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.).

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10 views

Keep showing old processes in nethogs

Nethogs stops showing idle processes after a while. How can I make it keep showing them? I want to have a complete history of processes for long time. Is there any alternative to nethogs?
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1answer
28 views

Capacity Planning - Servers / Equipment vs Bandwidth [on hold]

I am not a tech person, and I am researching a company as an investor. This company does live streaming / webcasting. Not surprisingly they have really high bandwidth costs, but I was surprised to ...
0
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0answers
6 views

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

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 ...
0
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1answer
35 views

AWS per connection download limit

I want to spawn a redis slave in AWS (Sydney), which needs ~20Mbit/s to catch up on the writes of the master located in germany. Problem: I get only 8Mbit/s (1MB/s). Tried bigger instance types ...
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2answers
90 views

Multilayer LACP

I have a network switch that is limited to 2x1Gb/s LACP teaming, however have a file server with a 4x1Gb/s network interface. What options do I have to aggregate all available bandwidth without ...
2
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0answers
31 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 ...
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0answers
31 views

Windows Server 2008 consuming a lot of bandwidth

My Windows Server 2008 has been consuming A LOT of bandwidth in the last days (990 GB). This is a development server so it should not consume more than 100mb aprox. We noticed this after the server ...
0
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1answer
49 views

Apache2 Mod CBAND what happens if the limit is reached?

I setup an Apache2 server with the mod_cband to limit download speed at 512kb/s, and I was wondering what happens if I reach the limit. For example, if my server connection is 100Mb/s, I would ...
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2answers
46 views

How much traffic does a Ubuntu server cause for updates? [closed]

Does anybody have some numbers on how much traffic/month a ubuntu server causes if automatic updates are enabled (just for fetching the apt sources and the packages)? I have a small box which is ...
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0answers
13 views

Sonicwall 250m bandwidth

We have an nsa 250m with the SonicOS Enhanced 5.9.0.2-107o version. Is there a way to manage bandwidth by group ? I'm already able to do this this by user with this method Firewalls => Access rules ...
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votes
1answer
43 views

Monitor bandwidth per directory [closed]

I have uploads directory and I would like to count the total downloads of files in that directory, in short, is it possible to monitor the consumed bandwidth per directory?
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0answers
72 views

Web server losing bandwidth for 6 hours a day

For the past week or so our CentOS server (that runs Apache and NGIX as a proxy) has been acting odd as its bandwidth output has been consistently dropping from around 10/11pm until 4am to around 1M ...
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3answers
85 views

What network performance is required for thin clients?

I am building a network with approx. 1000 thin clients. I intend to run them over VNC. What type of LAN bandwidth and latency are required? What type of hardware will provide that? If, instead of ...
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1answer
149 views

How Do I Limit Bandwidth For Connections On My Ubuntu VPS?

I have a VPS with Ubuntu 12.04 installed, with a 35Gb limit each month (any more than that used and I have to pay). I normally use it with Zpanel to host a Joomla website, and keep the mail ports ...
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votes
2answers
52 views

Huge Outgoing traffic on windwos azure [closed]

I have a vm on Windows Azure running centos6 as dev node, and have recently experiencing a huge increase in outgoing traffic. VM was stopped and after started by 1 day it shows 236.63 GB on outgoing ...
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0answers
34 views

Web Hosting Bandwidth

The company that hosts my web servers mentions a 2mb/s dedicated bandwidth with a burst of up to 5mb/s using the 95th percentile ( Burstable ) billing. To me that sounds slow but I know nothing about ...
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0answers
54 views

Reduce Bandwidth on a cisco router (Cisco 877)

PS:Sorry for my english i'm french so i'll try to write the best as I can. I looking since a few weeks now for a command to reduce the bandwidth on a cisco router. I done try a lot off command and ...
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0answers
104 views

Monitor traffic on ports with Cacti

This seems like a basic question, but i haven't found any solution yet. Recently I've installed Cacti for interface traffic monitoring. That works fine, but I would like to see these graphs for used ...
10
votes
1answer
492 views

FreeBSD link aggregation no faster than single link

We put a 4 port Intel I340-T4 NIC in a FreeBSD 9.3 server1 and configured it for link aggregation in LACP mode in an attempt to decrease the time it takes to mirror 8 to 16 TiB of data from a master ...
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votes
1answer
175 views

Extremely high bandwidth usage on Amazon EC2 instance

I have a m3.medium instance on Amazon EC2. Things are under development and my usual bandwidth usage is no more than 200 to 300 MB per day. I just noticed a spike in my EC2 bill and found out that I ...
10
votes
2answers
358 views

Counting bandwidth from a Docker container

I'm trying to figure out how to track bandwidth coming from a Docker container. Normally I use --uid-owner as mark to keep track of bandwidth usage for a given user. However, even when I run all the ...
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0answers
48 views

Accelerating OpenVPN using multiple connections

My ISP throttles single connection downloads, but if I use an accelerator like aria2c and open lets say, 20 connections, my download speed shoots through the roof. I have been able to saturate my ...
2
votes
2answers
795 views

Fortigate 100d 802.3ad bonding / Link aggregation

My network is as follows: 1 x Fortigate 100d with the two WAN ports connected to: Ethernet ISP with STATIC IP configured manually (20 Mbps symmetric) via ISP A Ethernet ISP with STATIC IP ...
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0answers
133 views

Brute force attack on my servers ports burning through bandwidth

Am having some form of brute force attack being done to my server and I have a screenshot of what's happening below. Remote Address 121.14.154.206 is somehow abusing all of my ports and burning ...
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1answer
40 views

Low Upload Bandwidth Issues

I'm fairly new to the networking world, so please bare with me. On my companies LAN, we are experiencing low upload bandwidth. Download bandwidth is fine. We have a 10 Mbps up and down through our ...
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1answer
87 views

Increase bandwidth per connection on a server

Requirement: I am load testing Rabbit MQ by generating a large number of requests/sec to the server (Server config: 8 core, 16GB). To achieve the above, I am generating load from a client machine at ...
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0answers
235 views

If I enable bandwidth control on my wifi router can I handle more connections reliably?

I have a small router (TP-Link TL-WR841N) bandwidth is 300 Mbps. With default settings it cannot handle more than 10 connections without choking and kicking people out. Theoretically, however, it can ...
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votes
3answers
55 views

How do I assess the capacity of my link for Active Directory needs?

I'm working for a company that has a head office and some remote sites. We have an Active Directory server in the head office and we now want all of the users in the remote sites to join and work on ...
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0answers
52 views

Group traffic shaping with traffic control?

I'm trying to limit the output bandwidth generated by an application with linux tc. This application sends me the source port of the request that I use has a filter to limit each user at a given ...
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1answer
81 views

Is it possible to limit output bandwidth between eth0 and lo?

I'm trying to limit the bandwidth between my eth0 output (nginx proxy) to my loopback inteface (apache) by filtering on destination port. Incoming Packet -> Eth0 -> 0.0.0.0:80 Nginx -> tc ...
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votes
3answers
116 views

Leased Line bandwidth distribution among users [closed]

Say that i purchase a 4 Mb leased line (Radio wave), and also i have around 50-75 users using the connection. What will the speed will each user get ? Will the 4MB be divided among all 75 users or ...
1
vote
1answer
79 views

Reduce outgoing bandwidth in ffmpeg

I have a server in Rackspace with some ffmpeg processes listening to audio streaming. Off course when listening to streamings the incoming network traffic is high, and this is ok. But I noticed that ...
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votes
1answer
67 views

Streaming audio/video in a publicly-hosted server increases bandwith usage [closed]

I have a website hosted in a public server (withoud any streaming content) ,using public hosting instead of private because its cheaper. But in public hosting their are limitations when compared to ...
1
vote
1answer
522 views

UDP bandwidth calculation based on packet size, request rate and latency [closed]

I need to estimate the bandwidth for a measurement application to be written that uses UDP. I have a good sense of the numbers but am not sure how to put them together. I checked a few throughput ...
0
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1answer
216 views

nginx - limiting bandwidth usage per server block

In Apache we have some great solutions for limiting the bandwidth usage per vhost, like mod_bandwidth. However, since I started using nginx, I couldn't find a way of limiting and monitoring the ...
5
votes
1answer
121 views

Method / Tools to analyze temporarily bandwith collapse

I've tested my server¹ with a python port of mechanize - multi-mechanize. I ran several pretty simple tests - but I always get a drop from 10mbits to some kb of upload bandwith. And I've no idea why. ...
0
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1answer
42 views

Do you need N times the bandwidth to send same data to N users? [closed]

Do you need N times the bandwidth to send same data to N users (for example when streaming live video to many users) or are current network protocols capable of cloning packets mid-route (or similar ...
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votes
2answers
345 views

Should Skype be reliable in a corporate environment?

I have been managing the IT function in a small software development company that has grown from 10 users to 70 users in 5 years. Most users in the company are office based, but some key users work ...
1
vote
1answer
107 views

Where is my bandwidth?

We've got a DSL line rated at 7Mbps. The best speed test results are little over 4Mbps. After replacing our modem, and spending hours on the phone with Verizon, they say that 4Mbps is within ...
2
votes
3answers
3k views

How to use iSCSI MPIO to increase bandwidth with XenServer?

I've a FreeNAS Server with four network interfaces. The iSCSI traffic goes through two of those interfaces, and each interface has one IP address in a different subnet. As example: igb0: ...
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1answer
79 views

Best way to optimize site speed for a large traffic website? [closed]

I'm currently managing a Website for a client of mine who gets about about 500-1000 visits minimum a day, and this includes Members uploading videos, photos, blog posts and other content. The site ...
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votes
1answer
136 views

How does HA proxy use bandwidth?

We're using HA proxy for load balancing web servers. How does bandwidth usage work for HA proxy? HA proxy is on a different network than the web servers. Does the bandwidth that ends up being used ...
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vote
0answers
128 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 ...
0
votes
1answer
117 views

Windows 2012 R2 RRAS VPN Bandwidth issue (worked fine with 2008 R2)

3 machines : VPN Server (VS) Random Server (RS) My Personnal Computer (PC) PC and VS on different networks VS and RS are on same network VS can connect the internet directly and has a bandwidth of ...
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0answers
50 views

View historical data per IP with PRTG packet sniffer

I have recently set up PRTG's packet sniffer sensor for bandwidth monitoring. I am able to pull up historical data in 15 minute increments and see who was the highest user but I would like to see ...
0
votes
2answers
46 views

How to automatically send email when process is using more than xxxMbit/s

I haven't found anything for that. How could I automatically send an email (via crontab) with the ID of the process, the user & finally what's the name of the process for example when this process ...
0
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0answers
82 views

Trace Route, Slow Pings, timeouts on after server restore

I am getting bad ping times on my server, especially for large data requests. The stored procedure on the server runs at 1 second, while calling it through my web applicaiton takes 23+ seconds. This ...
1
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1answer
2k views

fortigate traffic packets not logged

Ciao, we use Fortigate device since years and now we need to check bandwidth usage per protocol and this is is not possible. We made this test: 1) all policy Logging Options - Log all Sessions 2) ...
1
vote
1answer
67 views

PPTPD VPN only forward DNS requests?

Is there any possible way of configuring a PPTPD VPN server to only forward DNS requests on so that I can save bandwidth? Thanks, Francis
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votes
1answer
73 views

why does a multicast server endlessly transmitting packets even no client require [closed]

i used to setup a multicast server using windows server 2003 OS, i can see a lot of packets transimitted from the server once it was started. Does it make sense when no one is requiring the multicast ...