Quality of service is the ability to provide different priority to different applications, users, or data flows, or to guarantee a certain level of performance to a data flow.

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Marking packets with iptables with a NAT

I have to write bash scripts for a router to control bandwidth limitation for a given user on a given domain name. For this, I'm using iptables to mark the packets incoming from a restricted domain ...
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1answer
3k views

How to use virtualbox to simulate a sub network with the host as router?

I am currently working on QoS router functions using iptables and tc on Linux. I would like to use virtualbox to simulate a computer plug on my router (The router would be the host) Physically, I ...
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6answers
5k views

Rate limiting an internet connection per user

I've got a friend who has a "rent-by-room" property and includes internet access as part of this. However some tenants are somewhat hogging the internet (i.e. constantly downloading). I was ...
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4answers
559 views

Prevent a download to saturate all bandwidth on Linux

In Linux, a single download can use all available bandwidth, so that any other connection can't be started. (e.g. if I am downloading updates, I can't surf the web at the same time) Is there a way to ...
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5answers
2k views

How should I set up a gateway to restrict internet traffic in a college dorm?

OK, like all college IT departments, we've been battling P2P abuse and trying to figure out how to effectively mitigate it's impact on our network infrastructure.... And then we find out TODAY that ...
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5answers
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QoS for very basic LAN/WiFi network: Do I need SmoothWall or OpenWRT or just good advice?

Here is the basic situation/topology of the network I manage: Residential, but we are a co-op, so we have a business-class contract with ISP. The residents are college students, so there is quite ...
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3answers
8k views

QoS basics on a Cisco ASA

Could someone briefly explain how to use QoS on Cisco ASA 5505? I have the basics of policing down, but what about shaping and priorities? Basically what I'm trying to do is carve out some bandwidth ...
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2answers
2k views

Best tool for QoS testing [closed]

The problem is that, i cant find good tool for QoS configuration testing(linux). I have some switches and configured QoS on them. Installed two PC's with wireshark for watching whether switches are ...
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3answers
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Are there simpler ways to do traffic shaping in linux besides tc?

I read lartc but I don't feel I need such a complicated solution for simple needs. One of such simple use cases is to limit a specific process' available bandwidth, upstream or downstream. How can I ...
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5answers
4k views

What is QoS and When to [not] use it?

As the title states! What is QoS When is it good to use it? When is it not good to use it?
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4answers
2k views

Traffic Management recommendations [closed]

What's your strategy towards traffic prioritization/management. I am not really to just get a list of packet shaping solutions. Instead, I would like to get recommendations about traffic management ...
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2answers
525 views

Linux TC / Policy Routing tools

In addition to a really good firewall Linux has a builtin advanced routing and traffic shaping (lartc). There are many applications (firehol, firestarter, etc) to make the creation of iptables ...
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11answers
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SOHO - throttle bittorrent traffic from problem users

I manage the network in a small office (SW dev is my "real job"), and there are a couple of users who beat the hell out of our internet connection by running bittorrent. Between the almost crippling ...