Introduction to Open vSwitch (OVS)

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10 жыл бұрын

An Introduction to Open vSwitch (OVS).
Twitter: @davidmahler
LinkedIn: / davidmahler
Links:
Intro to OpenFlow: • Introduction to OpenFlow
Open vSwitch project page: openvswitch.org
OVS Deep Dive Presentation : • Open vSwitch Deep Dive...
OVS FAQs: openvswitch.org/faq
OVS Official Documentation: openvswitch.org/support/
Brent Salisbury's Blog: networkstatic.net/
Commands used in this video:
#show ovs current config summary
ovs-vsctl show
#add a bridge
ovs-vsctl add-br mybridge
#turn up mybridge interface
ifconfig mybridge up
#add eth0
ovs-vsctl add-port mybridge eth0
#remove eth0's IP addressing
ifconfig eth0 0
#make mybridge interface get a DHCP IP
dhclient mybridge
#add tap interfaces
ip tuntap add mode tap vport1
ip tuntap add mode tap vport 2
#add tap interfaces to mybridge
ovs-vsctl add-port mybridge vport1 -- add-port mybridge vport2
#view forwarding table (mac address table)
ovs-appctl fdb/show
#see mapping of OpenFlow ports to system ports
ovs-ofctl show mybridge
#see flow entries (OpenFlow) on mybridge
ovs-ofctl dump-flows mybridge
#see records in ovsdb-server tables
ovs-vsctl list Bridge
ovs-vsctl list Port
ovs-vsctl list Interface

Пікірлер: 470

@PetterBruland 8 жыл бұрын

Thank you for taking the time to create this video and share it with us. Excellent brief explanation, and now I understand why I lost connectivity to my remote box when setting up OVS.

@DavidMahler 8 жыл бұрын

+Petter Bruland You're welcome. Ah, yes I first learned that from Brent Salisbury's blog networkstatic.net/ it was confusing for me too at first.

@matscloud 6 жыл бұрын

THE best OVS intro I've seen so far... right now I see that I was confusing some cocepts, it just all came together now... Thanks!

@DavidMahler 6 жыл бұрын

You're welcome, thanks for the comment!

@PrayingForYourWellBeing 9 жыл бұрын

One of the excellent informational videos i have ever found with such great vocational and presentation skills. Great clarity. Thanks David !!!

@DavidMahler 9 жыл бұрын

Rohan Shah Thanks Rohan! Quite the complement!

@H3cJP Ай бұрын

this is the best explanation i have seen so far, already known some stuff but the way you explained it was excelent, still helping people 10 years later so thanks

@cbaxtermusic 9 жыл бұрын

dude you are making this too easy to understand, GREAT VIDEOS!!!!!!

@DavidMahler 9 жыл бұрын

C Bax Thanks, I'm glad they are useful for you!

@srinivaspithani7645 6 жыл бұрын

What a way to explain such a complex concept for a newbie like me .. can't expect more than this. Thanks for sharing Dave ...well done.

@DavidMahler 6 жыл бұрын

Thank you Srinivas! You are very welcome.

@jeffbrl 10 жыл бұрын

David, thanks for creating this tutorial. Your presentation style makes the content easy to follow.

@DavidMahler 10 жыл бұрын

Thanks Jeff, I appreciate the comment!

@abunaser536 6 жыл бұрын

Jeff Loughridge When busines started ovs & how stores do u have? I am interested about ovs?

@davidcaughey9205 9 жыл бұрын

Excellent work, well presented by someone who has an obvious passion for what they do. I really appreciate these David. Well done hats of to ya

@DavidMahler 9 жыл бұрын

David Caughey I'm glad you like them, thanks for the comment!

@JayLooney 8 жыл бұрын

I feel like it's important to explain that all the commands are just abbreviations of what they are for 'ovs-vsctl' is for Open vSwitch Virtual Switch Control. I think it helps people to remember better and also helps provide some intuition and insight as to what certain commands might do based on what they are called.

@DavidMahler 8 жыл бұрын

+Jay Looney Great suggestion, thanks!

@JayLooney 8 жыл бұрын

+David Mahler no problem, thanks for the videos. I have spent the past few days trying to engineer a non-trivial home network with physical and virtual subnets and this video was super helpful.

@JayLooney 8 жыл бұрын

+David Mahler no problem, thanks for the videos. I have spent the past few days trying to engineer a non-trivial home network with physical and virtual subnets and this video was super helpful.

@JayLooney 8 жыл бұрын

+David Mahler no problem, thanks for the videos. I have spent the past few days trying to engineer a non-trivial home network with physical and virtual subnets and this video was super helpful.

@undeaddutch 10 жыл бұрын

Very clear explanation! Would like to see more :)

@GRAFFDEMON 9 жыл бұрын

This video helped me so much. HOURS I looked for guides thinking I installed it wrong, configured the bridge wrong. But nope. I forgot to add the tap ports to the virtual bridge. Thank you a ton for this video. I'd hug you if I could.

@DavidMahler 9 жыл бұрын

Motör Punx HA, I'm glad I could help via the video, thanks for the comments!

@rraj7491 9 жыл бұрын

Expectation well set and great presentation! Thanks and well done David!

@DavidMahler 9 жыл бұрын

Thanks!

@sivan111in 9 жыл бұрын

Awesome explanation.... I was actually struggling for a working example to make use of OVS to throttle internet traffic for end user VMS. You just gave it... Many thanks...

@DavidMahler 9 жыл бұрын

Viswa K.S.P You're welcome!

@paraffin333 5 жыл бұрын

Hey David, that's a great video with perfect explanation. Was so helpful that I earnestly request you to make another video illustrating the internal design of ovs. :)

@DavidMahler 5 жыл бұрын

Thanks Bushra! Thanks for the feedback!

@Akshatha512 6 жыл бұрын

Thank you, David. Immense respect for your presentation technique and eloquence. You inspire me to learn more and dig deeper to understand the core concepts behind these awesome technologies. I cannot stress the importance of the inspiration you provide. As an intern who wishes to excel in the networking field, it is deeply valuable.

@DavidMahler 6 жыл бұрын

That's, great Akshata. Thanks so much for the kind words! The networking field is definitely about digging deeper into everything.

@buttegowda 9 жыл бұрын

Dear Sir, One of the best presentations O have ever seen. Thanks for your help.

@DavidMahler 9 жыл бұрын

buttegowda Thanks a lot!

@derekchamorro78 10 жыл бұрын

Great video David!!!

@ffp3 8 жыл бұрын

Thank you for this video, very useful, brief and to the point with example. Great job.

@DavidMahler 8 жыл бұрын

Thanks!

@singar1976 9 жыл бұрын

Great video to get started on OVS. Thank you for your effort.

@DavidMahler 9 жыл бұрын

Singaravelu Shanmugam yw!

@srinivaspithani7645 8 жыл бұрын

Nice video David, helped me to learn OVS , a good start for me ... Thanks for uploading .

@DavidMahler 8 жыл бұрын

+Srinivas Pithani Anytime!

@Javier_FH 2 жыл бұрын

Thanks a lot for the explanation David. I love the way explain such a complex subject (at least for me). I wish there would be a revisited version, since many of the commands have changed, but I also understand it is a huge effort. Anyway, once more thank you very much for your clear explanations. Now if the whole exercise works in my machine, I'll be the happiest man in the world :P

@pubdigitalix Жыл бұрын

This is because they change cosmetics things every time to time but the core concepts are the same. man pages are your friend.

@wanderer-1986 7 жыл бұрын

Very good video. Easy to follow and put in terms most people can understand. Well done, and thank you for making it.

@DavidMahler 7 жыл бұрын

Hey Joseph, thanks for commenting! You're welcome!!

@pranaypallavtripathi2460 2 жыл бұрын

This was brilliant. Even though my knowledge of networking is very basic, I could understand everything except the openflow and kernel module part. Thank you so much. Please keep making videos like this. Subscribed 👍

@DavidMahler Жыл бұрын

Thank you Pranay!!!

@spoorthipanduranga6220 3 жыл бұрын

It’s really nice! You have explained clearly. Thanks for sharing the knowledge. Happy to learn.

@DavidMahler 3 жыл бұрын

Glad it was helpful!

@rathisoft 8 жыл бұрын

As always, very informative and helpful.

@DavidMahler 8 жыл бұрын

+Bharathi Athinarayanan Thanks for taking the time to comment!

@manickamdhayalan 9 жыл бұрын

Great David. Awesome video.

@DavidMahler 9 жыл бұрын

Thanks Dhayalan!

@nathanfarrar 9 жыл бұрын

Thank you so much for this video. So helpful for a beginner.

@DavidMahler 9 жыл бұрын

***** You're welcome Nathan!

@tiskanto 10 жыл бұрын

Excellent Job ...!!!! need more videos like these please !

@smasanam 8 жыл бұрын

Very good video and its quite useful. It gave me a good overview of ovs. Thanks David Mahler.

@DavidMahler 8 жыл бұрын

+Saravanan M You're very welcome! I'm happy it helped!

@sreenivasaraju4988 4 жыл бұрын

Excellent demo, makes me easy to understand.

@DavidMahler 4 жыл бұрын

Great!

@pwu2007 7 жыл бұрын

great video, simple and strait forward, easy to understand, thank you.

@DavidMahler 7 жыл бұрын

You're welcome Ping!

@vitalysibichenkov7202 7 жыл бұрын

Thanks for great explanation! I've added script in autostart and all is running well.

@DavidMahler 7 жыл бұрын

You're welcome!

@Neven1986 8 жыл бұрын

Really great introduction on OVS. :)

@DavidMahler 8 жыл бұрын

+Neven Vrenko Thanks for the comment!

@ramprasvm 10 жыл бұрын

to the point and very practical approach.. thanks a lot for the great presentation

@DavidMahler 10 жыл бұрын

No problem! Thanks Rampras.

@TheLastBabyBoomer 10 жыл бұрын

Great introduction. My network is starting to sing now. Thanks!

@DavidMahler 10 жыл бұрын

Oh great John, I see you have OpenFlow 2.0 installed whose flow actions include singing, dancing and foolin' around. Thanks!

@anandanviv1 10 жыл бұрын

It was great listening..Neat presentation

@DavidMahler 10 жыл бұрын

Thanks Vivekanandan

@SeePatPlay 2 ай бұрын

Super helpful video! Thanks

@e.hunter9427 Жыл бұрын

phenomenal explanation and tutorial!

@DavidMahler Жыл бұрын

Thank you! I appreciate this comment!

@dyveshmahadea2728 Жыл бұрын

Did vport 1 and vport 2 appeared for selection of bridge interface?

@ParvizKermani 5 жыл бұрын

Great & easy to understand video. Thank you!

@DavidMahler 4 жыл бұрын

Thanks!

@IncensedCeasar7 9 жыл бұрын

Helps me a lot. Thanks David

@DavidMahler 9 жыл бұрын

yw!

@RohitVerma-wh1ki 10 жыл бұрын

Thanks David.. this video was very useful

@DavidMahler 10 жыл бұрын

Great, glad it was useful Rohit.

@ReubenUrRahman 10 жыл бұрын

I am new to networking domain, But your video is very helpful and easy to understand for target audiences like me. Thank you for sharing !

@DavidMahler 10 жыл бұрын

Great, I'm glad its was helpful. Thanks Reuben.

@easycollabDotNet 9 жыл бұрын

Thanks man - this video helped a lot. I'm subscribing :)

@DavidMahler 9 жыл бұрын

Awesome!

@mohamedel-demery3006 10 жыл бұрын

Excellent Job , please keep going

@DavidMahler 10 жыл бұрын

probably going to post a few more OVS videos next....when I find the time beyond my real job :-). Thanks Mohamed.

@parisonravalomanda7670 10 жыл бұрын

Simple and clear! Thank you

@DavidMahler 10 жыл бұрын

Thanks for the comment Parison. You're welcome!

@vinayaksharma280 3 жыл бұрын

Amazing Very easy to understand explaination..thank you so much

@DavidMahler 3 жыл бұрын

yw!

@rohan2726 8 жыл бұрын

Thank You david. Great video.

@DavidMahler 8 жыл бұрын

You're welcome rohan!

@ashwinkotha 7 жыл бұрын

Mate ! - Do you know you are a superstar :).. Excellent tutorials - keep it coming

@DavidMahler 7 жыл бұрын

LOL, no no. Thanks for commenting dude! (US 'mate' ?)

@Bagga4u 10 жыл бұрын

Very well explained. Thanks !!

@DavidMahler 10 жыл бұрын

You're welcome Prabhjit!

@bsudhakoushik 9 жыл бұрын

Perfect Intro to OVS. :-)

@DavidMahler 9 жыл бұрын

Sudha Koushik Thanks!

@tawakaleezz1993 9 жыл бұрын

Thank you and waiting for more Great Videos

@DavidMahler 9 жыл бұрын

tawakal eezz :-) I'll try.....

@guteusa 9 жыл бұрын

Great video intro on ovsdb!

@DavidMahler 9 жыл бұрын

Gute Fernandes Thanks a lot.

@wdxgy136 8 жыл бұрын

非常好的ovs指导视频，感谢作者！

@DavidMahler 8 жыл бұрын

You're welcome! Thanks for the comment.

@sanshrestha08 9 жыл бұрын

Thanks for a great tutorial David. To all the viewers following this tutorial, just want to inform that you will encounter a problem if you try to assign wireless interface instead of wired interface(eth0) to open vswitch. When you start the VM, you will lost internet connectivity. Try using wired interface to make it work.

@DavidMahler 9 жыл бұрын

sandesh shrestha Thanks Sandesh!

@SharnavBanik 7 жыл бұрын

Excellent tutorial. Thank you.

@DavidMahler 7 жыл бұрын

You're welcome!

@sergiogonzalez6597 9 жыл бұрын

great job, awesome tutorial!!!!

@DavidMahler 9 жыл бұрын

sergio gonzalez Thanks Sergio!

@steveinbox8771 3 жыл бұрын

I am completely new to this but I wanted to say thank you so much for making this great easy to digest video. Explaining the the disconnect part was huge. I also wanted to add this in case someone else new needed it. To configure the mybridge with a static ip. You will should use the below. 1. Assign static ip to mybridge - #sudo ip addr add / dev mybridge 2. Set the default gateway to via mybridge - #sudo route add default gw mybridge 3. You may need to remove the eth0/ens default gateway route to ensure the only default route uses mybridge to go to the gateway * I found this because I am trying to learn how to configure openvswitch for lacp with some vm's in vmware. If anyone has any videos like this showing how to do this that would be great *Also if anyone knows offhand how to configure the settings I posted so that they persist upon reboot that would be cool (I am using ubuntu 20.04). vport1 and vport2 also don't persist reboot

@Javier_FH 2 жыл бұрын

Hi Steve, did you ever find answers to your questions? The truth is that I was also trying to follow the demo with a Ubuntu 20.04 VM instantiated in Openstack, but when I redirect eth0 towards the mybridge all goes down. I tried dhclient mybridge and takes forever, but I am afraid it didn't do anything and then when i try to see the routes everything is empty. Did you manage to get a more up to date list of steps. I would love to be able to complete the whole exercise and what David did, feels so easy when he does it :)

@mconran69 8 жыл бұрын

Very good david

@DavidMahler 8 жыл бұрын

+Matthew Conran Thanks Matt! Thought I recognized your name - checking out your blog right now..looks awesome! network-insight.net/

@ig2947 8 жыл бұрын

Amazing explanation..! - Thanks

@DavidMahler 8 жыл бұрын

Thanks! and you're welcome!

@lihaozou6519 8 жыл бұрын

Very helpful! Nice intro!

@DavidMahler 8 жыл бұрын

+Lihao Zou (Leo) Thanks!

@srinivasanrao4593 4 жыл бұрын

This is so so so so so GOOOd!!! thank you!!!

@DavidMahler 4 жыл бұрын

You're so welcome!

@rathsantosh835 9 жыл бұрын

good video to understand ovs in a very simple way !!!! Thanks

@DavidMahler 9 жыл бұрын

Santosh Rath You're welcome Santosh. Thanks for connecting on linkedin

@vineetkapoor6950 8 жыл бұрын

Hi David, Great Video! Please upload more tutorial videos on OVS. Thanks

@DavidMahler 8 жыл бұрын

+vineet kapoor Thanks Vineet! I have 2 ones on OpenStack on deck, the second one will get a bit into how OVS is used there for Neutron.

@wamosalis26 9 жыл бұрын

Great video. It really helps me

@DavidMahler 9 жыл бұрын

Great!

@timmy610387 3 жыл бұрын

Awesome video

@DavidMahler 3 жыл бұрын

Thanks!

@SandeepSingla2010 10 жыл бұрын

thanks a lot, great intro

@r1ckmav 9 жыл бұрын

thanks David that was a good one

@DavidMahler 9 жыл бұрын

Ashish Jain You're welcome. Glad you liked it!

@geneviveyabaluri3327 10 жыл бұрын

Thanks a lot! very good introduction!

@DavidMahler 10 жыл бұрын

Genevive Nandury Thanks!

@donmccoy20 6 жыл бұрын

Brilliant video, thanks so much

@DavidMahler 6 жыл бұрын

Thank you!

@young-bosim8284 8 жыл бұрын

Soooooooooooooooooooo useful for me!! Thank you so much.

@DavidMahler 8 жыл бұрын

You're very welcome!!!! Thanks for commenting.

@richardwang1480 10 жыл бұрын

very good introduction course!!

@DavidMahler 10 жыл бұрын

Thanks Richard

@RebeliousSapien Жыл бұрын

this was so incredibly well explained. thank you so much any chance of setting up vlan tagging on ovs switches in the future please ?

@aliakbarhemmati31 5 жыл бұрын

That was great. Thanks a lot man!

@DavidMahler 4 жыл бұрын

You're welcome!

@RM-gm7lu 3 жыл бұрын

Thanks for the great content!

@DavidMahler 3 жыл бұрын

Glad you enjoy it!

@lifeisbeautiful7882 2 жыл бұрын

Great explanation, thanks

@DavidMahler Жыл бұрын

YW!

@dyvm3180 Жыл бұрын

Did vport 1 and vport 2 appeared for selection of bridge interface?

@loipan1891 10 жыл бұрын

Thanks David. That's nice.

@DavidMahler 10 жыл бұрын

You're welcome Loi!

@PETAJOULE543 5 жыл бұрын

Open vSwitch explained well (it is Switch that utilize OpenFlow concepts) and also practical implementation with these command lines. As default implementation, it work like regular layer 2 switch. But we can modify it further to get SDN capabilities.

@vinllenchen9964 9 жыл бұрын

nice vedio! thank you David

@DavidMahler 9 жыл бұрын

Vinllen Chen You're welcome!

@yanandre7352 10 жыл бұрын

excellent video! thanks!

@DavidMahler 10 жыл бұрын

You're welcome Yan! Thank You!

@vmejia1979 Жыл бұрын

Great video.

@DavidMahler Жыл бұрын

Thanks!

@user-cu3ti4cr2j 6 жыл бұрын

It‘s very useful, thank you a lot.

@DavidMahler 6 жыл бұрын

You're welcome, thanks for commenting.

@anatoxin 6 жыл бұрын

Clear presentation

@DavidMahler 6 жыл бұрын

Thanks a lot!

@hansyin 8 жыл бұрын

Great video. thanks!

@DavidMahler 8 жыл бұрын

+Jun Yin Thanks Jun!

@dillip4572 6 жыл бұрын

Good intro stuff. Thanks

@DavidMahler 6 жыл бұрын

You're welcome!

@AlanMcKay 10 жыл бұрын

Thanks for the vid

@DavidMahler 10 жыл бұрын

You're welcome Alan.

@tolosricardos2111 Жыл бұрын

Very helpful. Thank you very much. 🙏🙏🙏🙏🙏🙏🙏

@DavidMahler Жыл бұрын

Most welcome 😊

@dyveshmahadea2728 11 ай бұрын

You have been able to configure this?

@vaytess 6 жыл бұрын

Great video! Thanks a lot

@DavidMahler 6 жыл бұрын

You're welcome!

@rexagon7945 6 жыл бұрын

Love the demo part.

@DavidMahler 6 жыл бұрын

Thanks, Visuals help me to learn a lot

@emmalu9825 8 жыл бұрын

Thx! This video helps a lot.

@DavidMahler 8 жыл бұрын

+xueyan lu No problem!

@krskeshara 8 жыл бұрын

great video to get understand. Thanks....

@DavidMahler 8 жыл бұрын

+Keshara Dorakumbura You're welcome, thanks for commenting!

@raajkr6762 8 жыл бұрын

Very useful talk

@DavidMahler 8 жыл бұрын

Thanks!

@Oswee 3 жыл бұрын

Would be really great to have updated 2021 version of this very same video. :)

@DavidMahler 3 жыл бұрын

I agree ha.

@MartynDavies 4 жыл бұрын

Very useful, thanks

@DavidMahler 4 жыл бұрын

You're welcome!

@abdulrahmansattar2873 6 жыл бұрын

Thanks a bunch for making these videos. They are very clear. Would you have recommend any books that cover the internals of openstack and openvswitch? Also any books which would walk you through building your own networking lab, using the technologies you cover. Thanks once again!