Bandwidth tag should be used when asking questions about data transfer rates over various data buses or network protocols.

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Why is iPerf UDP bandwidth so much lower that iPerf TCP?

I need to perform a single direction iPerf test. Bi-directionally, using TCP, I get 25Mbps. But single direction using UDP I only get 0.7Mbps. Why is UDP rate so much lower that TCP? iPerf client ...
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3answers
166 views

What is the relationship between WiFi strength , the bandwidth, and the Internet speed?

My school has a very low WiFi strength, -70dBm, but I have no problem downloading or streaming (the Internet speed test is 22/15 Mbps). At home, the WiFi strength fluctuate a lot; when it's above -50 ...
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33 views

In Tomato firmware for router, how do I determine how much bandwidth a certain IP address or MAC address has consumed for the day?

I can't seem to figure out where I can find an info about connected devices' bandwidth usage on my router running Tomato firmware. I just want to see a total of a certain device's bandwidth usage for ...
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117 views

Controlling shared internet connection on LAN, (no switch, just a basic lan with a modem and PC with two network adapter)

I have shared my internet modem connection using a PC with two LAN adapters. I want to control the access of shared internet on my LAN. IP of the internet modem is ----------> 192.168.1.1 Shared ...
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4answers
3k views

What is the actual speed of SATA 3?

Google says it is running at 6Gb/s. The throughput is at 600MB/s. 600MB/s equals 4.8Gb/s. Does this mean that the bandwidth is 6Gb/s but the actual throughput is 4.8Gb/s ?
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1answer
111 views

Skype Bandwidth usage for online teaching

We are online teaching via skype, we use Video and screen sharing. We have 15 Teachers. Details of our Data we have up to 1.75 mbps data speed from our ISP. This is our problem everyday if all 15 ...
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1answer
454 views

Is the bandwidth of the router usage divided equally?

I have a router/modem NETGEAR VEGN2610 which supports QoS. Assuming there are 2 computers downloading something that requires high bandwidth (for example a movie with torrents), will the speed be ...
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318 views

Prioritising network bandwidth with Huawei E5172 router

I have Huawei 5172 router and I wonder is it possible to prioritise network bandwidth for some computers in my home network? By 'prioritise' I mean in a general way, not any specific protocol or ...
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1answer
117 views

Squid proxy bandwidth hogging prevention

I have a squid proxy acting as a parental filter on our LAN, however it's very easy for one users downloading to slow everyone else down. My question is: Is it possible to set up something that ...
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1answer
55 views

Sharing internet access - solid way to guarantee good bandwidth for VoIP and gaming?

we have a linksys E2500 here The internet connection is a low 2 mbit with 1 mbit upload. The connection is shared by around 16 people (yayyy). I want teamviewer, skype, VoIP work well, as well as a ...
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1answer
56 views

Data from two modems for faster browsing? [duplicate]

I'm stuck with DSL Lite (a slow Internet connection). Is it possible to speed up my AT&T 'DSL Lite' connection by augmenting it with some bandwidth from my Cellphone's tethered 'hot-spot' ...
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3answers
137 views

Why are we getting low download speed as compared to the our bandwidth from browser? [closed]

Our bandwidth is 16Mbps 1:1 leased line, and we have been getting download speed of about 1.3+ MB/S earlier. But for 2 weeks we are getting a maximum of just 150-200 KB/S although the speed test ...
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0answers
488 views

Netgear Router Throttling Bandwidth

I have a Netgear WNDR3700v4 wireless gigabit router. I've tested my internet connect speed directly through my modem via speedtest.net at just over 120 Mbps. While testing through my router ...
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328 views

How to limit the USB bandwidth a device can allocate on Linux

How do you put an cap on the amount of bandwidth a USB device can allocate on Linux? I have a couple of cheap USB webcams that I'm trying to running simeltaneously. Running v4l2-ctl ...
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2answers
877 views

What might cause high latency when bandwidth is saturated?

I've been having network problems for a while and I'm trying to track down the source of the issue. Yesterday, I was transferring a file from my laptop to my desktop with SCP, over my wifi ...
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0answers
83 views

How to use QOS (quality of service) on windows 7

i have 15 computers on LAN and other clients who connect through wifi. all connections pass through a windows 7 computer. i want to give high priority for some applications, urls, ip addresses using ...
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6answers
8k views

Does increasing upload or download speed reduce ping?

I have a 5 MB/s connection, but I always notice high ping when playing online games. When the network is stable (i.e. when pingtest.com reports the connection as 5 MB/s), the ping stays at 50 ms, but ...
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1answer
298 views

How to kill LOW bandwidth connections?

I am sitting behind an absolutely terrible router (NVG589, NVG599 is no better) mandated by my ISP, AT&T. The problem is that it has an abysmal limit of 2056 simultaneous connections. Since my ...
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1answer
38 views

Audio streaming bandwith

I am trying to understand the bandwidth consumed by hosting a Audio Streaming server and Web Site that will host the stream. Server A: will host the IceCast server & Media Server B: will ...
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57 views

Do some recent Intel-chipset-based Motherboard support PCIe 3.0? Web is undecided

I'm thinking of getting a motherboard, which I need to (properly) support PCIe 3.0. Now, I've been looking at Intel's desktop chipset website, e.g. here, and that says their current performance ...
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1answer
70 views

Are the rating of switches the total bandwidth for all communication or between any two ports

Let's say I have 4 computers on a gigabit switch. Is the switch's gigabit rating the speed for all connections added up or the speed between any two computers? For example if computer 1 was ...
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1answer
126 views

“Total Available Bandwidth” on modem's telnet interface?

I've been tinkering with my Thomson SpeedTouch 510, FW v. 6.2.15.7. This is the partial output of the "adsl info" menu, via the telnet interface: What does "Total Available Bandwidth" stands for? ...
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136 views

Someone is uploading stuff from my pc

I am getting very slow Internet experience. In vnstat I see rx: 4 kbit/s 3 p/s tx: 94.74 Mbit/s 14072 p/s^C eth4 / traffic statistics rx ...
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139 views

Can I have server and client on the same machine and run network bandwidth test using iperf?

I have two ethernet ports (eth0 and eth1) on my system. I've tested the bandwidth with two systems and got ~940Mbit/s. If I use one of the ports as server and the other as client, I always go through ...
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1answer
170 views

How to monitor bandwidth usage per process [closed]

I recently installed vnstat on my DigitalOcean Droplet (Ubuntu). After about a month I decided to check out the log and to my surprise saw "huge" amounts of bandwidth going in and out of the server. ...
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1answer
106 views

Is there any way to limit the bandwith of a computer without making changes to the router?

How can one limit the bandwidth of a whole PC, and not just a specific process. I’m gonna move into a new home, but I will only have around 1,800 kb/s internet speed. This is a bit a problem, because ...
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2answers
65 views

How Bandwidth allocation works in 802.11 Network using DCF for e.g

I'm studying how 802.11 dcf mode with CSMA/CA works but I got to a confusing point... since DCF only one user can transmit successfully to an AP (receiver) (considering ideal case when exposed ...
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2answers
5k views

Skype Bandwidth Usage

I am wondering if anyone can tell me the average bandwidth usage for a Skype to Skype call (PC to PC) per hour (voice only), as well as calls that would include screen sharing. I have tried searching ...
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294 views

How to calculate bandwidth usage for RDP

I'm looking to calculate the actual amount of data sent and received for RDP for a given session. Just trying to figure out, given a typical hour or day of usage, how much bandwidth I would use if I ...
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2answers
129 views

Why does the download speed goes over the ISP bandwidth speed?

I have a wireless connection of 256 Kbps from my ISP. The download speed obviously varies on servers I am downloading from. But it goes all upto 181 KBps from ubuntu server and even higher from ...
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1answer
921 views

Maximum Bandwidth through gigabit switch

This seems like a simple question, but I can't find a definitive answer for it. I have four devices connected to a Gigabit switch as in this diagram: Can I get the full GBit bandwidth from A-B ...
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39 views

How to download files with time-based bandwidth limitations?

I have huge files (15 Gb) to download from a provider which asks me to not download these files during buisness hours. I've tried using FlashGet, or Free Download Manager, but I can't schedule ...
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1answer
201 views

Bandwidth getting stolen by a user, NetCut safe option? Better option?

I am in a hostel there must be a user leeching hardcore from time to time. Late at night a group of americans came back, and the bad connection trouble seemed to stop after they went to their rooms. ...
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1answer
44 views

Automatic usage of Upload bandwidth. How to prevent this?

My network usage is tremendously increasing from the last couple of days. My upload bandwidth increases everyday. After turning on the computer in the morning and within the next one hour, upload ...
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71 views

Server bandwidth issues, sending packets to China

Can I solve this issue with IPtables? I have come here as a last ditch effort to figure out what is going on. About a year ago I had my Minecraft server running out of my basement for me and my ...
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33 views

Can I use perfmon to measure my non-local (internet) bandwidth total from my machine?

I am looking for a quick way to measure my laptop's internet usage as a running total (rather than a point-in-time data plot). Performance monitor seems to offer a lot of options, but I am not sure ...
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1answer
707 views

Bandwidth control for my home network

Goodday, I just wanna ask if how can i control the bandwidth of the wiFi users. I have two routers. First is the modem/wireless router (DHCP) (2in1) (KASDA brand) provided by my ISP, it has other ...
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1answer
95 views

Download speed vs SpeedTest results

I'm currently subscribed to 500M fiber package with Asus AC68U Router and Asus PCE AC68 dual band network card. I'm connected on the 5ghz band and pinged over 250 Mbps download speed results on ...
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1answer
58 views

Wireless Multicast transmission

I'm working on a high bandwidth application which uses multicast. Let's say there's 20 ip devices connected wireless to a router. One ip device sends a multicast packet to the multicast group. Will ...
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3answers
493 views

300Mbs on a wi-fi router are available for each connection? Or that bandwidth is shared among the devices?

So I have a Wi-fi router that operates with a 300Mbs capacity. What I want to know is: Do those 300Mbps are shared among all devices connected to the router? Or does each wireless connection to ...
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2answers
58 views

What is a general term to describe total units transferred?

I've been seeing the term "bandwidth" abused in recent years, especially by telecommunications companies. People refer to transfer caps as "bandwidth caps", but bandwidth describes a rate not a ...
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1answer
668 views

What's the theoretical latency of 802.11ac?

Inspired by this slide, I became curious to know the (theoretical) latency of the latest WiFi standard. However Google didn't help. This ppt's 8th slide, compares latency of 802.3 (3000 microsecs) ...
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2answers
212 views

Does downloading a Windows 10 preview update get an ISO or just delta updates, similar to Windows Update?

I'm not on a metered connection, so I want to know if Windows 10 TP is going to start downloading a 5gb ISO or just the updated files when I click the 'Download now' button on the Previews tab under ...
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1answer
3k views

limiting upload bandwidth in Mac OS X Yosemite (10.10)

I have ADSL internet, and when there is an application uploading to the Internet at full speed (e.g. Skype or Chrome during file uploads), the download bandwidth becomes very very slow. Meaning I ...
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16 views

Start task according to bandwith speed?

How I can start task according to my downloading speed "Bandwidth". Lets say I want to start .bat file if my downloading speed didn't exceed 50 KB/s for more than 50 seconds. What tools should I have. ...
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203 views

Will a 10 slot USB3 hub provide full bandwidth for 10 USB2 flash drives, and if not, where is the bottleneck?

I am wondering if a USB3 hub connected to a USB3 motherboard could sustain 10 USB2 flash drives being used simultaneously to transfer data at full bandwidth. Theoretically USB 2 speed is 60 MB/sec ...
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198 views

Bandwidth information from traceroute command

I was wondering: is it possible to calculate bandwidth information from a simple traceroute command? Maybe an approximation using the distance between the nodes could be possible. The reason I am ...
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1answer
345 views

DNS resolution fails while torrents are running

When I turn on torrents, I am unable to use the internet for anything else. This primarily affects my web browsing where the browser fails to resolve hosts. Once torrents are turned off, I am able to ...
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1answer
149 views

Linux RAM throughput statistic for a given PID

How do I find out how fast is a certain process accessing the DRAM? There are lots of ways to monitor the CPU usage, memory footprint etc etc, but is there a utility I can use to monitor the memory ...
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2answers
128 views

Why do the packets intended for other computers on a local network not saturate our bandwidth?

On a Unix or Linux computer we can run the iftop command and monitor the packets of all the other computers on our local network. Why does this not completely saturate the bandwidth of our connection? ...