Details:
How to persist Ostinato config in Virtual Labs
Don't lose your Ostinato traffic configurations when shutting down your virtual lab! Learn the essential steps to save and restore your settings in CML, GNS3, EVE-NG, and ContainerLab in this step-by-...
ostinato.org
November 8, 2026 at 3:11 PM
Details:
I needed to spin up a lab network, and I'm really happy with how https://containerlab.dev/ put it together on top of docker
light on resources, yet surprisingly realistic
light on resources, yet surprisingly realistic
containerlab - Index
Containerlab deploys docker based meshed lab topologies
containerlab.dev
October 28, 2026 at 1:47 AM
I needed to spin up a lab network, and I'm really happy with how https://containerlab.dev/ put it together on top of docker
light on resources, yet surprisingly realistic
light on resources, yet surprisingly realistic
Containerlab destroys container data on teardown. Mount a host directory as a bind volume and save your Ostinato session there. Your traffic config survives lab restarts.
October 20, 2026 at 2:57 PM
Containerlab destroys container data on teardown. Mount a host directory as a bind volume and save your Ostinato session there. Your traffic config survives lab restarts.
MetaRoCE試しました
zenn.dev/nanakanok/ar...
zenn.dev/nanakanok/ar...
MetaRoCE を読んで containerlab で動かしてみた
zenn.dev
October 16, 2026 at 11:01 PM
MetaRoCE試しました
zenn.dev/nanakanok/ar...
zenn.dev/nanakanok/ar...
MetaRoCE を読んで containerlab で動かしてみた
https://zenn.dev/nanakanok/articles/b345cea4338851
https://zenn.dev/nanakanok/articles/b345cea4338851
MetaRoCE を読んで containerlab で動かしてみた
zenn.dev
October 16, 2026 at 11:06 PM
MetaRoCE を読んで containerlab で動かしてみた
https://zenn.dev/nanakanok/articles/b345cea4338851
https://zenn.dev/nanakanok/articles/b345cea4338851
MetaRoCE を読んで containerlab で動かしてみた
MetaRoCEの仕様の要点を整理し、FRRのleaf-spine上で参照実装を動かして、経路の分散や障害時の振る舞いを観察した結果をまとめています。
欠落や遅れを、順序や届いた順番から判断する仕組みは、経路をパケット単位でばらすと成り立たなくなるため、経路の選び方と再送の仕組みはセットで考える必要があります。
MetaRoCEの仕様の要点を整理し、FRRのleaf-spine上で参照実装を動かして、経路の分散や障害時の振る舞いを観察した結果をまとめています。
欠落や遅れを、順序や届いた順番から判断する仕組みは、経路をパケット単位でばらすと成り立たなくなるため、経路の選び方と再送の仕組みはセットで考える必要があります。
MetaRoCE を読んで containerlab で動かしてみた
zenn.dev
October 17, 2026 at 2:10 AM
MetaRoCE を読んで containerlab で動かしてみた
MetaRoCEの仕様の要点を整理し、FRRのleaf-spine上で参照実装を動かして、経路の分散や障害時の振る舞いを観察した結果をまとめています。
欠落や遅れを、順序や届いた順番から判断する仕組みは、経路をパケット単位でばらすと成り立たなくなるため、経路の選び方と再送の仕組みはセットで考える必要があります。
MetaRoCEの仕様の要点を整理し、FRRのleaf-spine上で参照実装を動かして、経路の分散や障害時の振る舞いを観察した結果をまとめています。
欠落や遅れを、順序や届いた順番から判断する仕組みは、経路をパケット単位でばらすと成り立たなくなるため、経路の選び方と再送の仕組みはセットで考える必要があります。
今日のZennトレンド
MetaRoCE を読んで containerlab で動かしてみた
Metaが公開した新RDMAトランスポートMetaRoCEの仕様解説と検証記録です。
RoCEv2の課題であるPFC依存や順序配送の制約を解消し、ロスあり環境でのマルチパス通信やアウトオブオーダー配送を実現しています。
スイッチ要件を簡素化しつつAI大規模ネットワークでの性能向上を目指す設計であり、著者はソフトウェア実装を用いてその挙動を確認しました。
MetaRoCE を読んで containerlab で動かしてみた
Metaが公開した新RDMAトランスポートMetaRoCEの仕様解説と検証記録です。
RoCEv2の課題であるPFC依存や順序配送の制約を解消し、ロスあり環境でのマルチパス通信やアウトオブオーダー配送を実現しています。
スイッチ要件を簡素化しつつAI大規模ネットワークでの性能向上を目指す設計であり、著者はソフトウェア実装を用いてその挙動を確認しました。
MetaRoCE を読んで containerlab で動かしてみた
!MetaRoCE の仕様 v1.0 は 2026 年 10 月に公開されたばかりです。この記事は、仕様と参照実装を読んだうえで、ソフトウェア実装（libsoftmetaroce）を containerlab 上で動かし、プロトコルの仕組みがどう振る舞うかを確かめた個人の検証記録です。ラインレートでの性能評価ではありません。仕様の解釈には誤りが含まれる可能性があります。正確な記述は必ず原典の仕様を
zenn.dev
October 16, 2026 at 11:27 PM
今日のZennトレンド
MetaRoCE を読んで containerlab で動かしてみた
Metaが公開した新RDMAトランスポートMetaRoCEの仕様解説と検証記録です。
RoCEv2の課題であるPFC依存や順序配送の制約を解消し、ロスあり環境でのマルチパス通信やアウトオブオーダー配送を実現しています。
スイッチ要件を簡素化しつつAI大規模ネットワークでの性能向上を目指す設計であり、著者はソフトウェア実装を用いてその挙動を確認しました。
MetaRoCE を読んで containerlab で動かしてみた
Metaが公開した新RDMAトランスポートMetaRoCEの仕様解説と検証記録です。
RoCEv2の課題であるPFC依存や順序配送の制約を解消し、ロスあり環境でのマルチパス通信やアウトオブオーダー配送を実現しています。
スイッチ要件を簡素化しつつAI大規模ネットワークでの性能向上を目指す設計であり、著者はソフトウェア実装を用いてその挙動を確認しました。
ChatGPT just created 50 working #Containerlab files for me with different lab scenarios and initial configs ready for me to learn, break , and fix. This is really cool !
September 15, 2026 at 8:38 PM
ChatGPT just created 50 working #Containerlab files for me with different lab scenarios and initial configs ready for me to learn, break , and fix. This is really cool !
Build your own OT Security Lab.
A virtual OT lab based on containerlab, fully browser based.
Its the perfect playground to analyze network artifacts, example the recent CISA Advisory regarding S7com.
If you are interested in building it yourself: gitlab.switch.ch/martin.scheu...
A virtual OT lab based on containerlab, fully browser based.
Its the perfect playground to analyze network artifacts, example the recent CISA Advisory regarding S7com.
If you are interested in building it yourself: gitlab.switch.ch/martin.scheu...
August 30, 2026 at 8:22 AM
Build your own OT Security Lab.
A virtual OT lab based on containerlab, fully browser based.
Its the perfect playground to analyze network artifacts, example the recent CISA Advisory regarding S7com.
If you are interested in building it yourself: gitlab.switch.ch/martin.scheu...
A virtual OT lab based on containerlab, fully browser based.
Its the perfect playground to analyze network artifacts, example the recent CISA Advisory regarding S7com.
If you are interested in building it yourself: gitlab.switch.ch/martin.scheu...
Working on setting up a JNCIP-SP lab in #containerlab. L3VPN, VPLS, EVPN etc #juniper
December 21, 2023 at 9:30 AM
Working on setting up a JNCIP-SP lab in #containerlab. L3VPN, VPLS, EVPN etc #juniper
利用Service Router OS与Segment Routing SRv6实现L3VPN的Containerlab演示解析
https://qian.cx/posts/5979F27B-C043-4111-A48A-69B08B9642FC
https://qian.cx/posts/5979F27B-C043-4111-A48A-69B08B9642FC
September 18, 2025 at 12:46 AM
利用Service Router OS与Segment Routing SRv6实现L3VPN的Containerlab演示解析
https://qian.cx/posts/5979F27B-C043-4111-A48A-69B08B9642FC
https://qian.cx/posts/5979F27B-C043-4111-A48A-69B08B9642FC
Back in the day getting my CCNA I spent thousands on a clunky home lab and most of the time was spent updating hardware and getting multiport serial adapters working in Linux. It's so cool to see modern solutions like containerlab.dev so folks can spend time learning not setting things up
containerlab
Containerlab deploys docker based meshed lab topologies
containerlab.dev
August 13, 2025 at 6:58 PM
Back in the day getting my CCNA I spent thousands on a clunky home lab and most of the time was spent updating hardware and getting multiport serial adapters working in Linux. It's so cool to see modern solutions like containerlab.dev so folks can spend time learning not setting things up
Try it out and give us your feedback!
You can find us in the containerlab discord or make a GitHub issue.
You can find us in the containerlab discord or make a GitHub issue.
No rest for the wicked 😆
I have some badass colleagues who know enough typescript to be dangerous.
@containerlab.dev got its own @vscode.dev extension baby
Thanks Florian & @labbing.rocks for this delivery, I bet it will make a lot of people happy
marketplace.visualstudio.com/items?itemNa...
I have some badass colleagues who know enough typescript to be dangerous.
@containerlab.dev got its own @vscode.dev extension baby
Thanks Florian & @labbing.rocks for this delivery, I bet it will make a lot of people happy
marketplace.visualstudio.com/items?itemNa...
January 25, 2025 at 10:25 AM
Try it out and give us your feedback!
You can find us in the containerlab discord or make a GitHub issue.
You can find us in the containerlab discord or make a GitHub issue.
This is cool but where is the face of 'the containerlab guy' we all know and love, where is the A.I generated @netdevops.me 😳
December 3, 2024 at 3:08 PM
This is cool but where is the face of 'the containerlab guy' we all know and love, where is the A.I generated @netdevops.me 😳
First post on Blue Sky.
Attending Autocon2, starting with a workshop on Containerlab. Looking forward to the rest as well.
Attending Autocon2, starting with a workshop on Containerlab. Looking forward to the rest as well.
November 18, 2024 at 6:54 PM
First post on Blue Sky.
Attending Autocon2, starting with a workshop on Containerlab. Looking forward to the rest as well.
Attending Autocon2, starting with a workshop on Containerlab. Looking forward to the rest as well.
Fell down the rabbit hole today with Containerlab + DevContainer + Nokia SR Linux . This is insane
#Networking #Containerlab #SRLinux #Homelab
#Networking #Containerlab #SRLinux #Homelab
August 12, 2025 at 4:04 PM
Fell down the rabbit hole today with Containerlab + DevContainer + Nokia SR Linux . This is insane
#Networking #Containerlab #SRLinux #Homelab
#Networking #Containerlab #SRLinux #Homelab
This address should be coming from the docker daemon. Containerlab does not own this part
January 14, 2026 at 9:10 PM
This address should be coming from the docker daemon. Containerlab does not own this part
VS Code extension for @containerlab.dev
What a nice way to make Lab as Code paradigm even more consumable
www.youtube.com/watch?v=NIw1...
What a nice way to make Lab as Code paradigm even more consumable
www.youtube.com/watch?v=NIw1...
VS Code extension for Containerlab
YouTube video by Roman Dodin
www.youtube.com
February 4, 2025 at 11:41 AM
VS Code extension for @containerlab.dev
What a nice way to make Lab as Code paradigm even more consumable
www.youtube.com/watch?v=NIw1...
What a nice way to make Lab as Code paradigm even more consumable
www.youtube.com/watch?v=NIw1...
One of the recent major developments in @containerlab.dev added sudo-less operation mode.
It was a clever "hack" that sets the SUID bit on the containerlab binary so that a regular user use the binary without being the sudo user.
It was a clever "hack" that sets the SUID bit on the containerlab binary so that a regular user use the binary without being the sudo user.
February 3, 2025 at 12:53 PM
One of the recent major developments in @containerlab.dev added sudo-less operation mode.
It was a clever "hack" that sets the SUID bit on the containerlab binary so that a regular user use the binary without being the sudo user.
It was a clever "hack" that sets the SUID bit on the containerlab binary so that a regular user use the binary without being the sudo user.
We recently removed gomplate from @containerlab.dev dependencies, since gomplate brought so many things we don't use, bloating the dependency tree and making the clab binary twice as large.
After we removed it, this is what containerlab v0.63.3 binary holds
(thanks to github.com/Zxilly/go-si...)
After we removed it, this is what containerlab v0.63.3 binary holds
(thanks to github.com/Zxilly/go-si...)
February 1, 2025 at 10:59 PM
We recently removed gomplate from @containerlab.dev dependencies, since gomplate brought so many things we don't use, bloating the dependency tree and making the clab binary twice as large.
After we removed it, this is what containerlab v0.63.3 binary holds
(thanks to github.com/Zxilly/go-si...)
After we removed it, this is what containerlab v0.63.3 binary holds
(thanks to github.com/Zxilly/go-si...)
Instead of turning a blind eye on containerlab, having our own digital twin in EDA, we are investing in integrations. If there are hundreds of containerlab topologies in the wild we should welcome them.
And so we did with our clab-connector project docs.eda.dev/user-guide/c...
2/3
And so we did with our clab-connector project docs.eda.dev/user-guide/c...
2/3
Containerlab Integration - Event Driven Automation
EDA is the platform for automating your infrastructure.
docs.eda.dev
January 20, 2025 at 7:49 PM
Instead of turning a blind eye on containerlab, having our own digital twin in EDA, we are investing in integrations. If there are hundreds of containerlab topologies in the wild we should welcome them.
And so we did with our clab-connector project docs.eda.dev/user-guide/c...
2/3
And so we did with our clab-connector project docs.eda.dev/user-guide/c...
2/3
How come in my Uni days I did stupid things and students nowadays can build and ship great things?
We all wanted Containerlab UI, this might be it.
We all wanted Containerlab UI, this might be it.
January 8, 2025 at 1:28 PM
How come in my Uni days I did stupid things and students nowadays can build and ship great things?
We all wanted Containerlab UI, this might be it.
We all wanted Containerlab UI, this might be it.
when we unminified the @containerlab.dev graph vendored nexui JS library the hell broke loose and GH claimed that Containerlab is a javascript project.
A criminal offense. So we had to fix that.
A criminal offense. So we had to fix that.
December 18, 2024 at 8:22 PM
when we unminified the @containerlab.dev graph vendored nexui JS library the hell broke loose and GH claimed that Containerlab is a javascript project.
A criminal offense. So we had to fix that.
A criminal offense. So we had to fix that.
I'm thinking to try it out for containerlab. I suppose you had no problems ruining it there based on the container backend they offer?
December 6, 2024 at 10:16 PM
I'm thinking to try it out for containerlab. I suppose you had no problems ruining it there based on the container backend they offer?