# Configuring an SLT

Use this procedure to configure an SLT.

| Important
| For SMLT to function properly, you must manually disable STP on all SMLT, IST, and SLT ports in all spanning tree groups or instances to which the ports belong. You must also disable STP on all edge switch MLT ports that are connected to the SMLT or SLT.

Ports that are already configured as MLT or MLT-based SMLT cannot be configured as a single port SLT. You must first remove the split trunk and then reconfigure the ports as an SLT.

## Procedure steps

1. From the Device Physical View, double-click a port.

2. Select the SMLT tab.

   | Note
   | If the MltId field is not zero, this indicates that the port is already configured as an MLT or MLT-based SMLT. If so, you cannot configure an SLT on the port.

3. Click Insert.

4. In the SmltId field, enter an unused SMLT ID number from 1 to 512.

   To view the SMLT IDs that are already in use on your switch, see Viewing SLTs configured on your switch.

5. Click Insert.

## Variable definitions

The following table outlines the parameters of the Port X/X tab.

Table 1. Edit Port X/X tab parameters
Variable | Value
--- | ---
Index | Indicates the index number for the port.
MltId | Read only field displaying either a value between 1 and 32 indicating that the port is part of an MLT or a value of 0 indicating the port has no MLT assigned and that it can be configured for SLT.
SmltId | Specifies the Split MLT ID, an integer from 1 to 512.