/** Lays out GUI components. */
protected void initComponents() throws DBException {
pane = new JTabbedPane();
bandwidthPanel = new MainBandwidthPanel();
responsePanel = new MainResponsePanel();
hostPanel = new MainHostPanel();
nbarPanel = new MainNBARPanel();
netflowPanel = new MainNetFlowPanel();
oidPanel = new MainOIDPanel();
databasePanel = new MainSessionsPanel();