builder.addAugmentation(IfL2vlan.class, l2vlan);
}else if(ifType.equals(IfTunnel.class)){
IfTunnel tunnel = new IfTunnelBuilder().setTunnelDestination(null).setTunnelGateway(null).setTunnelSource(null)
builder.addAugmentation(IfL2vlan.class, l2vlan);
}else if(ifType.equals(IfTunnel.class)){
IfTunnel tunnel = new IfTunnelBuilder().setTunnelDestination(null).setTunnelGateway(null).setTunnelSource(null)