In computer networking and computer science, bandwidth, network bandwidth, data bandwidth, or digital bandwidth is a measure of available or consumed data communication resources expressed in bits/second or multiples of it (kilobits/s, megabits/s etc.).

learn more… | top users | synonyms

2
votes
2answers
605 views

limiting bandwith per ip

I have a server with 256 ip addresses for our internal office use. Each ip is given to our employees via squid proxy. They connect to proxy they browse etc. Problem is that some must do tedious tasks ...
2
votes
3answers
4k views

Linux - Limit max bandwidth usage per IP

I have been experiencing DDoS attacks on my web server, with some IPs using more than 50 Mbit/s. Now if I would like to limit the max bandwidth usage for each unique IP to, lets say, 1 Mbit/s, what ...
2
votes
2answers
724 views

A lot of bandwidth for a lower price than AWS? [closed]

I'm going to be serving up a lot of audio content and am looking for something cheaper than Amazon's $0.15/GB. I don't really need a cdn since latency, speed and so on don't matter too much. Is there ...
2
votes
1answer
381 views

How do I monitor bandwidth used by rails apps?

I run a server that hosts several small rails apps, and I want to track how much bandwidth each is using. They are all running on Apache 2.2 and Passenger 3. I used mod_cband for static sites, but ...
2
votes
2answers
1k views

Measure Total Bandwidth for Billing

I am setting up a new network which customers will host their applications on. It needs to be able to scale out to a few hundred servers and each server will have several VMs on it. Right now in my ...
2
votes
2answers
789 views

Whats the best application to monitor bandwidth usage on iis6?

Our hosting company is currently stinging us for bandwidth usage on our web servers. At the moment, we have no idea where the bandwidth is going! Does anyone have any good recommendations of programs ...
2
votes
3answers
2k views

SNMP Bandwidth Monitoring - Billion Router

I have several sites around the country, all sites are using the Billiion BiPAC 7402GX router. I need to setup bandwidth monitoring tools to allow me to see the sites visitied, amount of bandwith up ...
2
votes
2answers
1k views

Know a way to parse Speed Test results?

I like SpeedTest.net, but what I'd really like to do is put a graph in cacti, run a speed test every half-hour, and graph the results (maybe running it three times each time and averaging it). I ...
2
votes
0answers
31 views

Calculation of Xeon server memory bandwidth

I am looking at a dual socket server based on the Intel(R) Xeon(R) CPU E5-2640 v3 @ 2.60GHz The configuration looks like this. 4 memory channels per socket DIMMs are 8x32 GB DDR4 2133/1866 modules ...
2
votes
1answer
78 views

What's the fastest way of getting data into an AWS Lambda?

I have something I'll call a "microservice" running on AWS Lambda (using node.js). Basically it serves up condensed summaries drawn from a few hundred megabytes of binary blob. There are a lot of ...
2
votes
3answers
257 views

LSI 9260-8i limited to max 200 MB/s (independently from the drives)

LSI MegaRAID 9260-8i controller is limited to max 200 MB/s transfer rates. The server is a HP DL180 G6, with CentOS 7 (64 bits) and we are testing 4TB SAS drives (Model: WD4001FYYG). The controller is ...
2
votes
0answers
196 views

How to limit bandwidth from inside OpenVZ container without tc?

As the title says I would like to know if it is possible to limit bandwidth (download and upload) of OpenVZ container (from inside it) without use of tc or any additional kernel driver (VPS provider ...
2
votes
0answers
368 views

Mac OS X > pfctl > How to limit Bandwidth for a specific port?

I need to limit the Bandwidth of our Apache Server (which runs on port 80 by default). It was easy with ipfw as follows: sudo ipfw pipe 1 config bw 100Kbytes/s sudo ipfw add 1 pipe 1 src-port 80 ...
2
votes
0answers
201 views

How to monitor the bandwidth per each iptables masqueraded device [closed]

Question: Which tool could I use to monitor and break-down in real-time which bandwidth is routed by iptables to which computers? Context: I have a linux box masquerading about 15 devices to ...
2
votes
0answers
361 views

HTB equal bandwith sharing per ip in one class

In my tc configuration (shown below) in one class all bandwidth is shared among connections equally, but I want to share bandwidth among all IP addresses equally. Now: 192.168.0.2 - 38KB/s 192.168.0....
2
votes
1answer
687 views

Openvpn limit bandwidth

I would like to ask you a question concerning openvpn and the possibility to increase the bandwidth in case I want to transfer files. I have an openvpn server via which I connect to my data center. ...
2
votes
1answer
516 views

Measure Upload Speed between a client and our server

We host a SAAS application specially customized for multiple clients. For one customer in particular -- they are reporting sporadic performance issues from various locations on their network, in ...
2
votes
0answers
222 views

how to measure IP bandwidth in pass through mode in linux?

I want to measure the IP bandwidth in pass through mode. Please find the attached picture for configuration and my question also. If there is no solution with OpenWRT, I need any alternative ...
2
votes
1answer
638 views

Gateway Modem loses ability to DNS lookup intermittently, often under heavy load

We're using a Bell 2Wire Gateway modem/router as our only hub (with some switches attached). Intermittently, but frequently when a large download is initiated, all computers on our LAN lose the ...
2
votes
2answers
132 views

File transfer - Bandwidth flickering for no reason

We are experiencing file transfer issues. I try to troubleshoot this problem but it is really hard. Here is a screenshot I took while transferring a file from my workstation to another server. The ...
2
votes
1answer
1k views

SonicWall TZ 200 Network bandwidth or usage monitoring

I was using Pfsense for a while and recently replaced it with SonicWall TZ200. What I miss now is a Bandwidth or usage monitoring like BandwidthD to monitor IP wise traffic. How can I do this ...
2
votes
1answer
2k views

bridge traffic limiting via tc

I have a Linux machine running as a bridge simulating various network conditions. I use tc for this. Introducing delays or packet loss is quite simple but I got into trouble trying to configure ...
1
vote
5answers
5k views

NIC bonding with two uplinks

Is bonding the preferred way of implementing ISP redundancy? In the texts I've seen, bond device has a netmask, gateway of it's own. How can this be obtained if there are two different gateways from ...
1
vote
2answers
1k views

When reading SSD drive specs, what's the difference between MB/s and IOPS?

I'm trying to find a suitable SSD drive for my database server (postgres on debian 7 amd-64), and I find that for some SSD drives, while read speed is specified in MB/s, write speed is in IOPS. To ...
1
vote
5answers
951 views

Reading NIC bandwidth usage instantly

I want to create a script that runs on a linux server, that script should read bandwidth usage of NICs installed on other servers and then store them in memcached. So I need a command that reads ...
1
vote
6answers
297 views

Bandwidth out of control, where to go next

I was wondering if someone could give me a bit of advice. I have just released a site live and it has maxed my bandwidth / space more than what i predicted. Im from Australia so space and bandwidth ...
1
vote
3answers
1k views

Find whats using all my servers bandwidth

TLDR: how can I dig deeper into my Mac mini OSX server to determine what processes are consuming so much bandwidth, or where all the inbound traffic is coming from? Resource caching is on, all ...
1
vote
5answers
2k views

Converting MBps to k/s

We're diagnosing a speed problem between our shenzhen office and our asset management server. It seems stupid, but I need to get the data in the same format. How do i convert the MBps that isp's ...
1
vote
2answers
787 views

Simple network bandwidth usage tray icon

When you use Process Explorer and minimize to tray, The icon turn itself in a graph of CPU utilization. I want to see that graph for network usage, specifically for internet usage. Example, I can ...
1
vote
1answer
400 views

What does it mean - to get billed to the 95th percentile at $x.xx per meg?

I got a quote from a colo, saying "I could do 3U, the power and 20 megs burstable to 100 for $250 a month with each additional meg billed to the 95th percentile at 6.50 per meg..so you would ...
1
vote
6answers
840 views

Hardware bandwidth limiter

Really not sure if this is the place to be asking this, but here goes.. Our company has grown exponentially in the last year. As such, our internet connection needs some serious managing and limiting ...
1
vote
5answers
3k views

minimum required bandwidth for remote database server

I want to build a small warehousing application for my company. We have a central warehouse which distributes to 8 sales points across the country. They insist on an in-house solution. I am thinking ...
1
vote
9answers
2k views

Need solutions in sharing a 3Mb/768Kbps DSL line to 60+ users and faster bandwidth

Two parts. Part 1: We currently have 2 DSL Lines with 3Mb/768Kbps speeds load balanced for 60+ users. Accessing the Internet is borderline unusable. The simple solution would be to get a faster DSL ...
1
vote
5answers
1k views

Slow internet bandwidth on Network

I know this looks like some of the other questions but they don't seem to have been answered as fully as I hoped. On our network we have a bunch of PC's that are connected to the internet. Now for ...
1
vote
4answers
10k views

How can I limit a users bandwidth in Windows Server 2008 R2 [closed]

We have a user that likes to download movies with torrents in our office and it just kills the overall network performance. Unfortunately we need this user and don't want to confront him directly ...
1
vote
1answer
692 views

Server Hacked + Huge Bandwidth Usage Spike [duplicate]

Possible Duplicate: My server's been hacked EMERGENCY I run a couple of sites on Ubuntu via Rackspace Cloud Server. My site typically uses about 3 GB of outbound bandwidth a day. Today, I ...
1
vote
5answers
1k views

Monitor bandwidth over time, excluding certain networks?

I'd like to monitor bandwidth usage of my Linux servers, but there's a catch: traffic between my two servers is not counted against me, only traffic to the internet at large. However, my servers have ...
1
vote
2answers
87 views

Track what is causing AWS RDS to use insanely high bandwidth

We are having a high traffic (100K hit/day) Drupal news website hosted on AWS. Its behind cloudflare & 2 Load Balanced Varnish servers. For some reason the bandwidth usage is very high for RDS. ...
1
vote
3answers
7k views

Any freebsd/PfSense realtime bandwidth monitoring tool?

i need to know if there is any Tool (specifically for FreeBSD) , through which i can get the Realtime network traffic usage of any Host/IP , and which should also run on Multiple interfaces as well? i ...
1
vote
1answer
138 views

Difference between peer network levels?

What are the differences between the network peer levels? I've seen peer1 2 and 3 tossed around the web and wondered what the differences were. Thanks!
1
vote
4answers
219 views

Determine bandwidth issues for circuit not under our control

Our company is hosting a website out of our office, it hosts the site, some downloads, and a ton of training videos. The server itself is a Poweredge1900, running Web Server 2008 64bit, Dual Quad ...
1
vote
5answers
3k views

Increasing bandwidth with multiple NICs

If I have two NICs in my system and both are connected to different ISP with different IP addresses, can I distribute my network traffic on them to increase my Bandwidth. I have already looked at ...
1
vote
4answers
158 views

How to determine AWS EC2 network performance?

I am using an AWS EC2 Ubuntu instance that was set up and configured by someone else (i.e. I do not have access to the management console). This instance is primarily used to download files and sync ...
1
vote
1answer
644 views

Bandwidth Usage: ActiveSync vs IMAP/CalDAV/CardDAV

I have been trying to find bandwidth usage information how the technologies compare. I understand that ActiveSync is instant, and new changes get "pushed" to subscribers. But IMAP/CalDAV/CardDAV is ...
1
vote
1answer
1k views

Random gigabit bandwidth with my Samba fileserver

I own a personnal Fileserver, build on an AMD X2 platform, with an intel gigabit CT network adapter, running debian 6.0. I've built a raid5 (2To x 3), shared by samba 3.5.6 From my desktop computer (...
1
vote
4answers
6k views

How can I calculate the 95-percentile bandwidth usage of a network device?

My provider is billing my bandwidth using the 95-percentile method. I know what it is in principle (take measurements, throw the top 5% away and use the remaining highest as result). The question ...
1
vote
1answer
934 views

Preventing Amazon S3 Bandwidth Stealing?

I have a Image Hosting Site that is using Amazon S3 as a main source for bandwith and storage. I have a few option here to prevent other sources from stealing my bandwith, but I am hoping there are ...
1
vote
1answer
199 views

Guaranteed international bandwidth solution?

How plausible is it to transfer large amounts of data consistently via the network? For example, is there a way to guarantee a minimum upload speed of 8Mb/sec from various international sites (Hong ...
1
vote
3answers
725 views

Calculating bandwidth math

I think I'm having a pretty fundamental problem in calculating bandwidth math. I work in streaming video and I often have clients asking me the famous question: "How many streams can I push at once?"...
1
vote
2answers
795 views

Is there an application to monitor bandwidth usage broken out to the application level for Linux (Ubuntu)?

I'm currently running Ubuntu on several machines and I need to track bandwidth usage per application. Is there a pre-built package or system that will track bandwidth usage and report on that usage ...