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Packet Sniffing In A Switched Environment
White Papers Packet sniffing tools have been available from the early days of networked computing environments. This paper focuses on the threat of packet sniffing in a switched environment, and briefly explores the effect in a non-switched environment.
[February 16, 2005, 23:00]
Packet Loss In TCP Hybrid Wireless Networks
White Papers The reason is that such networks exhibit both a high latency and a high packet loss, a combination that stresses TCP's congestion avoidance algorithm. Accurate modelling of the packet loss process in such networks is not an easy task, so very...
[December 26, 2007, 23:00]
Packet Voice Impairment Test White Paper
White Papers PVIT stands for Packet-Voice-Impairments-Test or Packet-Voice-Integrity-Test. cally address the next generation VoP (Voice-over-Packet)applications. It is one of a series of VQT (Voice-Quality-Test)tests designed by Sage to speci?
[January 22, 2004, 23:00]
Packet Capture Efficiency With Network Instruments’ Observer
White Papers Tests performed with random packet size distribution had shown no loss in captured packets at any traffic rates. The only condition when Observer was seen to drop a small percentage of packets was when capturing a steady stream of fixed size, small...
[January 30, 2004, 23:00]
Packet Length Influence On The Throughput Of Interfering Bluetooth Networks
White Papers More specifically, the paper investigates the influence of choice of packet lengths on the throughput. In this paper, a homogeneous system of interfering Bluetooth networks is analyzed with respect to network and system throughput.
[November 21, 2005, 23:00]
Reorder Detecting TCP (RD-TCP) With Explicit Packet Drop Notification (EPDN)
White Papers Numerous studies have shown that packet reordering is common, especially in networks where there is high degree of parallelism and different link speeds. Reordering of packets decreases the TCP performance of a network, mainly because it leads to...
[January 14, 2008, 23:00]
Fast IP Packet Delineator
White Papers A fast-acting synchronisation mechanism for Internet Protocol (IPv4) packet delineation from an ingress bitstream is presented in this paper. It builds on delineation and scrambling mechanisms developed for Asynchronous Transfer Mode (ATM...
[March 13, 2005, 23:00]
Improving The Performance Of TCP In The Case Of Packet Reordering
White Papers Numerous studies have shown that packet reordering is common, especially in high speed networks where there is high degree of parallelism and different link speeds. Reordering of packets decreases the TCP performance of a network, mainly because it...
[January 14, 2008, 23:00]
Billing And Usage Collection Strategies For General Packet Radio Services
White Papers General Packet Radio Services, or GPRS, is the mobile networking industry’s answer to enabling pervasive mobile data networking and mobile commerce. GPRS is a technology that is the bridge between the current GSM-based mobile networks and the next...
[March 8, 2004, 23:00]
A Comparison Of RaDiO And CoDiO Packet Scheduling Algorithms Over IEEE 802.11 WLANs
White Papers However, due to the fact that Internet offers a best-effort service with no guarantee of reliable packet transmission and bounded delay variation, video frame scheduling is crucial in video streaming.
[February 7, 2006, 23:00]
Cisco Security Advisory: Cisco IOS Malformed OSPF Packet Causes Reload
White Papers A Cisco device running Internetwork Operating System (IOS) and enabled for the Open Shortest Path First (OSPF) protocol is vulnerable to a Denial of Service (DoS) attack from a malformed OSPF packet. The OSPF protocol is not enabled by default.
[October 7, 2004, 0:00]
An Algorithm For Reverse Traffic Channel Rate Control For Cdma2000 High Rate Packet Data Systems
White Papers cdma2000 high rate packet data standard is a third generation wireless standard that provides higher download speeds for wireless data users. This paper describes an algorithm to control the data rate at which access terminals transmit data on the...
[August 3, 2004, 0:00]
Multiple Traffic Scheduling For Enhanced General Packet Radio Service
White Papers The state-of-the-art cellular networks such as General Packet Radio Service systems (GPRS) with Enhanced Data rates for Global Evolution (EDGE) air interfaces can support a wide variety of applications, e.g.web browsing and video conferencing.
[March 21, 2005, 23:00]
Measuring Link Bandwidths Using A Deterministic Model Of Packet Delay
White Papers This paper describes a deterministic model of packet delay and uses it to derive both the packet pair property of FIFO-queueing networks and a new technique (packet tailgating) for actively measuring link bandwidths.
[April 5, 2006, 0:00]
Effect Of Packet Size On Loss Rate And Delay In Wireless Links
White Papers Packet loss in lower layers, however, is typically hidden from the upper protocol layers by link or MAC layer protocols. For this reason, errors in the physical layer are observed by the application as higher variance in end-to-end delay rather...
[September 26, 2007, 0:00]
On The Reverse Link Capacity Of Cdma2000 High Rate Packet Data Systems
White Papers cdma2000 high rate packet data standard, also known as IS-856, is a next generation solution to high-speed wireless internet access. The IS-856 air interface incorporates several advanced techniques such as adaptive modulation and coding, turbo...
[August 3, 2004, 0:00]
On Making TCP More Robust To Packet Reordering
White Papers Previous research indicates that packet reordering is not a rare event on some Internet paths. Reordering can cause performance problems for TCP's fast retransmission algorithm, which uses the arrival of duplicate acknowledgments to detect segment...
[January 14, 2008, 23:00]
Benefits Of Packet Aggregation In Ad-Hoc Wireless Network
White Papers In addition, IEEE 802.11 networks suffer from a high packet overhead - much higher than Ethernet, for example. As networks advance to higher bitrates the proportion of this overhead increases, because packet preambles are transmitted at the lowest...
[May 12, 2006, 0:00]
Performance Analysis Of Cell Switching Management Scheme In Wireless Packet Communications
White Papers This paper proposes a novel cell switching (e.g.packet handoff) scheme to support QoS guarantee for downlink in EGPRS (Enhanced General Packet Radio Service) network. Third generation wireless networks carry traffic from heterogeneous sources such...
[August 1, 2007, 0:00]
TCP And UDP Performance For Internet Over Optical Packet-Switched Networks
White Papers Optical Packet-Switched (OPS) network is a strong candidate for the future Optical Internet. This paper studies packet aggregation and deflection routing as employed in OPS networks on the performance of upper layer Internet protocols represented...
[January 14, 2008, 23:00]
