Operation Manual – VLANH3C S3100 Series Ethernet Switches Chapter 2 VLAN Configuration2-82.2.6 Troubleshooting Ethernet Port ConfigurationSymptom: Fail to configure the default VLAN ID of an Ethernet port.Solution: Take the following steps.z Use the display interface or display port command to check if the port is a trunkport or a hybrid port.z If the port is not a trunk or hybrid port, configure it to be a trunk or hybrid port.z Configure the default VLAN ID of the port.Note:For information about the display interface command, refer to Port BasicConfiguration in this manual.2.3 Configuring a Protocol-Based VLANNote:The contents of this section are only applicable to the S3100-EI series among S3100series switches.2.3.1 Protocol-Based VLAN Configuration Task ListComplete these tasks to configure protocol-based VLAN:Task RemarksConfiguring a Protocol Template for a Protocol-Based VLAN RequiredAssociating a Port with a Protocol-Based VLAN RequiredDisplaying Protocol-Based VLAN Configuration Optional2.3.2 Configuring a Protocol Template for a Protocol-Based VLANI. Configuration prerequisitesCreate a VLAN before configuring the VLAN as a protocol-based VLAN.II. Configuration procedureFollow these steps to configure the protocol template for a VLAN: