Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Time out
Timers are used to protect against lost packet. Each packet must have its own logical timers since only a single packet will be retransmitted after timeout. A single hardware timer can be used to mimic the function of multiple logical timers.
The SR receiver will acknowledge a correctly received packet whether or not it is in order. Out of order packets are buffered until any missing packets ( that is packets with lower sequence numbers) are received. The various actions taken by the SR receiver.
Packet with sequence number in ( rev base re base + N- 1) is correctly received. In this case the received packet falls within the receiver window and a selective ACK packet is returned to the sender.
If the packet was not previously received it is buffered. If this packet has a sequence number equal to the base of the window then this packet and any previously buffered and consecutively numbered packets are delivered to the receiver. The receiver window is them moved forward by the number of packets delivered to the receiver as in figure when a packet with a sequence number of 2 is received then packets 3, 4 and 5 can be delivered to the receiver.
Packet with sequence number in ( rev base n rev base-1) is received. In this case an ACK must be generated this is the packet which the receiver has previously acknowledge.
Otherwise ignores the packets.
To understand the functions of SR protocols lets take an example of a window size of four packets. The sender can sends packets 0 to 3. If first packet pkt 0 is lost and pkt 1 , 2 and 3 are received by the receiver instead of discarding these packets the receiver buffers the packets and send the ACK for the packets respectively. After the time out of pkt 0 the sender can retransmit this lost packet pkt 0 if the receiver receives the lost packet pkt 0 then the receiver deliver all the packets which was kept buffered by the receiver previously.
You are logged into a router, what command would represent you the IP addresses of routers linked to you? Ans)show cdp neighbors detail
this is Our final year project where we have to create a network infrastructure design for a banking corporation for their new setup in Australia.for this we have to create network
Q. Which steps are used at receiver end by check sum? The receiver follows these steps: The unit is divided into "k" sections each of "n" bits All sections are
TCP/IP Protocol Suite 1. What is the concept of Multi-protocol encapsulation in ATM networks? 2. Differentiate between RARP and ARP. 3. Differentiate TDP and UDP. 4. D
What are the different technologies involved in establishing WAN links? Analog connections - using conventional telephone lines; Digital connections - using digital-grade telep
RPC adumbrates the intricacies of the network by using the ordinary procedure call mechanism familiar to each programmer. A client process calls a function on a remote server and
What is autonomous system? It is a collection of routers under the control of a one administrative authority and that uses a common Interior Gateway Protocol.
What is OLTP? In the transaction server, the client component usually contains GUI and the server components usually having of SQL transactions against a database. These applic
Router Components As noted in the previous a router consists of a of input interfaces at which packets arrive and a set of output interfaces from which packets depart. T
What's the command to arrange IGRP?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd