What is retransmission timer, Computer Networking

Assignment Help:

Q. What is Retransmission timer?

Retransmission timer

  • if an ACK is received previous to the timer goes off - destroy the timer
  • if the timer goes off before ACK arrives - retransmit the segment & reset the timer
  • Retransmission time = 2* RTT

-        not fixed because paths that IP packets take may differ

- If too short - retransmissions -> waste of bandwidth

- If too large - delay for the application program

RTT = * previous RTT + (1- ?)*current RTT, usually 90 %

Karn's algorithm:

- don't consider the RTT of a retransmitted segment in the calculation of the new RTT


Related Discussions:- What is retransmission timer

Illustrate unipolar line coding, Q Illustrate Unipolar line coding? - ...

Q Illustrate Unipolar line coding? - Simplest method is inexpensive - Utilizes only one voltage level - Polarity is habitually assigned to binary 1 a 0 is represented by

Cpm-pert network analysis problem, Solve the following CPM/PERT Network Ana...

Solve the following CPM/PERT Network Analysis problem: Given the following network and activity time estimates, determine earliest and latest activity times, slack, the expecte

Deteemine token bus of 802.3, Token Bus Physical order of stations ...

Token Bus Physical order of stations doesn't matter Line is broadcast medium "Send" token by addressing neighbour Provisions for deleting, adding stations

synchronization principles of parallel programming , In multiprocessing, v...

In multiprocessing, various processors have to to communicate with each other. Therefore, synchronisation is needed between them. The correctness and performance of parallel execut

How l2f establishes the tunnel, Can you describe the broader steps of how L...

Can you describe the broader steps of how L2F establishes the tunnel?

Random effects, Random effects are the effects attributable to an infinite...

Random effects are the effects attributable to an infinite set of levels of the factor, of which only the random sample occur in the data. For example, the investigator may want t

Illustrate about OSI architecture, Explain ISO's OSI Architecture The O...

Explain ISO's OSI Architecture The Open System Interconnection (OSI) is a standard reference model for communication among two end users in a network. It is used in developing

Authentication mechanism in vpn, What are the dissimilar ways authenticatio...

What are the dissimilar ways authentication mechanism in VPN?

Write the purpose of split horizon, Split Horizon - If you attain a protoc...

Split Horizon - If you attain a protocol's route on an interface, do not send information about that route back out that interface.

Define unicast - multicast and reserved addresses, Q. Define Unicast - Mult...

Q. Define Unicast - Multicast and Reserved Addresses? Unicast, Multicast, and Reserved Addresses Unicast address - identifies a specific device Multicast address

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd