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A convention hall with a "DevNet Zone" sign at the forefront. Above, a banner reads "DevNet Zone". Modern decor with tables and screens are visible.

A convention hall with a "DevNet Zone" sign at the forefront. Above, a banner reads "DevNet Zone". Modern decor with tables and screens are visible.

A crowd faces "DevNet Theater 1" where a speaker presents on a screen that reads, "There is GenAl, and there is GenAl tooling."

A crowd faces "DevNet Theater 1" where a speaker presents on a screen that reads, "There is GenAl, and there is GenAl tooling."

A wide shot of a "DevNet Workshop 1" with many attendees in an open, convention-like setting. Some attendees are seated at tables with laptops and headphones, while others stand watching a presenter point at a screen displaying code.

A wide shot of a "DevNet Workshop 1" with many attendees in an open, convention-like setting. Some attendees are seated at tables with laptops and headphones, while others stand watching a presenter point at a screen displaying code.

A presenter speaks on stage at "DevNet Theater 2". Attendees watch a screen that says "What is eBPF?". A second stage that says "DevNet Theater 1" is visible in the background.

A presenter speaks on stage at "DevNet Theater 2". Attendees watch a screen that says "What is eBPF?". A second stage that says "DevNet Theater 1" is visible in the background.

Amsterdam, you did NOT disappoint. 🔥 Packed theaters, standing-room sessions, and incredible conversations at the DevNet Zone. Thank you to everyone who stopped by, asked questions, and coded along with us.

See you in London? 👀

#CiscoLiveEMEA #CiscoDevNet

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A speaker presents to an audience wearing headphones. A screen displays code logs, with text like "devnet-2076-prod" and "Installing Python version 3.13". The speaker gestures while discussing technical details.

A speaker presents to an audience wearing headphones. A screen displays code logs, with text like "devnet-2076-prod" and "Installing Python version 3.13". The speaker gestures while discussing technical details.

A presenter gestures beside a screen displaying "Complete your session surveys" and instructions for using the Cisco Events app to receive a Cisco Live t-shirt. Attendees wearing headphones are seated in rows at "DevNet Zone".

A presenter gestures beside a screen displaying "Complete your session surveys" and instructions for using the Cisco Events app to receive a Cisco Live t-shirt. Attendees wearing headphones are seated in rows at "DevNet Zone".

Attendees in DevNet Workshop 2 wear headphones and use laptops. A presenter stands by a large screen showing code. The room has high ceilings with visible beams. Text: "DevNet Workshop 2", "DevNet Innovation Zone", and "WE ARE one".

Attendees in DevNet Workshop 2 wear headphones and use laptops. A presenter stands by a large screen showing code. The room has high ceilings with visible beams. Text: "DevNet Workshop 2", "DevNet Innovation Zone", and "WE ARE one".

Can't believe we're already at the final day of the DevNet Zone at Cisco Live Amsterdam! It's been an incredible week connecting with all of you, sharing knowledge, and building together.

#CiscoLiveEMEA #CiscoDevNet

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The DevNet Zone with Shannon McFarland Learn more about how DevNet helps by providing resources and tools for cloud-native AI agents, MCP servers, and related software services that support your Cisco infrastructure. Look for sessions on-demand at https://cs.co/63327hPcGd. Follow ‘Cisco Live EMEA’ on social media and join the conversation using #CiscoLiveEMEA

🔥 Fresh from #CiscoLiveEMEA Day 3!

Caught up with Shannon McFarland, VP of Cisco DevNet & OSPO. He's sharing insights on AI, MCP servers, and how DevNet empowers network engineers and developers.

🎥 Watch now: cs.co/63320hPcGg

#CiscoDevNet

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FOSDEM26

FOSDEM26

Cisco DevNet present at FOSDEM26 ⚙️🇧🇪

Shereen Bellamy shared ☕️ Beyond MCP Servers: Why Network Automation Agents Need Knowledge Graphs. Alfonso Sandoval presented 📦 Drag, Drop, & Deploy: Low-Code AI Agents for Network Ops

Check the Network track: cs.co/63322hyi5E
#CiscoDevNet #FOSDEM26

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Cisco DevNet tip: Use Makefiles as universal command interface for projects

Cisco DevNet tip: Use Makefiles as universal command interface for projects

Three developers running different podman commands with inconsistent syntax and volume mounts

Three developers running different podman commands with inconsistent syntax and volume mounts

Makefile with WORKSPACE variable allowing same 'make collect' command across laptop and CI/CD

Makefile with WORKSPACE variable allowing same 'make collect' command across laptop and CI/CD

Makefile using uv sync frozen for reproducible results across development and CI/CD

Makefile using uv sync frozen for reproducible results across development and CI/CD

Makefiles: underrated for non-build workflows.

make install → uv sync
make test → pytest + lint
make deploy → ansible

Same commands locally + CI/CD. Simple, printable, debuggable (1976 Unix ethos). Boring tech that works. 💪

P.S. Image style = Lions book homage 📘

#CiscoDevNet #DevTip

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Cisco DevNet tip: uv - one tool to replace pip, venv, pyenv, and poetry for Python

Cisco DevNet tip: uv - one tool to replace pip, venv, pyenv, and poetry for Python

Terminal showing traditional Python setup with venv, pip install, and comments listing four different tools needed

Terminal showing traditional Python setup with venv, pip install, and comments listing four different tools needed

Terminal showing uv init and uv add commands with automatic virtual environment creation

Terminal showing uv init and uv add commands with automatic virtual environment creation

Terminal showing uvx command running Ansible playbook without prior installation

Terminal showing uvx command running Ansible playbook without prior installation

Python environment management solved: uv

One tool replaces pip, venv, pyenv, poetry. 10-100x faster.

uvx runs tools without installing - from PyPI or GitHub.

⚠️ Verify sources, it's code from the internet.

uv docs: cs.co/633297hxUd

#CiscoDevNet #DevTip #Python

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Cisco DevNet tip: Use purpose built container base images - less bloat, less risk

Cisco DevNet tip: Use purpose built container base images - less bloat, less risk

Terminal showing cat Dockerfile.ubuntu with ubuntu:latest base and podman images output showing 622 MB

Terminal showing cat Dockerfile.ubuntu with ubuntu:latest base and podman images output showing 622 MB

Terminal showing cat Dockerfile.slim with python:3.11-slim base and podman images output showing 199 MB

Terminal showing cat Dockerfile.slim with python:3.11-slim base and podman images output showing 199 MB

Summary: Purpose built images mean only what you need, smaller attack surface, predictable builds, and faster deploys

Summary: Purpose built images mean only what you need, smaller attack surface, predictable builds, and faster deploys

Your container only needs what your app needs.

General purpose base images include hundreds of packages you'll never use each one a potential vulnerability and something to maintain.

Purpose built images: Smaller footprint. Faster deploys. Fewer vulnerabilities.

#CiscoDevNet #DevTip #Containers

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Cisco DevNet holiday tip: Terminal Cheer with cowsay ASCII art

Cisco DevNet holiday tip: Terminal Cheer with cowsay ASCII art

Terminal showing cowsay ASCII cow saying 'May your uptime be high and your latency low'

Terminal showing cowsay ASCII cow saying 'May your uptime be high and your latency low'

Terminal showing cowsay with Tux penguin saying 'Happy Holidays'

Terminal showing cowsay with Tux penguin saying 'Happy Holidays'

Holiday message: May your packets find their way home. Add fortune cowsay to bashrc for daily smiles.

Holiday message: May your packets find their way home. Add fortune cowsay to bashrc for daily smiles.

Holiday terminal tip

`fortune | cowsay`

Random wisdom in ASCII art. Been hiding in Unix since 1979 (fortune) and 1999 (cowsay).

Add it to `.bashrc` for daily login cheer, or set it as your team's MOTD.

Happy holidays—may your packets find their way home 🏠

#CiscoDevNet #DevTip #Linux

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Code Archaeology

Code Archaeology

Step 1. Git Blame

Step 1. Git Blame

Step 2. Git Show

Step 2. Git Show

Understanding What Changed and Why

Understanding What Changed and Why

Debugging tip: git blame + git show is an underrated combo

git blame <file> → see which commit changed each line
git show <hash> → read the commit message and full diff

Only works if commits have context. "Fixed bug" = useless
"Increase timeout for slow WAN links" = gold

#CiscoDevNet #DevTip #Git

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CLI over API

CLI over API

CLI RPC via RESTCONF

CLI RPC via RESTCONF

NX-OS: NX-API CLI

NX-OS: NX-API CLI

IOS-XR: gNMI + ASCII

IOS-XR: gNMI + ASCII

CLI-over-API varies by Cisco platform:

• IOS-XE: CLI RPC (config commands, works over NETCONF/RESTCONF/gRPC)
• NX-OS: NX-API CLI (show + config, JSON output)
• IOS-XR: gNMI with ASCII encoding

Different transports, same idea.

#CiscoDevNet #DevTip #NetworkAutomation

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CLI Parse & Pray. Text Parsing Pain

CLI Parse & Pray. Text Parsing Pain

API RESTCONF Structured Data

API RESTCONF Structured Data

API RESTCONF HTTP Verbs

API RESTCONF HTTP Verbs

API RESTCONF Patch

API RESTCONF Patch

Network automation tip: RESTCONF for structured device data.

Skip the CLI text parsing. Query Cisco devices via HTTP, get JSON back. Works consistently across IOS-XE/XR/NX-OS.

Test free: cs.co/633257UNMW

#CiscoDevNet #DevTip #NetworkAutomation #RESTCONF

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One character saves hours of typing

One character saves hours of typing

Toggle between directories

Toggle between directories

Swtich to previous branch

Swtich to previous branch

CLI efficiency tip: The `-` character is a "previous location" shortcut in bash and git.

cd - (returns to previous dir)
git checkout - (previous branch)

Simple pattern that saves countless keystrokes in toggle-heavy workflows.

#CiscoDevNet #DevTip #CLI #DevOps

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Redes Pythonicas: Automatizando Redes de Datos con Python y Estándares Abiertos - A. Sandoval Rosas Las redes de datos son la columna vertebral de nuestro mundo de IT. Y si eres el administrador en tu empresa, sabes lo engorroso que puede ser gestionarlas. ¿Cuántas horas has pasado copiando y pegando configuraciones en tus dispositivos vía SSH? ¿Qué tal cambiando entre terminales? Y peor aún, ¿depurando errores por algún typo perdido? ¡La gestión de redes moderna ya no está limitada a los comandos clásicos! Acompáñanos en esta sesión, donde exploraremos los fundamentos del mundo de la Programabilidad de Redes. Hablaremos a fondo de todo lo relacionado con NETCONF, RESTCONF y el modelado YANG, aderezado con algunas historias reales de la industria y demostraciones usando Python. ¡Ven y descubre por qué el código es la nueva CLI! Sobre Alfonso Sandoval Rosas: Alfonso (Poncho) is a Developer Advocate at Cisco Systems Portugal. He is passionate about adding value to the IT community with the power of coding. Data Networks, DevOps, Open Source and everything in between are some of his true passions. Apart from that, Alfonso often engages in technical speaking events, university masterclasses and delivery of coding trainings. 🛤️ Track: INFRASTRUCTURE 📋 Formato: Charla

¡DevNet también habla español! 🌎✨

Qué orgullo ser parte de Nerdearla 2025 en Madrid. Nuestro Developer Advocate 🥑 Alfonso Sandoval (Poncho) compartió "Redes Pythónicas: Automatizando Redes con Python y Estándares Abiertos"

🎥 cs.co/633227mhSE
#CiscoDevNet #Nerdearla2025

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The Risky Way. Access directly the dictionary

The Risky Way. Access directly the dictionary

A Safer Way. Use the dictionary GET method

A Safer Way. Use the dictionary GET method

Best Practice. Set a default value on the GET Method

Best Practice. Set a default value on the GET Method

Launching a new weekly #DevTip series! 💡

Instead of `data['key']` which raises a `KeyError`, use `data.get('key', 'default_value')`. This makes parsing varied JSON/YAML from network devices much more robust.

What topics should we cover in this series?

#CiscoDevNet #DevTip #NetworkAutomation

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Tech Tiles: The Art of Innovation with Cisco

Tech Tiles: The Art of Innovation with Cisco

Tech Tiles: The Art of Innovation with Cisco

Tech Tiles: The Art of Innovation with Cisco

Tech Tiles: The Art of Innovation with Cisco

Tech Tiles: The Art of Innovation with Cisco

Lisbon kept the WebSummit energy alive ⚡

At Tech Tiles: The Art of Innovation with Cisco, we teamed up with ThousandEyes to dive into Network Automation, Assurance & AI.

Great demos, sharp insights, and big ideas for what’s next. 🚀🟦
#CiscoDevNet #ThousandEyes #WebSummit #AI

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Halloween Logical Gates

Halloween Logical Gates

🎃 Halloween Logic Gates!

Trick OR Treat = Daily IT life
Trick XOR Treat = Dev ✓ Prod ✗
Trick NAND Treat = Rollback failed too 😱
Trick XNOR Treat = *suspicious silence*

Happy Halloween! 👻

Credit: webbureaucrat & CSS by Alvaro Montoro

#TalesFromTheTechCrypt #NetworkAutomation #CiscoDevNet

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🎃 THE SILENCE OF THE LOGS 🔊

Error → Rollback → Silence

When logs abandon you 👻

Now playing in your favorite data center

#TalesFromTheTechCrypt #NetworkNightmares #CiscoDevNet

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How to Build Next-Gen Agents with LLMs

How to Build Next-Gen Agents with LLMs

🚀 NEW VIDEO ALERT! "Agentic Impressions Ep.1 - Building Next-Gen Agents with Current LLMs" is LIVE! ✨
Tired of waiting for new LLMs? 🤖 Get better AI Agent results NOW through protocols & architecture optimization!
Watch: cs.co/633247DFsY
#CiscoDevNet #AGNTCY #AgenticAI

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10 Pbps bw for RSPV-TE on IOS-XR

10 Pbps bw for RSPV-TE on IOS-XR

Just upgraded my RSVP-TE tunnels to 10 Pbps bandwidth in Cisco IOS XR. So much bandwidth for… traffic engineering activities! (It’s not a single interface, but your tunnels have never had more room.)

Check out: cs.co/63320AheBg

#CiscoDevNet #IOSXR #pushdastuff

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phising mail from hushicorp

phising mail from hushicorp

The timing for this mail was spot on, considering that October is the #cybersecurity awareness month. My vault seems to be hacked, according to the h[u]shicorp team. Good thing I don't even have a vault. Another example is to swap rn for m very common for Microsoft.

#CiscoDevNet

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Ep.3: Crafting your Grafana dashboard & setting up a scheduler with Cisco RADKit.

Ep.3: Crafting your Grafana dashboard & setting up a scheduler with Cisco RADKit.

🚀 New #HackTheRADKit video! ✨ Ep.3: Crafting your Grafana dashboard & setting up a scheduler with Cisco RADKit.

Learn to visualize your data & keep graphs updated! 🔌🤖

Watch the final episode now!
🔗 cs.co/9003ACpDx

#CiscoDevNet #RADKit #Grafana #NetworkAutomation

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switchport trunk allowed vlan 100

switchport trunk allowed vlan 100

Spooky season is here, so we're unearthing our favorite #TalesFromTheTechCrypt.

First up: that chilling moment when you realize you forgot the `add` keyword. 😱
`switchport trunk allowed vlan 100` All other VLANs: _poof_

#NetworkNightmares #CiscoDevNet #Networking

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Cisco Silicon One P200 Powers the First 51.2T Scale-Across Routing Systems Learn how the Cisco Silicon One P200 delivers performance robust enough to power AI data center networks.

Wow, this new impressive the specs of the new Cisco 8223, 51.2 Tbps. 3RU, Fixed. 64 QSFP-DD 800G! I still remember when 100G was huge. But what caught more my eye, it supports SONiC, with XR planned!

blogs.cisco.com/sp/cisco-sil...

#CiscoDevNet

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Building network tools with AI? Check our new video for quick tips & key lessons! Full story here: cs.co/63323fWlD1

#CiscoDevNet

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New Cisco 200-901 dumps practice questions shared online The Cisco 200-901 dumps practice questions released today are the first free share after the latest update by Leads4Pass! A total of 615 exam questions

💪 Boost your chances of passing Cisco 200-901! Our latest blog post has 615 practice questions, answers to popular queries, and expert tips. 🎓 Start your journey to success today! cutt.ly/ErYXQDfE #PassTheExam #CiscoDevNet #DevOps

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Running Ansible with uv

Running Ansible with uv

Simple things like this that just work are what I enjoy. Just copy, paste and boom you have #Ansible working. No need to activate the virtual environment and what happens after it finishes. Just runs, does what is supposed to do and ends.

This is for a repo I will be sharing soon.

#CiscoDevNet

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Linux Foundation Launches the Agent2Agent Protocol Project to Enable Secure, Intelligent Communication Between AI Agents Linux Foundation Launches the Agent2Agent Protocol Project

Great to see the A2A is now part of the Linux Foundation. For developers this makes easy to pick which protocol to use when there is a de facto standard.

#CiscoDevNet

www.linuxfoundation.org/press/linux-...

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350-901 DEVCOR Exam Tips: Study Hacks for Success Discover practical study hacks to excel in Cisco 350-901 DEVCOR exam. Explore tips, resources, practice tests, and insights for exam success.

How to Ace the Cisco 350-901 DEVCOR Exam 🧩

Get visually guided tips, proven study methods, and expert insights to level up your DevNet skills. This is the go-to pin for anyone aiming to pass on their first try.

www.ciscoprep.com/2024/12/31/3...

#350901 #CiscoDEVCOR #StudyTips #CiscoDevNet

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Yesterday was a good day at the DevNet Zone at Cisco Live. I delivered my first session on eBPF, which I was quite nervious, is a new technology I'm learning, but I think it went well. It was also nice to chat with folks at the Share Your Experience booth, come by if you are here.

#CiscoDevNet

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Very happy to be at Cisco Live AMER. The #DevNet zone pretty nice. I also I have four sessions this time. The past weeks had been very busy building everything.

#CiscoDevNet

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