Droptail in Ns2

            Are you guys struggling to select the research platform based on droptail? No worries, our research professionals are providing the appropriate guidance for research implementation and to complete the entire research project based on droptail in Ns2. Firstly, we have know the importance of droptail.

          The droptail is denoted as the traditional technique that is capable to manage the network nodes based on the queue length through setting the maximum queue length for all the queue and that is functioning to accept the incoming packets up to reach the maximum length. On the other hand, the incoming packets are rejected when the queue size is decreased. Let’s have a look about the significance of queue management using droptail in the following.

Queue Management Using Droptail

            The packets from the traffic flow are accepted and they are queued to process while the possession of queue is less than the maximum value. The queue possession is exceeded while it is permitted for the maximum process and the subsequent packets are discarded through the when the queue possession is decreased. There are two significant methods to eradicate the incoming packets when the queue is full and the methods are listed below.

  • Remove queue headers
  • The routers are discarding the packets in the starting stage of queue, when the packets are coming but queue is full
  • Eliminate in queue
  • It is about the discarding process of random queue while the packet is full and new package may arrive to the queue

For your reference, our experienced research professionals have highlighted the sample implementation process of the droptail in the following.

Example for Droptail

    FIFO scheduling and drop on overflow buffer management is considered as the typical processes of internet routers. We have enlisted the implementation process of the Queue and droptail object through the declaration of class with the OTcl linkage in the following.


* A bounded, drop-tail queue
class DropTail : public Queue {
void enque(Packet*);
Packet* deque();
PacketQueue q_;

               The droptail is derived with the base class and it is considered as the provision of required functionalities. It is deployed to regulate the FIFO queue to execute the objects based on PacketQueue class. The version of enque and deque in the droptail is highlighted in the following.

* drop-tail
void DropTail::enque(Packet* p)
if (q_.length() \>= qlim_) {
Packet* DropTail::deque()
return (q_.deque());

            Now, let us discuss the contemporary research implementation in droptail in Ns2 along with the carrying out process for your quick understanding.

Droptail Implementation

         Mainly, the droptail is denoted as the first in first out scheme of queue management and it is deployed to regulate the packets in the given network. In droptail, packets are transmitted through the arrival them. The packets baesd on drotail are transmitted with the arrival order and the process is functioning with this implementation including,

  • Initialization
  • Enqueuing module
  • Dequeuing module

        To this end, we say that we have full focus on the latest droptail in Ns2. You can contact us for more research process based on this field used to develop your research project. As well as, we support you in developing your own ideas too.