public static void addToSwitch(FIB row)
        {
            int counter = 0;

            if (fib.Count == 0)
            {
                fib.Add(row);
                Console.WriteLine("New fib entry added");
            }
            else
            {
                foreach (var fibrow in fib)
                {
                    if (fibrow.iport == row.iport && fibrow.in_cont == row.in_cont)// && fibrow.oport == row.oport && fibrow.out_cont == row.out_cont)
                    {
                        Console.WriteLine("Updating already stored");
                        fib.Remove(fibrow);
                        fib.Add(row);
                        break;
                    }
                    counter++;
                }
                if (counter == fib.Count)
                {
                    fib.Add(row);
                    Console.WriteLine("New fib entry added");
                }
            }
        }
        private void insertFib()
        {
            FIB fib = new FIB(0, 0, 0, 0);

            Console.WriteLine("Insert input port:");
            Int32.TryParse(Console.ReadLine(), out fib.iport);
            Console.WriteLine("Insert input container position:");
            Int32.TryParse(Console.ReadLine(), out fib.in_cont);
            Console.WriteLine("Insert output port:");
            Int32.TryParse(Console.ReadLine(), out fib.oport);
            Console.WriteLine("Insert output container position:");
            Int32.TryParse(Console.ReadLine(), out fib.out_cont);

            SwitchingField.addToSwitch(fib);
            //adding fib for two-way communication
            SwitchingField.addToSwitch(new FIB(fib.oport, fib.out_cont, fib.iport, fib.in_cont));
        }
        public static void clearFib(FIB row)
        {
            Console.WriteLine("Removing fib: " + row.toString());
            int id = 0;

            foreach (var temp in fib)
            {
                if (row.iport == temp.iport)
                {
                    if (row.in_cont == temp.in_cont)
                    {
                        if (row.oport == temp.oport)
                        {
                            if (row.out_cont == temp.out_cont)
                            {
                                id = fib.IndexOf(temp);
                            }
                        }
                    }
                }
            }
            fib.RemoveAt(id);
        }