: Verify VLAN AssignmentCheck the VLAN configuration and port membership:BashCopydisplay vlandisplay interface GigabitEthernet 1/0/1 This shows which VLANs are assigned and whether packets are tagged or untagged .Step 5: Save ConfigurationTo ensure the configuration persists after a reboot:BashCopysave NotesEnsure the TPID (default 0x8100) matches neighboring devices if using VLAN tagging .For MAC-based VLAN assignment, you can create MAC-to-VLAN entries and enable the feature on the port if needed .Optical ports are treated the same as Ethernet ports in terms of VLAN configuration, so the same commands apply . Following these steps will successfully add a VLAN to an H3C optical port, allowing proper traffic segmentation and VLAN tagging.