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.
ONE TO MANY
In reg-mem architecture, clock cycle is 10 ns wide. It is proposed that reg-reg architecture be used instead, that reduces the clock cycle by 2 ns. However, it requires an addition
Delivering message through LAN: We have to devise method for delivering message through LAN phase to single, specific destination device. Sending device uses a hardware addres
Many instance of IGRP run on one physical router
Issues with Bridges Connecting Different LANs - Frame format - differences in frame structure, fields used (example Ethernet to Token Ring) - Payload size - size of data en
Q. Show the Vulnerability of the Internet? More vulnerable than private network. Wide inter-network connection. Easy access by mass public world-wide. Lack of build in
Cable, Erase, and Reload the Router Step 1: Cable the network. Cable a network that is same to the one in the topology diagram. Step 2: Clear the configuration on the rou
Can you give an overview of the components in IPSec?
contribution to afican American history
can we solve the problem using bounded buffer space if the propagation delay is arbitrarily large ?
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