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Questions tagged [bandwidth]

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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How to monitor outgoing bandwidth by file via ssh? (Ubuntu) [on hold]

I need to see a list of the top files consuming the most bandwidth on the server running NGINX as reverse proxy for Apache. I've been looking but i can't find the right tool. What can i use?
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0answers
12 views

Getting close to hosting provider's monthly bandwidth limit - alternatives? [on hold]

The maximum plan I can get for bandwidth limit is 1500GB/month. Some providers say they offer unlimited, but when I called them, none are willing to actually offer let's say 3000GB/month. Right now I ...
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1answer
47 views

Ban IP addresses based on bandwidth usage on apache/linux

Is it possible to throttle or ban IP address based on how much the host is using bandwidth of my webserver? In ideal situation I would like to create rules like: if IP uses bandwidth over 1000 MB ...
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0answers
29 views

Should i use SFQ qdisc as leaf for every HTB class?

I want to shape the bandwidth such that every user at the leaves can use the dedicated bandwidth in a round rubin approach and the dedicated bandwidth spin between users in that class. Should i create ...
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2answers
49 views

Basic QoS bandwidth for all devices/clients

I have an IP network that has about 500+ clients on the network at any given time. The network uses a Cisco 1941 router as it's gateway, and has 5 different subnets. The network also has 2 DCs, a ...
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2answers
447 views

How do increase data transfer rate between my VMs

I saw lots of article,but didn't answer my question. My server use VMware vSphere Hypervisor. There are 20 virtual machines in my server. VM operating system : centos7 I already change my vSwitch ...
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1answer
65 views

Bandwidth to hosts abroad [duplicate]

I have a server with 1 Gbps uplink. Testing gives me a download/upload speed of approx 600 Mbps to servers nearby in Europe, and 100 Mbps to servers in US. I want to host a server and I need to know ...
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0answers
18 views

WDS boot taking a long time over site-to-site VPN connection

We have three sites and a new server colocation facility that we are in the process of bringing online. We have several WDS servers at each site. We are moving servers from the smallest site to the ...
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0answers
13 views

How much business bandwidth is enough? [duplicate]

Typical business use for most cases where the users are getting email, moderate attachment sizes and browsing personal sites occasionally. 100 users with this profile. VoIP Phone 100 users. Other ...
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0answers
24 views

How to split a website's traffic into discrete chunks of bandwidth?

I'm running a website, which has several separate services available for users, like file storage, some sort of current financial data analysis download, and, of course, there's the website itself. ...
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1answer
40 views

How can I limit bandwidth on a public network? [closed]

Our workplace has a public network where people often connect with their personal laptops. A sizeable number of users are torrenting which is killing bandwidth for the rest of the network's users. At ...
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0answers
51 views

Nginx dynamically limit bandwidth per IP

I'm trying to set up a Nginx web server for serving file downloads. Let's say that my server has the capability to upload at maximum 1Gbps, is there any way I could make Nginx spread the bandwidth ...
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1answer
171 views

Fixing 70% transfer speed slowdown over VPN compared as compared to SSH? (Tested OpenVPN, IPSec/L2TP, OpenSSH, SoftEther)

I'm currently configuring a site-to-site VPN between two VPSes that requires both outgoing and incoming connections. It will be used by a high bandwidth application so I require the maximum amount of ...
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0answers
25 views

Reserving bandwidth in order to reduze packet loss rate

Consider a network, in which one Client is sending UDP packets to a remote server and another Client is uploading a file via FTP to a different remote server. These packets are forwarded to the same ...
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1answer
28 views

How to determine if a link is appropriately dimensioned

Consider the following network: Access Point <--> Ethernet (100 Mbit/s) <--> Router 1 Router 1 <--> 50 Mbit/s Point to Point <--> Router 2 Router 2 <--> ...
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1answer
152 views

Is it possible to use powerline adapters behind UPS's? [closed]

Currently i have my router connected in the 1st floor (with some switches), which is also connected with a 1200Mbps (real bandwith is about 600Mbps) powerline adapter. Another powerline adapter is in ...
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1answer
59 views

openvpn optimizations for Low bandwidth (250mb a month)

I am using openwrt lede with a lte stick 250-300mb a month depending on the unit so preferably hitting 250 or lower would be better for the entire system these are the clients the server doesn't have ...
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1answer
24 views

Monitoring - Calculate bandwidth usage of images

Is there a way to find out the bandwidth usage of a certain mime-type on Windows Server? Eg. How much GB of images is my server serving each month?
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1answer
33 views

Limiting network activity on a server

I have a network with couple of servers running Windows Server 2008 R2. I am being ask to find out a way to limit the network activity per actions. So far i couldn't find if it's even of the realm of ...
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1answer
59 views

Bandwidth: How many nodes can a 15Mbps connection serve? [duplicate]

I have looked for an answer but can't seem to find what I'm looking for so thought I'd ask here. We have decided to get a connection from a local ISP offering an upload speed of 15Mbps to serve a ...
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2answers
114 views

What bandwidth values should I set?

Edit 1: I gave the used bandwidth in DigitalOcean and CloudFlare in details. We could assume that other factors (like CPU, memory) remain the same. My question is about to ask the interpretation of ...
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1answer
140 views

Squid bandwidth control with both source and destination

let's say I have three subnets: 192.168.0.0/24 with 100 mbps uplink 192.168.1.0/24 with 100 mbps uplink 192.168.2.0/24 with 500 mbps unlink I need to limit the bandwith against example.com so they ...
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1answer
334 views

memory bandwidth bottle neck

I have a python pandas program. When I run on AWS Ec2 with 8 cores. I got 100% CPU utilization and program finished in 8 minutes. Then if I go 16 cores, I can only get 50% CPU utilization and program ...
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0answers
39 views

AWS, Bandwidth and SSD

I am using AWS T2.large instance for my rails application which has both API and CMS. I would like to change the instance type as it is consuming more memory. so which instance is suitable for my ...
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0answers
49 views

Mitigate rsync's burstiness

We use rsync as backup on a NFS share we have on our VPN network. The ISP's modem is awful and it stops responding when we ask too much upload bandwidth to it. We have 150Mbps down / 20 Mbps up ...
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0answers
203 views

Idle bandwidth usage of SSH connection

What is the idle bandwidth usage of a SSH connection? For example, if I establish a SSH tunnel (i.e. autossh) to a machine via a metered connection, how much bandwidth can I expect to be used on an ...
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0answers
50 views

How to calculate approximate wifi-bandwith when repeater is used?

When reading about repeater usage (without crossband-repeating) it is said that the bandwith is at minimum reduced by 50% because the repeater has to repeat every bit of communication. In principle i ...
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1answer
91 views

Calculate network/ethernet bandwidth usage rate in every 15 seconds [closed]

I would like to create a bash script for my centos server to monitor the bandwidth usage. Like whether eth0 or eth1 is UP, it should monitor the bandwidth rate it sends and receives in every 15 ...
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1answer
169 views

Ability to view SonicWall WAN bandwidth in real time?

We have a SuperMassive 9200 and a 100Mbit circuit, we have PRTG monitoring the connection and will error when it hits 90%, we have times where that happens and its 100% or higher. We have not found a ...
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1answer
112 views

ieprf vs iperf3 metrics does not match

I am not a network expert but I was measuring the network between to physical hosts using iperf and I got different results depending of the version I was using. Server configuration: CPU: ...
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2answers
134 views

Motherboard with 4x1GbE, can I get 4Gbit throughput? [closed]

I'm planning a home NAS/Plex server using Ubuntu/Debian and I've seen this board (Supermicro X11SSH-LN4F-O) with 4 NICs. My home network is a mix of Wifi and LAN. Lan is 1GbE, Wifi is a Linksys ...
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2answers
533 views

Limit rsync bandwidth nfs copy

We're currently forced to limit the backup bandwidth to a nfs disk outside our network (thru VPN) because it fills up the modem cache and we are forced to reboot it to regain connectivity. 0 22 * * *...
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2answers
244 views

Maximum Internet Bandwidth per User [closed]

My question pertains to network bandwidth outside our local LAN. We have a 10Mbps internet connection provided by our ISP. We need to setup a wireless connection and the plan is to add a 54Mbps ...
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1answer
68 views

Why bandwidth between two nodes is slow?

I measure the bandwidth between my server, which is hosted in a data center, and different nodes, mostly as VPS, with iperf. I am finding out that the bandwidth between some VPS and my server is ...
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2answers
207 views

How to measure bandwidth per cpu utilization [closed]

I'm trying to measure efficiency of the networking system and looking for a tool that either allows to limit max bandwidth for each test or, ideally, limit cpu utilization. At the end I need to have ...
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1answer
102 views

Total Bandwidth Usage tracking in VMWare

In VMWare vSphere, how can I set and track the monthly bandwidth usage of each guest? I need to reduce the network speed when bandwidth usage exceeds 90% or so. What are my options?
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0answers
83 views

Understanding clients-server max-concurrent-connections and TIME_WAIT state

I know there are a lot of questions and also answers around the TIME_WAIT state of a socket connection, but somehow non of them (or maybe from an experts perspective all of them) help me to understand ...
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0answers
106 views

What is best practice design for internal traffic between microservices?

I have two PHP written microservices A & B. Endpoints are a.example.com and b.example.com. Both services need to be public accessible. In addition, service B makes a lot of curl requests to a....
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1answer
276 views

How to improve bandwidth performance for a vm [closed]

I have been told to add additional nics to the VM to improve bandwidth performance. Once they are added what is the best way to team them together for best performance? I tried the Microsoft bridge ...
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0answers
40 views

Total internet data usage in a small network

We have got a small network with 20-30 Windows systems that is connected through a Fortinet Fortigate Firewall with an LTE Internet Connection that has the speed of 20 Mbps. Basically, my question ...
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1answer
41 views

Grouping multiple internet lines [closed]

I have a multiple internet lines each with a different speed. I want to Grouping them to be like a on line with all of them speed. I hear about loadbalancer, it could be possible?
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10answers
7k views

How can I buy end-user bandwidth for my customers? [closed]

I sell a product to customers, and as part of this product I have a website where customers can upload data for processing. The data is of considerable size (gigabytes). I am looking to buy extra ...
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0answers
66 views

95%-ile calculations : Can I use “unused bandwidth” for external backups?

My datacenter is charging me Mbits with 95 percentile calculations. I usually pay for 90mbits every month because of traffic spikes that I have every morning. Those traffic spikes are somewhere ...
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1answer
220 views

What is limiting bandwidth using rsync

we are running a 10Gbit server. Testing whith iperf works perfect: [ 3] 0.0-10.0 sec 10.6 GBytes 9.15 Gbits/sec But when using rsync (with ssh on another port: rsync -Pe 'ssh -p xxx') the ...
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0answers
47 views

Testing CloudFront in Europe

I'm trying to set up CloudFront so that European users can download from my S3 bucket quickly. I've already set it up and am now testing. To test, I have created a Windows EC2 instance and based it ...
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1answer
682 views

Proxmox Virtual Machine Bandwidth monitoring

I have been trying to find some tool to allow me to monitor and get stats from virtual machine network usage. I have a proxmox host with several virtual machines, and I would like to have some sort ...
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2answers
565 views

How to determine what's causing high bandwidth usage on server

I have a MySQL database server running on a VPS. The server is connected to a web server via a private network interface, and has no public services except SSH and a PHPMyAdmin installation. Some ...
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1answer
61 views

How to check if ISP has enough bandwidth for video streaming? [closed]

I have 20Mbps ethernet connection. I connect through dhcp, I have static address on the LAN. I know that 20Mbps should be enough to stream video from sites like youtube: 3 Mbps – Standard Definition ...
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0answers
328 views

iperf3 Windows bandwidth is much lower than linux

I have encountered a very strange issue. I have 2 servers, one runs redhat Linux server 7 64Bit, ahother runs Windows server 2012 64Bit. Both server hardware spec is exactly same: Xeon 2.6Ghz CPU x 2,...
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2answers
94 views

Server bandwidth is going crazy, after reboot all ok

I have a streaming server with 10gbps card on it. I'm using ~2.5gbps. My server is running perfect for 8-9 hours / day, and after that is going crazy, and everyone is freezing. At exactly the same ...