--- title: "Interfaces sub-tab" slug: "interfaces-sub-tab" updated: 2023-04-14T18:29:33Z published: 2023-04-14T18:29:33Z canonical: "docs.zpesystems.com/interfaces-sub-tab" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.zpesystems.com/llms.txt > Use this file to discover all available pages before exploring further. # Interfaces sub-tab The Interface tab allows you to manage QoS on each available interface. The main table displays information regarding the Name, Status, Direction, and Classes for each interface. **NOTE**Status can be Disabled, Running, or Error ![](https://cdn.document360.io/763c5fb1-b9af-4ccd-9ad6-cf28ae4cd5a3/Images/Documentation/image-1678472583056.png) ### Add an Interface 1. Go to *Network :: QoS :: Interfaces*. 2. Click **Add** (displays dialog). ![](https://cdn.document360.io/763c5fb1-b9af-4ccd-9ad6-cf28ae4cd5a3/Images/Documentation/image-1678472866704.png) 3. In *Settings* menu: 1. Enter **Interface** (must match existing interface name). 2. On **QoS Direction** drop-down, select one (Input, Output, Bidirectional). 3. As needed, select **Enabled** checkbox. 4. On **Custom parameters** (advanced users only – enter FireQOS commands). 5. In *Assignment* menu, to add a Class, select item on left-side panel. Click **Add**► (item is moved). To remove a Class, select item on right-side panel. Click ◄**Remove** (item is moved). 6. In *Input* menu: (Input menu details must match *Output* menu details) Enter **Bandwidth**. On **Unit** drop-down, select one (GB/s, MB/s, KB/s, B/s, Gbit/s, Mbit/s, Kbit/s, bit/s) 7. In *Output* menu, enter **Bandwidth.** On **Unit** drop-down, select one (GB/s, MB/s, KB/s, B/s, Gbit/s, Mbit/s, Kbit/s, bit/s) 8. Click **Save**. ### Edit Interface 1. Go to *Network :: QoS :: Interfaces*. 2. In the *Name* column, locate and select checkbox, 3. Click **Edit** (opens dialog). 4. Make changes, as needed. 5. Click **Save**. ### Delete Interface 1. Go to *Network :: QoS :: Interfaces*. 2. Select checkbox to be deleted. 3. Click **Delete**. 4. On confirmation dialog, click **OK**. ### Enable Interface 1. Go to *Network :: QoS :: Interfaces*. 2. Select checkbox to be enabled. 3. Click **Enable**. ### Disable Interface 1. Go to *Network :: QoS :: Interfaces*. 2. Select checkbox to be disabled. 3. Click **Disable**.