Shaping Linux Traffic with tc

  Рет қаралды 25,459

octetz

octetz

Күн бұрын

Пікірлер: 70
@peterg91
@peterg91 Жыл бұрын
Excellent demo even in 2023!! Much appreciated to give a sense to few of cornerstones of otherwise heavy-looking manual content
@mikinio303
@mikinio303 4 жыл бұрын
Your videos are incredibly good, please don't stop making them
@teamkilla4313
@teamkilla4313 26 күн бұрын
The reason why you don't get quite 100Mbit throughput is that iperf shows layer 4 payload throughput, while qdisc rates also account for lower layer headers
@ramseshernandez3725
@ramseshernandez3725 Жыл бұрын
I was searching the way to simulate limited bandwith to make a proof of concept network with protocols HTTP and MQ, and I found your video ; great video ...
@flyinokie
@flyinokie Ай бұрын
Been googling for days. Watching this video have me a quick start. Thank you!
@kaikun26
@kaikun26 Жыл бұрын
You saved by Bachelor's thesis one week before the deadline. Thank you so much
@lukezhang3715
@lukezhang3715 Жыл бұрын
Can't believe I watched it from beginning to the end! Great video man, thanks for making this.
@alijavidi2503
@alijavidi2503 Жыл бұрын
This is such a high quality video that I couldn't resist my urge to subscribe! You're great at explaining stuff, Keep it going
@al-du6lb
@al-du6lb 3 жыл бұрын
Dude, you definitely have a talent for teaching.
@sylvainrocca-serra3402
@sylvainrocca-serra3402 2 жыл бұрын
TC is incredible, I did not knew that tool and the stuff you can do with it is amazing, gotta look into it ! Great Video keep up the good work !
@JitenPalaparthi
@JitenPalaparthi 2 жыл бұрын
8:46 genius stuff. Happy that I worked with you for some time :)
@joshrosso
@joshrosso 2 жыл бұрын
Hey Jiten! Nice to hear from you and thanks :)
@isaacc2887
@isaacc2887 11 ай бұрын
High quality video, still a great resource in 2024
@Foysalispbroadbandmetrowifi
@Foysalispbroadbandmetrowifi 4 ай бұрын
Great tutorial, Thank you so much
@RiseAgainst004
@RiseAgainst004 2 жыл бұрын
amazing stuff, thank you very much for that informative video and sharing the script with us. was looking for a solution for weeks now and yours did the job perfect! You definitely have a talent for teaching.
@peterg91
@peterg91 Жыл бұрын
agree here
@leandrormor
@leandrormor 2 жыл бұрын
thanks, your explanation is fantastic =] , I'm going to watch more of your videos later this week (and recommend)!!!
@curtisscholl569
@curtisscholl569 2 жыл бұрын
Excellent. This gives me a basis to learn from! Thanks
@jiezheng9454
@jiezheng9454 Жыл бұрын
This is sooooo good! Thank you so much! Please keep making these videos!
@tomschuring
@tomschuring 2 жыл бұрын
best description i've found on tc.. thank you !
@PetrasL_1976
@PetrasL_1976 3 жыл бұрын
Really this is the best introduction to TC i have ever seen! Thanks.
@creponnekarim2865
@creponnekarim2865 2 жыл бұрын
this video was amazing it really demystified the whole scary tc command for me thanks man !
@Diamond-rs1jz
@Diamond-rs1jz 2 жыл бұрын
that's probably most interesting video about qos i've ever seen.
@joshrosso
@joshrosso 2 жыл бұрын
Really rad to hear, thank you!
@furkanturkal8414
@furkanturkal8414 2 жыл бұрын
Such an awesome video! Keep this great work!
@ZeroMan1986
@ZeroMan1986 3 жыл бұрын
Thank you for the great video. I understanding tc much better than before. Many thanks
@rafaelcampoverde
@rafaelcampoverde 3 жыл бұрын
I wait for this for so long.. thank you!!!!
@jeanchristophe5976
@jeanchristophe5976 3 жыл бұрын
great video, best introduction to tc I’ve ever read.
@giancarloboaron7266
@giancarloboaron7266 4 жыл бұрын
What a great video! Thanks for sharing you knowledge!
@pot8778
@pot8778 3 жыл бұрын
Good job, I like your way of teaching:)
@kalimuthu6831
@kalimuthu6831 3 жыл бұрын
it's awesome! Please keep doing it
@nayanghosh7100
@nayanghosh7100 2 жыл бұрын
very good explanation .
@Sahana1729
@Sahana1729 2 жыл бұрын
Very helpful, thank you for this video! :)
@swapu1224
@swapu1224 2 жыл бұрын
Nice explanation.. Thank You..
@murat_sezgin
@murat_sezgin 4 жыл бұрын
With one word, this is “awesome”.
@BJHzlz
@BJHzlz 4 жыл бұрын
Pretty awesome, Thanks for sharing this cool stuff.!!!!👍
@PauloMerson
@PauloMerson Жыл бұрын
Excellent explanation with design diagrams! 👏👏👏Do you have a video or blog post explaining the use of `tc` for adding jitter and packet loss?
@lakshminarasimmanv
@lakshminarasimmanv 4 жыл бұрын
Please keep uploading more videos. Keep it up.
@JoschiKraxner
@JoschiKraxner 4 жыл бұрын
Really awesome. You should definitely upload more videos
@nayanghosh7100
@nayanghosh7100 2 жыл бұрын
thank u for this great video.
@sowmyaparvati6220
@sowmyaparvati6220 3 жыл бұрын
This is awesome. Please make a video on how to transfer incoming packets on one interface (ent0)to another interface (ent1) using tc command
@pist0448
@pist0448 7 ай бұрын
Firstly, thanks for the video, really informative! Could you please suggest how to extend the first simple bandwidth shaping example by adding some network latency (e.g. 60 ms) at the same time?
@mokhtarbelkhiati7703
@mokhtarbelkhiati7703 3 жыл бұрын
thank you , this video gives a big help to me .
@michaelwong6004
@michaelwong6004 3 жыл бұрын
very informative! thank you!
@achajackson5898
@achajackson5898 Жыл бұрын
the dst cidr is for a particular server machine, Is it possible to limit for a particular application on that server ? I dont want to limit the entire server traffic. I want a particular app, it that possible ?
@jesseglennthiam6752
@jesseglennthiam6752 2 жыл бұрын
Hi is there some sort of instead putting ip address on dst_cidr, can we put on tls-host/server name as dest address?
@rebelScience
@rebelScience 3 жыл бұрын
Awesome video. Never worked with TC. How can I add packet loss to the script you showed in the video? I tried a bunch of variants but can't get it to work.
@pearlboy
@pearlboy 4 жыл бұрын
Man you nailed it...
@jeep2liberty
@jeep2liberty 2 жыл бұрын
I set this up on a home network. It actually restricted speed (egress) to a target NOT named as CIDR1 or CIDR2. I found that I removed the "default 30" from this line in the script: $TC qdisc add dev $IF root handle 1: htb #default 30 removed After this, the non CIDR host speed test (via iperf3) had the expected unrestricted bandwidth results. So I then tried to find documentation on HTB and what "Default 30" was supposed to mean. Anyone have a clue where to find the answer? Great video and thanks for sharing. It was never detailed as mentioned in the vid what "default 30" meant. (I still learned a bunch ! :-) Thanks) Edit.... I found that 'default' in HTB assigns all traffic not defined (filtered) to a flowid (30 in this case). Hope this helps someone, somewhere, sometime...
@ApexFPS
@ApexFPS 4 жыл бұрын
More videos please please please!!!!
@nithishkgnani
@nithishkgnani 3 жыл бұрын
Thanks for this detailed and yet well explained video. My interface is named "enp0s3" and changed it in the script as required. But when i run it, I get the error "Cannot find device "enp0s3" ". I am able to send traffic via iperf. So the listening and transmission works well. What could be the reason for the cannot find device error ?
@fusca14tube
@fusca14tube 3 жыл бұрын
Awesome! Very neat! Is there a way to activate this traffic control on specifics ports? Thanks.
@xycainoff
@xycainoff Жыл бұрын
it's awesome!
Жыл бұрын
hello could you send example for simulate slow speed like GPRS or dialup and correct latency settings with tc because, i try it, but not working on inbound traffic just outbound, i need to working both inbound and outbound.
@joshrosso
@joshrosso Жыл бұрын
👋, I won't be able to create an example. But I'm hoping you're able to figure it out!
@al-du6lb
@al-du6lb 3 жыл бұрын
so what you're saying is that it's basically the nice command, but for the network?
@Haranoi17channel
@Haranoi17channel 4 жыл бұрын
I have a question. How to attach two network adapters a wifi card and ethernet port to one class in order to be shaped as singular device? Basically I want them both share one bandwidth for download speed with one qdisc which is cake in order to remove ping spikes.
@bqwood
@bqwood 4 жыл бұрын
Try reading this. It's old, but good: lartc.org/lartc.pdf
@ksv6ksv
@ksv6ksv 4 жыл бұрын
Hi Octetz Nice videos I need some clarifications , in this example , you are adding qdisc first tc qdisc add dev eth0 root handle 1:0 then you are creating the class , and then filter. Can we add filter to the existing qdisc or always we need to create new qdisc and then attach filter to it , in my case , in my system, i just listed the qdiscs , it was showing something like below tc qdiscs show qdisc mq 0: dev eth0 root qdisc pfifo_fast 0: dev eth0 parent :1 bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 If i want to add a filter which qdisc i should select (there are 2 qdiscs available above), i want to add filters to exclude some of the ports , what should be the filter commands ? Can you please help me on this ?
@hakanvansbro
@hakanvansbro 3 жыл бұрын
Hi, thanx for a good video. I've been looking for a (c++) api to control tc from my own application, but not found any good hits. Anyone with a good hint? The use case is that I dynamically want to limit bandwidth for e.g. ftp on port 21 based on criteria not possible to detect in the network traffic itself.
@TimFromROC
@TimFromROC 3 жыл бұрын
netlink socket - see iproute2 source code (tc folder)
@zulowski
@zulowski 3 жыл бұрын
This won't work on Arch Linux, we're lacking a kernel module "netem" (network emulation)
@blisshop
@blisshop 3 жыл бұрын
Great but it's just egrees. What about ingress?
@shaunnichols4664
@shaunnichols4664 7 ай бұрын
wow, simple
@prabhakarp9861
@prabhakarp9861 2 жыл бұрын
Josh is battle-tested in TGIK live streaming, this is nothing for him !
@pearlboy
@pearlboy 3 жыл бұрын
Dear Josh This is amazing tutorial, I need your help in addressing why am I not able to limit upload, only download gets limited. I google lot and couldn't able get any working solutions. I've emailed you too, i want to take your paid support from you.
@user-11528
@user-11528 3 жыл бұрын
hi
@ShopperPlug
@ShopperPlug 3 жыл бұрын
This is why Linux sucks, it's complete torture to do all of this using the command line.
@sumanthkaushik3898
@sumanthkaushik3898 3 жыл бұрын
Great tutorial! Thanks
@antl31
@antl31 3 жыл бұрын
great video, thanks!
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