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.).
-2
votes
0answers
22 views
How do VPN services manage/afford bandwidth? [closed]
There are a bunch of VPN providers where a user can subscribe for a relatively low cost and get unlimited data transfer (Hide My Ass costs about $12 for their Pro account, for instance). I understand ...
0
votes
0answers
12 views
Control Usage Of bandwidth for each site
The scenario is as follow.
Let's take an example I have one domain called abc.com.I have purchased this domain.Now I am providing facility to the users to create their sites on this domain.So suppose ...
1
vote
2answers
49 views
What determines the maximum throughput of a Cisco router?
I'm looking at Cisco's documentation on the issue http://www.cisco.com/web/partners/downloads/765/tools/quickreference/routerperformance.pdf and I'm having a hard time getting the numbers to add up.
...
0
votes
0answers
17 views
How can the amount of bandwidth needed be calculated knowing the number of users and the type of applications they will use? [duplicate]
Looking to calculate the amount of needed bandwidth for about 400-500 users connecting to wifi to receive a podcast or use facebook and twitter.
4
votes
1answer
66 views
Limit incoming and outgoing bandwidth and latency in linux
I realise many similar questions have already been asked, but so far I've yet to find a solution to my problem.
I have a virtual linux server (running Debian Squeeze) that I use for testing of ...
0
votes
2answers
40 views
Dynamic throttling of bandwidth
I am planning on setting up streaming server.
Streaming is done kind of like YT does it; there will be a large number of audio content and each user can listen to it right on the website. In order ...
15
votes
3answers
692 views
Connecting two desktop switches with more than one cable?
I was hoping to find a way to increase bandwidth between two desktop switches I have, and I wondered if connecting them with two cables (or perhaps three) instead of just one might increase ...
0
votes
0answers
13 views
How to performance QoS on each single host in LAN based on IP
I'm wondering if there's a way/software I can enable bandwidth control on both inbound/outbound LAN traffic between each connected host and the router?
Currently I have a CentOS box running as a ...
0
votes
0answers
21 views
Low throughput on Vmware workstation virtual machines
I have two RHEL 6.2 virtual machines with core i7 processor. My host is also Dell core i7 laptop. I have connected these two VMs with virtual network editor. I am creating a VPN tunnel across my two ...
-1
votes
0answers
28 views
How to do QoS for each individual based on IP [closed]
I'm wondering if there's a way/software I can enable bandwidth control on both inbound/outbound LAN traffic between each connected host and the router?
Currently I have a CentOS box running as a ...
2
votes
1answer
51 views
Does 404 errors eat the server bandwidth?
I am facing a strange issue where one of our servers (used for internal purpose) hosted by Rackspace uses huge amount of bandwidth (but our actual users are using the server rarely).
FYI, the said ...
0
votes
0answers
25 views
Monitoring bandwidth on multiple hosts with no control of a router
I'm looking for ways to monitor bandwidth usage for some Linux servers (and a couple of Mac/Windows servers, but if I can only do the Linux servers that will be OK).
I do not control the router that ...
0
votes
1answer
41 views
Is there a command to check the network bandwidth of a server? (linux)
I am trying to compare different cloud server providers and one thing I am interested is the network bandwidth like 1Gb/s. Many vendors are not explicit in this respect.
Is there a way in Centos to ...
0
votes
0answers
83 views
TC Bandwidth Shaping for all clients
I am running a video site and want to shape the download speed of all clients.
How can I apply my tc class to all the clients by ip, i.e. every user has a download speed of 128kbit/s, no matter how ...
-3
votes
2answers
70 views
What software to use to generate bandwidth graphs in real time? [closed]
What sofware could I use to monitor my server's bandwidth in realtime, or at least, update every x minutes.
My server (dell r620) is connected to a routerboard Mikrotik rb1200.
But, as my router is ...
0
votes
1answer
59 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 ...
0
votes
1answer
83 views
Can FTP bandwidth usage result in dropped SSH connection?
It seems highly implausible, even ridiculous, to me.
I login by SSH to the CentOS server. I FTP to another server and begin a large file transfer out (uploading to other server).
After some time ...
0
votes
0answers
49 views
I need to be able to “sniff” wich IP used the bandwidth [closed]
In a company of 15 computers, mac and PC, one or more computer take all the "web" juice. So then, no one can access there web pages and do simples thing like browse and email. So i need a managed ...
-2
votes
1answer
42 views
Backupchain bandwidth calculation [duplicate]
we have 7 servers being backed up right now using backup chain locally for about a year now. I have tried the FTP backup on one of our financial number crunch VMs to move it offsite to our other ...
1
vote
1answer
87 views
Active Directory Replication Bandwidth Consumption
There are lots of articles out there describing how to architect your replication toplogy, and all the reasons why, and they all boil down to conserving bandwidth, and achieving a convergence time ...
0
votes
1answer
95 views
LAN bandwidth in Linux is low
everyone, I connect two PCs both with 1000Mbps NIC. One(A) of them runs Fedora 8 while another(B) runs Windows7. I test bandwidth between them with Ixchariot, it shows about 10Mbps. If A and B both ...
0
votes
0answers
62 views
limit bandwidth for each IP
I have a basic question. I use Frontpage to manage my website and I assume it uses HTML coding.
I recently experienced a huge traffic coming to my website from few (say less than 10) IPs and shut ...
0
votes
1answer
42 views
Lots of unaccountable bandwidth use in the past 24 hours
I have an apache ubuntu server which does not use much bandwidth, on a 24 hour basis I would probably have around 200mb of incoming data, for some strange reason I have had 8gb of incoming data in the ...
-3
votes
2answers
78 views
How much data can be sent and received at the same time on a T-3?
A T3 is rated for 45Mbs.
What is the expected run time upload and download speed of a T3 assuming both are happening at the same time?
0
votes
1answer
109 views
100 Mb/s port limit reached or something else?
I have a dedicated server with a 100 Mbps port. A few times a week, there comes a time (usually in the evening hours) when there is an extremely high bandwidth usage, by far more than usual.
I am on ...
1
vote
1answer
126 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
565 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
4answers
258 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 ...
3
votes
2answers
229 views
Monitor Internet bandwidth by IP in a LAN environment?
I am new to networking so pardon if this is a stupid question.
I want to see how my users use the internet bandwidth. I have around 50 Users in the network and I am using a checkpoint edge series ...
1
vote
2answers
82 views
How can I report bandwidth usage over x days, broken down by port and protocol?
I need to generate reports showing bandwidth usage broken down by port and protocol, based on all data sent/received over the last x days, in a fairly simple and secure way.
Storing full traffic ...
0
votes
0answers
11 views
Estimating Bandwidth/User for OpenStreetMaps Server [duplicate]
Possible Duplicate:
Can you help me with my capacity planning?
We are looking to roll our own OSM server, and are currently trying to lay down some basic server requirements in terms of ...
2
votes
1answer
66 views
Is there an effective way to monitor the load on each switch?
We have about 200 IP phones in our building and I realize we got more complaint about the phone quality after we switched our internet from 50Mbps to 200Mbps Up/Down.
I know there's a possibility ...
1
vote
2answers
278 views
How can I give a running process priority for bandwidth usage on Windows?
I found myself accidentally starting two large uploads, and since they are single BLOBs, I cannot easily stop/start them, potentially loosing much time. However, I prefer one of those processes to get ...
2
votes
2answers
138 views
Determine what machine/device is consuming bandwidth
I sometimes help a small office with a few issues. About two months ago, they were complaining of poor internet performance. Long story short, I found one person running Carbonite on a Mac that was ...
0
votes
1answer
417 views
openvpn TCP/UDP slow SSH/SMB performance
I have question about strange behavior of my openVPN configuration on Debian lenny. I have 2 server configs (one proto tcp-server based and one proto udp based). ISP bandwidth is 7Mbit/7Mbit.
When I ...
-3
votes
2answers
195 views
Would a VPN allow me to get around the monthly data cap set by my ISP? [closed]
My total data allowed without being charged extra is 50gb during 8am-12am and unlimited overnight from 12am-8am. I have to watch how much HD streaming I do and mass downloading because of this. Thanks ...
0
votes
0answers
96 views
Windows Server 2008 - how do I increase http bit rate? (IIS, 100mbps port) I only get 900kBps rate
IIS, quad core, 2gb ram, 100mbs port. (It's not a live site yet, so there's no bandwidth use.)
If I download the same file at the same time I get another 900kBps. I'd like to know if there's a way to ...
5
votes
2answers
2k views
Bandwidth limits for Amazon EC2
I have a micro instance on Amazon EC2 cloud.
Also the instance is small and it has vary low CPU and EAM usage but it
generates a lot of content, so it can be considered like a web server
serving ...
1
vote
2answers
295 views
Monitor remote Ubuntu server's bandwidth usage using Nagios?
I recently setup Nagios for the first time and I love it so far. Figuring out how to better organize all those config files took a while, but once I had a better understanding of everything I'm really ...
0
votes
1answer
147 views
How to mark outbound FTP traffic with iptables?
i have a user called "testuser" in my debian system and i want to mark the FTP traffic going from testuser's account
how can i do that?
i use following commands to mark all the outgoing traffic for ...
2
votes
1answer
590 views
how to limit upload bandwidth per user in linux?
Can anyone provide the tc command to limit upload bandwidth per user in Debian Lenny?
I found that to mark packets per user with iptables I can use the following command
iptables -t mangle -A OUTPUT ...
3
votes
2answers
345 views
Limiting bandwidth on internal interface on Linux gateway
I am responsible for a Linux-based (it runs Debian) branch office router that takes a single high-speed Internet connection (eth2) and turns it into about 20 internal networks, each with a seperate ...
-1
votes
1answer
311 views
How to calculate bandwidth limits per user on WiFi network
A typical 802.11g access point can provide around 25 Mbps of bandwidth. How is the bandwidth shared among the users?
Furthermore, how many users can be served by a single access point using 802.11g ...
0
votes
1answer
134 views
Why does nginx reverse proxy incoming bandwidth increase and surpass outgoing by far when proxy_buffering is enabled?
This is my current configuraiton...
proxy_buffering on;
proxy_buffer_size 32k;
proxy_buffers 128 32k;
proxy_send_timeout 20;
proxy_read_timeout 20;
#proxy_max_temp_file_size 1m;
proxy_temp_path ...
-2
votes
2answers
156 views
Is ceph usable with only 100Mbps bandwidth between nodes? [closed]
I haven't great hardware, but my requirements are low, I would like to start using ceph so as to abstract filesystem location and allow potential easy scaling to bigger hardware in an hypothetical ...
15
votes
2answers
295 views
What are the different classes of Internet Connection and how do they differ?
I'm looking for the technical differences between consumer and professional Internet connections. By "professional" I mean:
The kind you can get at a datacenter
The kind you can get at an office ...
3
votes
3answers
253 views
Why are the prices for broadband bandwidth at data centers much higher than consumer/small business offerings? [closed]
The prices for broadband bandwidth at data centers are sometimes as much as 10x higher than for a typical small business/consumer connection, at least where I live. Now, I understand those are two ...
0
votes
0answers
100 views
95th percentile throttling algorithm
Setting up a new router for managing a connection billed according to the a monthly 95th percentile standard, I need to ensure that billable usage not cross a given threshold in order to avoid ...
36
votes
5answers
2k views
Is there a linux terminal command that lets you see the amount of data coming in to your tcp connections in real time?
It would be something similar to top, where you see your cpu processes in real time. I'm not looking for a GUI like Wireshark to do it.
1
vote
2answers
214 views
Linux - Get Outbound/Inbound Traffic by IP address
I am hosting a website and I found that the traffic on my server is quite high.
My Linux server is behind a router in a DMZ. I would like to see the traffic made on my Linux box on the eth0 ...
