notifChan := make(chan api.Message, 100)
simpleCountersSubs, _ := ch.SubscribeNotification(notifChan, interfaces.NewVnetInterfaceSimpleCounters)
notifChan := make(chan api.Message, 100)
simpleCountersSubs, _ := ch.SubscribeNotification(notifChan, interfaces.NewVnetInterfaceSimpleCounters)