#traffic-shaping

[sevennet-blog]

Solution: Minimal rate and default class problem for HTB #dev #answer #programming

Solution: Minimal rate and default class problem for HTB #dev #answer #programming

Minimal rate and default class problem for HTB

I have some doubts about a HTB structure I’m using.

My aim is to limit the download and upload speed of users in a local network. Each user of the network has a personal list of domains with a down and up speed for the domain he cannot exceed.

It means user1 can have his acces on slashdot.org restricted to 8KB on download and 3KB for upload, and…

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[sevennet-blog]

Fix: What is the best solution for traffic control in a large system (ca. 2000 users)? #solution #development #answer

Fix: What is the best solution for traffic control in a large system (ca. 2000 users)? #solution #development #answer

What is the best solution for traffic control in a large system (ca. 2000 users)?

following situation: We’re a group of students administering the internet connection for the local resident halls, with a total of about 2000 end users.

We have a traffic point system, every MB down- or upload costs points, new points are added by the hour. At the moment, we block a user’s internet access when he…

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[sevennet-blog]

Fix: Packeteer Alternative #programming #fix #solution

Fix: Packeteer Alternative #programming #fix #solution

Packeteer Alternative

I have been tasked with starting to monitor and restrict our companies internet access. We have considered a Squid Proxy server but have decided we need something more robust then that. We would like many of the features commonly available on Packeteer products such as shaping, a web based GUI, and compression but truthfully we simple can’t afford there often outrageous…

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[stackcopybiz]

Fixed: Simulating a low-bandwidth, high-latency network connection on Linux #programming #development #solution

Fixed: Simulating a low-bandwidth, high-latency network connection on Linux #programming #development #solution

Simulating a low-bandwidth, high-latency network connection on Linux

I’d like to simulate a high-latency, low-bandwidth network connection on my Linux machine.

Limiting bandwidth has been discussed before, e.g. here, but I can’t find any posts which address limiting both bandwidth and latency.

I can get either high latency or low bandwidth using tc. But I haven’t been able to combine these into…

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[sevennet-blog]

Fixed: Simulating a slow connection with tc #programming #computers #fix

Fixed: Simulating a slow connection with tc #programming #computers #fix

Simulating a slow connection with tc

I have a linux box (Centos 5.5) on which I want to limit the network traffic. I have an application that we distribute to clients and I want to test it on the minimum recommended bandwidth of 256Mbit/sec. So far the tc tutorials I have seen seem to allow you to limit bandwidth according to certain criteria, but I want to limit the bandwidth in all situations…

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[sevennet-blog]

Fixed: Linux traffic shaping using TC #answer #computers #fix

Fixed: Linux traffic shaping using TC #answer #computers #fix

Linux traffic shaping using TC

My internet connection goes like this:

Internet <-128kbps link-> Cisco Router (Public IP) <-LAN-> Linux router/server (Public IP) <-LAN-> Regular PCs (Public IPs)

The Cisco router:

the first Public IP allocated to my institution (/29)

is programmed to send all packets through the Linux router

The Linux router

The second Public IP allocated to my institution

is…

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[sevennet-blog]

Resolved: Does anyone really understand how HFSC scheduling in Linux/BSD works? #solution #answer #it

Resolved: Does anyone really understand how HFSC scheduling in Linux/BSD works? #solution #answer #it

Does anyone really understand how HFSC scheduling in Linux/BSD works?

I read the original SIGCOMM ’97 PostScript paperabout HFSC, it is very technically, but I understand the basic concept. Instead of giving a linear service curve (as with pretty much every other scheduling algorithm), you can specify a convex or concave service curve and thus it is possible to decouple bandwidth and delay.…

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[sevennet-blog]

Fixed: Rate-limiting incoming traffic #computers #it #development

Fixed: Rate-limiting incoming traffic #computers #it #development

Rate-limiting incoming traffic

I’ve never quite understood whether or not it’s possible to rate-limit incoming traffic. I realize that there is no direct method whereby to control the remote server’s rate of sending packets (unless you’re in control of both endpoints), but taking this limitation into account, how exactly do download managers allow me to successfully set download speed limits?

Is…

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