sack
RSS sackSACK TCP Resilience Improvement With OPNET
White Paper SACK TCP was designed to be capable of surviving multiple segment loss. This paper studies the resilience behavior of SACK TCP in both cases and finds that there is a critical point at which the behavior of SACK TCP changes significantly. [26 Dec 2007]
A Comparative Analysis of TCP Tahoe, Reno, New-Reno, SACK and Vegas
White Paper The purpose of this paper is to analyze and compare the different congestion control and avoidance mechanisms which have been proposed for TCP/IP protocols, namely: Tahoe, Reno, New-Reno, TCP Vegas and SACK. [05 Dec 2007]
Worst-Case Performance Limitation of TCP Sack and a Feasible Solution
White Paper In the present implementation of Transmission Control Protocol (TCP) selective acknowledgment (SACK), every SACK block needs 8 bytes to carry information about the received packets, back to the sender. [14 Jan 2008]
New Reno and SACK TCP Implemented in UMTS Networks: A Performance Analysis
White Paper In this paper the performances of two TCP variants are evaluated and compared, namely TCP New Reno and TCP SACK. Universal Mobile Telecommunication System shortly UMTS is seen as the future mobile network. [26 Dec 2007]
Editor's Blog: Ever tried to sack a CIO?
Comment His claim: of all the senior managers in a business, the CIO is the least likely to get the sack. HR directors, of course, can be judged on the number of people they sack and the quantities of pointless forms they manage to get staff to complete. [06 Mar 2008]
TCP-Peach and FACK/SACK Options: Putting The Pieces Together
White Paper In this paper protocol refinements for TCP-Peach are proposed to allow it to be utilized in cooperation with FACK/SACK options. TCP-Peach has recently been proposed for IP network scenarios characterized by long round trip times and high bit error... [14 Jan 2008]
Email blunderers face the sack
News A third of respondents to a recent silicon.com survey said they would have little option but to sack an employee if they offended a client or customer with a Digital Blunder. However, this contact centre employee was lucky, a third of bosses wouldn... [02 Sep 2003]
On the Resilience of SACK and NewReno TCP
White Paper For SACK and NewReno TCP, the paper finds that a restoration objective of 600 ms to 1 s is appropriate. The de facto requirement in traditional telephone networks is to restore failures in 50 milliseconds or less. [14 Jan 2008]
High-Resilience SACK TCP
White Paper The most up-to-date TCP version, SACK TCP, was designed to be capable of surviving multiple segment loss. However, it has been found that if too many segments in one transmission window are lost, even if SACK TCP transitions into Fast Recovery, it... [14 Jan 2008]
Petri Net Approach to Improving SACK TCP Resilience
White Paper The most up-to-date TCP version, SACK TCP, was designed to be capable of surviving multiple segment loss. However, it has been found that if too many segments in one transmission window are lost, even if SACK TCP transitions into Fast Recovery, it... [14 Jan 2008]
HP porn scandal leaves 100 facing sack
News As many as 100 HP employees face the sack for alleged email abuse. HP would not confirm reports that the staff were being disciplined for sending emails containting pornographic material, but did admit that an investigation was taking place. [17 Jul 2002]
Pacing to Improve SACK TCP Resilience
White Paper The most up-to-date TCP version, SACK TCP, was designed to be capable of surviving multiple segment loss. SACK TCP tends to send out segments in clusters and congest bottleneck routers, which could potentially degrade SACK TCP performance... [14 Jan 2008]
Effectiveness of TCP SACK, TCP HACK and TCP Trunk Over Satellite Links
White Paper This paper reports the study on the performance enhancements of two extensions to the standard TCP implementation - Selective Acknowledgement (SACK) and Header Checksum (HACK) - over satellite links that are characterized by high latency and high... [14 Jan 2008]
Comparison of ECN-ELFN and SACK on TCP's Performance for Ad Hoc Networks
White Paper The authors implemented a testbed and measured the actual energy cost as well as goodput of running TCP-SACK in ad hoc network scenarios. This paper studies the energy cost (protocol processing and communication cost) and goodput of two different... [05 Dec 2007]
Energy Consumption of TCP Reno, NewReno, and SACK in Multi-Hop Wireless Networks
White Paper This paper compares the energy consumption behavior of three versions of TCP - Reno, Newreno, and SACK. The results indicate that, in most cases, using total energy consumed as the metric, SACK outperforms Newreno and Reno while Newreno performs... [05 Dec 2007]
