The Modify SVI dialog box allows you to modify the details of a switched virtual interface (SVI). An SVI is a switch interface with an IP address that is a layer 3 LAN.
Right-click the device, then select Configure. The Configuration Device dialog box appears.
Select VLAN & Bridge from the Category list. The VLAN & Bridge dialog box appears.
Click Configure in SVI toolbar. The SVI details are displayed.
Select a row, then click Modify.
The following information appears:
Identifier of the VLAN interface.
IP address of the VLAN interface.
Mask IP address of the VLAN interface.
Status of the VLAN interface. Status can be Up or Down.