Available bandwidth probing in hybrid home networks

Olvera-Irigoyen, Oscar; Kortebi, Abdesselem; Toutain, Laurent; Ros, David

doi:10.1109/lanman.2011.6076944

Cited by 7 publications

(8 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The values are not exactly the same as the passive measurements (about 5 %). Iperf tends to lightly underestimate the available bandwidth as reported in [1], see scenario #1 of Table IV. In spite of this relative small difference between the actual and TCP Iperf measurements and before transmitting any flow, the path selection procedure will select P 1 to forward F 1 and F 2 .…”

Section: Resultsmentioning

confidence: 74%

“…We have showed how the lightweight TCP Iperf technique (developed in our precedent work [1]) efficiently estimates the available bandwidth for path selection purposes. The scenarios we have tested represent emergent use cases in Home Networks.…”

Section: Discussionmentioning

confidence: 99%

“…Fortunately, for many applications and network scales, TCP has been optimized and is stable in different operating systems, which is not the case of most open-source available bandwidth probing tools. As a result of these considerations an as shown in [1], Iperf in lightweight TCP mode may better deal with the multiple-access queuing of hybrid paths, since it can react faster by sending adaptative and more aggressive probing streams (of short TCP flows) than most popular open source tools. Moreover, it is more accurate, faster and it can be configured to reduce the overhead associated to its default usage, i.e., with long probing intervals.…”

Section: A Principles Of Bandwidth Probingmentioning

confidence: 99%

“…We chose the T pr sufficiently short in order to reduce the probing weighted overhead while also preserving the accuracy of A measurements. From the measurement time scales the following inequality can be defined (for further details of the measurement process see [1]):…”

Section: B Inter-mac Path Selectionmentioning

confidence: 99%

“…It is worth recalling that PLC or WiFi links capacity can vary in several orders of magnitude when impacted by external interference or fading, for instance. Thus, we show how coupling Inter-MAC path selection to lightweight TCP probing [1] allows avoiding performance blind spots in HN paths and optimizing path utilization.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Available Bandwidth Probing for path selection in heterogeneous home Networks

Olvera-Irigoyen

Kortebi

Toutain³

2012

2012 IEEE Globecom Workshops

Self Cite

View full text Add to dashboard Cite

The time-varying capacity links, such as wireless links and power line communication (PLC) links, which are integrated to emergent connectivity devices of Home Networks (HNs) require QoS mechanisms to protect sensitive and critical HN flows. In this paper, we couple the "Iperf in lightweight TCP mode" probing technique (developed in a previous work to estimate available bandwidth) with the path selection procedure of the "Inter-MAC" software (which was derived from the European OMEGA project, to handle heterogeneous HN technologies). As we have shown in our previous work, the lightweight TCP Iperf probing is accurate over timevarying capacity links. On the contrary, the Inter-MAC default implementation biases the measurements, because it computes the available bandwidth by subtracting the bit counters of local home network interfaces from their correspondent physical capacities, which are supposed constants. We show that coupling our lightweight TCP Iperf technique with the Inter-MAC software is really convenient to avoid performance blind spots on HN paths. Additionally, we show a realistic use case on test bed with HN extenders based on WiFi/PLC dual-links. We show the possibility of efficiently protecting sensitive IPTV flows and enhancing the link utilization, when the PLC/WiFi links capacities are strongly degraded.

show abstract

Section: Resultsmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 99%

Section: A Principles Of Bandwidth Probingmentioning

confidence: 99%

Section: B Inter-mac Path Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Available Bandwidth Probing for path selection in heterogeneous home Networks

Olvera-Irigoyen

Kortebi

Toutain³

2012

2012 IEEE Globecom Workshops

Self Cite

View full text Add to dashboard Cite

show abstract

Realization of congestion in software defined networks

Jha

Agarwal

Singh

2015

International Conference on Computing, Communication &Amp; Automation

View full text Add to dashboard Cite

Software defined networking[1] [9] has brought a rapid change in networking industry by providing programmability and abstraction. it also enables centralization of control in infrastructure. In this paper, we describe the results of our experiment to determine the performance of SDN by simulating Open vSwitch under conditions of congestion. We did experiments on MININET by creating four compute nodes and observing their behaviour under congestion. The connections were made by using open vSwitch (OVS). We generated a lot of traffic between VMs using iperf [5] and determined at what level of traffic Open vSwitch[7] saturates leading to a drastic drop in throughput. We found that packet loss and throughput reduction can be observed when we increase number of parallel connection between nodes. Moreover the change is always sudden and drastic when it reaches the threshold value.Several experiments were performed to analyze the throughput variations caused due to traffic increase and the reason behind those variations.

show abstract