James WilliamsSoftware engineer by profession. Anthropologist by education. Field notes, engineering writing, and everything between.https://www.jtdub.com/en-usPydantic AI, and How It Differs from LangChainhttps://www.jtdub.com/2026/09/05/pydantic-ai-and-how-it-differs-from-langchain/https://www.jtdub.com/2026/09/05/pydantic-ai-and-how-it-differs-from-langchain/Pydantic AI treats an LLM call as a typed function call. This post builds agents, tools, and validated structured output against a local Ollama model, then compares the same tasks written in LangChain to show where the two frameworks actually diverge.Sat, 05 Sep 2026 00:00:00 GMTAILLMPydantic AILangChainOllamaPythonDeveloper ProductivityLangGraph Checkpoints Part 3: Time Travel and Recoveryhttps://www.jtdub.com/2026/09/03/langgraph-checkpoints-part-3-time-travel-and-recovery/https://www.jtdub.com/2026/09/03/langgraph-checkpoints-part-3-time-travel-and-recovery/The third part of a three-part series on LangGraph checkpoints. Replay a past step, fork a thread, resume an interrupt, and recover from a failed node.Thu, 03 Sep 2026 00:00:00 GMTAILLMLangChainLangGraphOllamaPythonDeveloper ProductivityLangGraph Checkpoints Part 2: Real Storage with SQLitehttps://www.jtdub.com/2026/09/02/langgraph-checkpoints-part-2-storage-with-sqlite/https://www.jtdub.com/2026/09/02/langgraph-checkpoints-part-2-storage-with-sqlite/The second part of a three-part series on LangGraph checkpoints. Open the database, read the rows, and measure what a conversation costs on disk.Wed, 02 Sep 2026 00:00:00 GMTAILLMLangChainLangGraphOllamaPythonDeveloper ProductivityLangGraph Checkpoints Part 1: Threads, Super-Steps, and Snapshotshttps://www.jtdub.com/2026/09/01/langgraph-checkpoints-part-1-threads-and-snapshots/https://www.jtdub.com/2026/09/01/langgraph-checkpoints-part-1-threads-and-snapshots/The first part of a three-part series on LangGraph checkpoints. What a checkpoint holds, when the graph writes one, and how to read the history.Tue, 01 Sep 2026 00:00:00 GMTAILLMLangChainLangGraphOllamaPythonDeveloper ProductivityThe Dam Above the Confluence: A Correction to My Water Quality Paperhttps://www.jtdub.com/2026/09/01/the-dam-above-the-confluence/https://www.jtdub.com/2026/09/01/the-dam-above-the-confluence/In 2024 I blamed an upstream quarry for the sediment in the South Fork of the San Gabriel River. The flood of July 5, 2025 showed me a simpler cause.Tue, 01 Sep 2026 00:00:00 GMTEnvironmentWater QualityTexasResearchAnalysisCapitalism, Colonialism, and the Drain That Never Stoppedhttps://www.jtdub.com/2026/08/31/capitalism-colonialism-and-the-drain-that-never-stopped/https://www.jtdub.com/2026/08/31/capitalism-colonialism-and-the-drain-that-never-stopped/Europe built the first market society while it ran an empire, and researchers now try to measure what that relation still moves. This is Part 2 of a series.Mon, 31 Aug 2026 00:00:00 GMTAnthropologyCapitalismColonialismPolitical EconomyEconomicsGlobal InequalityAnthropology of Unregulated CapitalismLangChain Multi-Agent Part 3: Handoffs, Skills, and Routershttps://www.jtdub.com/2026/08/30/langchain-multi-agent-part-3-handoffs-skills-and-routers/https://www.jtdub.com/2026/08/30/langchain-multi-agent-part-3-handoffs-skills-and-routers/The third part of a three-part series on LangChain multi-agent patterns. Build handoffs, skills, and routers, then compare five designs on measured cost.Sun, 30 Aug 2026 00:00:00 GMTAILLMLangChainLangGraphOllamaPythonDeveloper ProductivityLangChain Multi-Agent Part 2: Designing Subagentshttps://www.jtdub.com/2026/08/29/langchain-multi-agent-part-2-designing-subagents/https://www.jtdub.com/2026/08/29/langchain-multi-agent-part-2-designing-subagents/The second part of a three-part series on LangChain multi-agent patterns. Every design decision inside the subagents pattern, measured on a local model.Sat, 29 Aug 2026 00:00:00 GMTAILLMLangChainLangGraphOllamaPythonDeveloper ProductivityLangChain Multi-Agent Part 1: The Subagents Patternhttps://www.jtdub.com/2026/08/28/langchain-multi-agent-part-1-the-subagents-pattern/https://www.jtdub.com/2026/08/28/langchain-multi-agent-part-1-the-subagents-pattern/The first part of a three-part series on LangChain multi-agent patterns. Build the subagents pattern on Ollama, then measure its cost against a single agent.Fri, 28 Aug 2026 00:00:00 GMTAILLMLangChainLangGraphOllamaPythonDeveloper ProductivityLangChain Part 3: Loaders, Embeddings, Vector Stores, and Retrievalhttps://www.jtdub.com/2026/08/27/langchain-part-3-retrieval-and-rag/https://www.jtdub.com/2026/08/27/langchain-part-3-retrieval-and-rag/The final part of a three-part introduction to LangChain. Load documents, split them, embed them with a local model, store the vectors, and retrieve the right chunks to build a complete retrieval augmented generation chain that runs on your laptop.Thu, 27 Aug 2026 00:00:00 GMTAILLMLangChainRAGEmbeddingsOllamaPythonLangChain Part 2: Prompt Templates and Output Parsershttps://www.jtdub.com/2026/08/24/langchain-part-2-prompts-and-parsers/https://www.jtdub.com/2026/08/24/langchain-part-2-prompts-and-parsers/The second part of a three-part introduction to LangChain. Build reusable prompts with PromptTemplate and ChatPromptTemplate, slot conversation history in with MessagesPlaceholder, and turn model replies into validated Python objects with output parsers.Mon, 24 Aug 2026 00:00:00 GMTAILLMLangChainOllamaPythonDeveloper ProductivityMarket Society Is the Invention, Not Marketshttps://www.jtdub.com/2026/08/24/market-society-is-the-invention-not-markets/https://www.jtdub.com/2026/08/24/market-society-is-the-invention-not-markets/Markets are ancient and very widespread. A market society, where price alone settles the allocation of land and labor, is a recent and contested invention. Anthropology gives us the tools to see the difference. This is Part 1 of a series.Mon, 24 Aug 2026 00:00:00 GMTAnthropologyCapitalismPolitical EconomyEconomicsNeoliberalismAnthropology of Unregulated CapitalismThe Quiet Rewrite of Environmental and Cultural Reviewhttps://www.jtdub.com/2026/08/22/the-quiet-rewrite-of-environmental-and-cultural-review/https://www.jtdub.com/2026/08/22/the-quiet-rewrite-of-environmental-and-cultural-review/Between January 2025 and July 2026, the federal government removed the government-wide rules for environmental review. It narrowed what agencies must consider. It also moved to rewrite the historic preservation process that has governed federal projects since 1966. This post explains what changed, and what the changes mean for public lands, the environment, and cultural heritage.Sat, 22 Aug 2026 00:00:00 GMTPoliticsPublic LandsEnvironmentCultural HeritageArchaeologyAnalysisLangChain Part 1: Models and Messageshttps://www.jtdub.com/2026/08/21/langchain-part-1-models-and-messages/https://www.jtdub.com/2026/08/21/langchain-part-1-models-and-messages/The first part of a three-part introduction to LangChain. Set up Ollama, make your first model call, and learn what SystemMessage, HumanMessage, and AIMessage actually do, along with the temperature and num_predict settings that control the output.Fri, 21 Aug 2026 00:00:00 GMTAILLMLangChainOllamaPythonDeveloper ProductivityMaking Open Source Contributing Standards AI-Friendlyhttps://www.jtdub.com/2026/08/04/making-open-source-contributing-standards-ai-friendly/https://www.jtdub.com/2026/08/04/making-open-source-contributing-standards-ai-friendly/Tue, 04 Aug 2026 00:00:00 GMTOpen SourceAIAI Coding AssistantsDeveloper ExperienceDocumentationhier_configClaudeCode ReviewControlling APC PDUs with a Nautobot Jobhttps://www.jtdub.com/2026/06/14/controlling-apc-pdus-with-a-nautobot-job/https://www.jtdub.com/2026/06/14/controlling-apc-pdus-with-a-nautobot-job/Sun, 14 Jun 2026 00:00:00 GMTNautobotPythonNetwork AutomationNetwork ProgrammabilityDevOpsNetwork DevOpsAPCPDUnetmikoThe Breadth of Vision: What Cold War Education Policy Can Teach Us About the AI Racehttps://www.jtdub.com/2026/06/10/the-breadth-of-vision/https://www.jtdub.com/2026/06/10/the-breadth-of-vision/America answered Sputnik by investing in broad education, and it paid dividends for decades. Facing an AI race with China, we are doing the opposite.Wed, 10 Jun 2026 00:00:00 GMTEducationAnthropologyAIPoliticsThe Evidence: Climate Change in the Cordillera Vilcanotahttps://www.jtdub.com/2026/05/08/evidence-of-climate-change-cordillera-vilcanota/https://www.jtdub.com/2026/05/08/evidence-of-climate-change-cordillera-vilcanota/Fri, 08 May 2026 00:00:00 GMTAnthropologyResearchPeruCordillera VilcanotaClimate ChangeGlaciologyHydrologyWhen the Mountain Turns Grey: Lessons from My Capstone Researchhttps://www.jtdub.com/2026/04/28/when-the-mountain-turns-grey-blog/https://www.jtdub.com/2026/04/28/when-the-mountain-turns-grey-blog/Tue, 28 Apr 2026 00:00:00 GMTAnthropologyResearchPeruCordillera VilcanotaQuechuaClimate ChangeThe Ausangate Prophecy and Glacial Retreathttps://www.jtdub.com/2026/04/09/the-ausangate-prophecy-and-glacial-retreat/https://www.jtdub.com/2026/04/09/the-ausangate-prophecy-and-glacial-retreat/Thu, 09 Apr 2026 00:00:00 GMTAnthropologyResearchPeruCordillera VilcanotaQuechuaClimate ChangeGlaciologyApplying the Software Development Lifecycle to AI-Assisted Coding with Claude Codehttps://www.jtdub.com/2026/02/25/applying-the-sdlc-to-ai-coding-with-claude/https://www.jtdub.com/2026/02/25/applying-the-sdlc-to-ai-coding-with-claude/Wed, 25 Feb 2026 00:00:00 GMTResearchClaude CodeAI-Assisted DevelopmentSDLCSoftware EngineeringLLMiOS DevelopmentPrompt EngineeringDeveloper ProductivityAgentic CodingClaudeThree Ways to Leverage AI for Code Developmenthttps://www.jtdub.com/2026/02/06/three-methods-to-leverage-ai-coding-assistants/https://www.jtdub.com/2026/02/06/three-methods-to-leverage-ai-coding-assistants/Fri, 06 Feb 2026 00:00:00 GMTAILLMCoding AssistantPythonRustEssaysSoftware DevelopmentClaude CodeLearningCode ReviewTest-Driven DevelopmentProgrammingDeveloper ProductivityProposed Energy Mix by 2050https://www.jtdub.com/2026/02/09/2050-energy-mix/https://www.jtdub.com/2026/02/09/2050-energy-mix/Fri, 06 Feb 2026 00:00:00 GMTResearchGreenhouse GasClimate ChangeEnergy TransitionDecarbonizationClimate PolicyRenewable EnergyNuclear EnergyGrid ResilienceBattery StorageTransportation ElectrificationBiofuelsSustainabilityWhen Authority Overrides Evidence: An Anthropological Analysis of Why People Believe Power Over Perceptionhttps://www.jtdub.com/2026/02/01/authority-and-perception-bias/https://www.jtdub.com/2026/02/01/authority-and-perception-bias/Sun, 01 Feb 2026 00:00:00 GMTAnthropologyResearchAuthorityPerception BiasWhen the Mountain Decides: A Journey in the Peruvian Andeshttps://www.jtdub.com/2026/01/17/when-the-mountain-decides/https://www.jtdub.com/2026/01/17/when-the-mountain-decides/Sat, 17 Jan 2026 00:00:00 GMTAdventureQuechuaPeruCordillera VilcanotaEssaysThe History of Qoyllur rit’ihttps://www.jtdub.com/2025/09/11/the-history-of-qoyllur-riti/https://www.jtdub.com/2025/09/11/the-history-of-qoyllur-riti/Thu, 11 Sep 2025 00:00:00 GMTAnthropologyResearchQoyllur Rit’IPleiadesQuechuaPeruCordillera VilcanotaThe Shortsighted Expansion of Timber Production: A Dangerous Executive Orderhttps://www.jtdub.com/2025/03/04/the-shortsighted-expansion-of-timber-production/https://www.jtdub.com/2025/03/04/the-shortsighted-expansion-of-timber-production/Tue, 04 Mar 2025 00:00:00 GMTPoliticsAnalysisComparing Javier Milei and Bill Clinton's Balanced Budget Strategies: Lessons for the U.S.https://www.jtdub.com/2025/02/26/milei-v-clinton-strategy-comparison/https://www.jtdub.com/2025/02/26/milei-v-clinton-strategy-comparison/Wed, 26 Feb 2025 00:00:00 GMTEssaysPoliticsAnalysisUnderstanding Dataloaders in AI: What They Are and Why They Matterhttps://www.jtdub.com/2025/02/02/understanding-dataloaders-in-ai/https://www.jtdub.com/2025/02/02/understanding-dataloaders-in-ai/Sun, 02 Feb 2025 00:00:00 GMTPythonOpen SourcePython TipsAIDataloadersIt's Time to Write Your Representatives - February 2025https://www.jtdub.com/2025/02/02/write-your-representatives/https://www.jtdub.com/2025/02/02/write-your-representatives/Sun, 02 Feb 2025 00:00:00 GMTEssaysPoliticsActivism25 Years of U.S. Oil Dynamics: A Deep Dive into Production, Consumption, and Tradehttps://www.jtdub.com/2025/01/27/25-years-of-us-oil-dynamics/https://www.jtdub.com/2025/01/27/25-years-of-us-oil-dynamics/Mon, 27 Jan 2025 00:00:00 GMTEssaysData Is BeautifulAnalysisPythonPython TipsPCAP or It Didnt Happenhttps://www.jtdub.com/2025/01/25/pcap-or-it-didnt-happen/https://www.jtdub.com/2025/01/25/pcap-or-it-didnt-happen/Sat, 25 Jan 2025 00:00:00 GMTMPLSPcapBGPEvpnVxlanVLANGreNetworkingWhat Are Tokenizers in AI, and Why Are They Important?https://www.jtdub.com/2025/01/24/ai-transformers/https://www.jtdub.com/2025/01/24/ai-transformers/Fri, 24 Jan 2025 00:00:00 GMTPythonOpen SourcePython TipsAITransformersHierarchical Configuration Version 3https://www.jtdub.com/2024/12/11/hier-config-version-3/https://www.jtdub.com/2024/12/11/hier-config-version-3/Wed, 11 Dec 2024 00:00:00 GMTPythonHier_ConfigOpen SourcePython TipsNetwork ProgrammabilityDevOpsNetwork DevOpsPredicting Future Internet Capacity Needs Using Time Series Datahttps://www.jtdub.com/2023/11/24/predicting-future-internet-capacity-needs-using-time-series-data/https://www.jtdub.com/2023/11/24/predicting-future-internet-capacity-needs-using-time-series-data/Fri, 24 Nov 2023 00:00:00 GMTPythonPandasMatplotlibNumpyScikit-LearnMachine LearningRegression ModelStatisticsExtracting Specific Key-Value Pairs from a List of Dictionaries in Ansiblehttps://www.jtdub.com/2023/05/13/extracting-specific-key-value-pairs-from-a-list-of-dicts-in-ansible/https://www.jtdub.com/2023/05/13/extracting-specific-key-value-pairs-from-a-list-of-dicts-in-ansible/Sat, 13 May 2023 00:00:00 GMTAnsiblePythonThe Despacho Ceremony: An Ancient Andean Traditionhttps://www.jtdub.com/2023/05/13/the-despacho-ceremony-an-ancient-andean-tradition/https://www.jtdub.com/2023/05/13/the-despacho-ceremony-an-ancient-andean-tradition/Sat, 13 May 2023 00:00:00 GMTEssaysAnthropologyDespachoPeruQuechuaAndean CultureRHCSA Version 8: Operating Running Systemshttps://www.jtdub.com/2022/01/30/rhcsa-operating-running-systems/https://www.jtdub.com/2022/01/30/rhcsa-operating-running-systems/Sun, 30 Jan 2022 00:00:00 GMTRhcsa Study NotesLinuxRedhatRHCSA Version 8: Getting Startedhttps://www.jtdub.com/2022/01/10/rhcsa-version8/https://www.jtdub.com/2022/01/10/rhcsa-version8/Mon, 10 Jan 2022 00:00:00 GMTRhcsa Study Notes2019: Year in Divinghttps://www.jtdub.com/2020/01/09/2019-year-in-diving/https://www.jtdub.com/2020/01/09/2019-year-in-diving/Thu, 09 Jan 2020 00:00:00 GMTEssaysArchaeology Career Prospectshttps://www.jtdub.com/2019/12/11/archaeology-career-prospects/https://www.jtdub.com/2019/12/11/archaeology-career-prospects/Wed, 11 Dec 2019 00:00:00 GMTEssaysResearchArchaeologyA Tale of Incan Apus and Climate Changehttps://www.jtdub.com/2019/11/11/a-tale-of-incan-apus-and-climate-change/https://www.jtdub.com/2019/11/11/a-tale-of-incan-apus-and-climate-change/Mon, 11 Nov 2019 00:00:00 GMTApuPumasilloPeru 2019Peruvian AndesPeruTravelChoquequiraoAnthropologyMy First Ultra Marathonhttps://www.jtdub.com/2019/04/28/my-first-ultra-marathon/https://www.jtdub.com/2019/04/28/my-first-ultra-marathon/Sun, 28 Apr 2019 00:00:00 GMTEssaysTrail RunningColorado Bend State ParkRunningTejas TrailsUltra RunningTinajas 50KGroup Trail Run at Colorado Bend State Parkhttps://www.jtdub.com/2019/04/22/group-trail-run-at-colorado-bend-state/https://www.jtdub.com/2019/04/22/group-trail-run-at-colorado-bend-state/Mon, 22 Apr 2019 00:00:00 GMTTrail RunningColorado Bend State ParkRunning2018 Diving Highlightshttps://www.jtdub.com/2018/12/29/2018-diving-highlights/https://www.jtdub.com/2018/12/29/2018-diving-highlights/Sat, 29 Dec 2018 00:00:00 GMTEssaysAugust SpringCave DivingExplorationRebreather DivingTechnical DivingGoodenough SpringExpeditionScuba DivingRock LakeEl TuleSpring LakeWinter 2017 - Mexico Cave Divinghttps://www.jtdub.com/2017/12/27/winter-2017-mexico-cave-diving/https://www.jtdub.com/2017/12/27/winter-2017-mexico-cave-diving/Wed, 27 Dec 2017 00:00:00 GMTCave DivingMexico 2017PhotographyScuba DivingUnderwater PhotographyGueSibinacocha Aerial Viewhttps://www.jtdub.com/2017/11/10/sibinacocha-aerial-view/https://www.jtdub.com/2017/11/10/sibinacocha-aerial-view/Fri, 10 Nov 2017 00:00:00 GMTPhotographySibinacochaAerial PhotographyPeru 2017Blue Lagoon, October 2017https://www.jtdub.com/2017/11/09/blue-lagoon-october-2017/https://www.jtdub.com/2017/11/09/blue-lagoon-october-2017/Thu, 09 Nov 2017 00:00:00 GMTBlue LagoonPhotographyScuba DivingUnderwater PhotographyGueSpring Lake, September 2017https://www.jtdub.com/2017/11/06/spring-lake-september-2017/https://www.jtdub.com/2017/11/06/spring-lake-september-2017/Mon, 06 Nov 2017 00:00:00 GMTPhotographyScuba DivingUnderwater PhotographySpring LakeExpedition Packinghttps://www.jtdub.com/2017/08/14/expedition-packing/https://www.jtdub.com/2017/08/14/expedition-packing/Mon, 14 Aug 2017 00:00:00 GMTExpeditionSibinacochaScuba DivingPeruTravelPeru 2017A New Approach to Defending Against DDoS Attackshttps://www.jtdub.com/2016/10/21/a-new-approach-to-defending-against/https://www.jtdub.com/2016/10/21/a-new-approach-to-defending-against/Fri, 21 Oct 2016 00:00:00 GMTNetwork SecurityDdosSecurityMiscellaneous HackingNet NeutralityNetwork ConnectivityNetwork Lifecycle Management with Hierarchical Configurationhttps://www.jtdub.com/2016/07/08/network-lifecycle-management-with/https://www.jtdub.com/2016/07/08/network-lifecycle-management-with/Fri, 08 Jul 2016 00:00:00 GMTCisco Administration Python ScriptingPython TipsNetwork ProgrammabilityDevOpsNetwork DevOpsMulti Change and Netlib Updateshttps://www.jtdub.com/2016/06/22/multi-change-and-netlib-updates/https://www.jtdub.com/2016/06/22/multi-change-and-netlib-updates/Wed, 22 Jun 2016 00:00:00 GMTCisco Administration Python ScriptingPython TipsNetwork ProgrammabilityDevOpsNetwork DevOpsKicking the tires on the new Ansible Network Modules, Part 2https://www.jtdub.com/2016/03/01/kicking-tires-on-new-ansible-network/https://www.jtdub.com/2016/03/01/kicking-tires-on-new-ansible-network/Tue, 01 Mar 2016 00:00:00 GMTPython TipsNetwork ProgrammabilityDevOpsNetwork DevOpsAnsibleKicking the tires with the new Ansible Network Moduleshttps://www.jtdub.com/2016/02/29/kicking-tires-with-new-ansible-network/https://www.jtdub.com/2016/02/29/kicking-tires-with-new-ansible-network/Mon, 29 Feb 2016 00:00:00 GMTPython TipsNetwork ProgrammabilityDevOpsNetwork DevOpsAnsibleNANOG 66https://www.jtdub.com/2016/02/15/nanog-66/https://www.jtdub.com/2016/02/15/nanog-66/Mon, 15 Feb 2016 00:00:00 GMTData CenterNetwork ProgrammabilityDevOpsNanogBGPNetwork DevOpsUsing a serial console on Mac OS Xhttps://www.jtdub.com/2016/02/15/using-serial-console-on-mac-os-x/https://www.jtdub.com/2016/02/15/using-serial-console-on-mac-os-x/Mon, 15 Feb 2016 00:00:00 GMTSerialConsoleMac Os XUsing Ansible to update your Home Dynamic DNS via Rackspace Cloud DNShttps://www.jtdub.com/2016/01/29/using-ansible-to-update-your-home/https://www.jtdub.com/2016/01/29/using-ansible-to-update-your-home/Fri, 29 Jan 2016 00:00:00 GMTDevOpsAnsibleUsing Ansible to PUSH Cisco IOS Configurationshttps://www.jtdub.com/2015/08/29/using-ansible-to-push-cisco-ios/https://www.jtdub.com/2015/08/29/using-ansible-to-push-cisco-ios/Sat, 29 Aug 2015 00:00:00 GMTCisco Administration Python ScriptingIOSPython TipsNetwork ProgrammabilityDevOpsNetwork DevOpsAnsibleIOS-XEIOS-XRpyMultiChange rewrite and Netlibhttps://www.jtdub.com/2015/08/26/pymultichange-rewrite-and-netlib/https://www.jtdub.com/2015/08/26/pymultichange-rewrite-and-netlib/Wed, 26 Aug 2015 00:00:00 GMTCisco Administration Python ScriptingPython TipsDockerizing IOS-XRvhttps://www.jtdub.com/2015/04/05/dockerizing-ios-xrv/https://www.jtdub.com/2015/04/05/dockerizing-ios-xrv/Sun, 05 Apr 2015 00:00:00 GMTLinuxSoftware Defined NetworkingMiscellaneous HackingSDNNfvCisco VirlDockerKvmOpen vSwitchIOS-XRTroubleshooting Internet Connectivityhttps://www.jtdub.com/2015/03/12/troubleshooting-internet-connectivity/https://www.jtdub.com/2015/03/12/troubleshooting-internet-connectivity/Thu, 12 Mar 2015 00:00:00 GMTTroubleshootingNetwork ConnectivityRackspacepyMultiChange and pyRouterLib Updateshttps://www.jtdub.com/2015/02/02/pymultichange-and-pyrouterlib-updates/https://www.jtdub.com/2015/02/02/pymultichange-and-pyrouterlib-updates/Mon, 02 Feb 2015 00:00:00 GMTCisco Administration Python ScriptingPython TipsMPLS Control and Data Plane Cheat Sheethttps://www.jtdub.com/2014/12/08/mpls-control-and-data-plane-cheat-sheet/https://www.jtdub.com/2014/12/08/mpls-control-and-data-plane-cheat-sheet/Mon, 08 Dec 2014 00:00:00 GMTMPLSCCNP SP Study NotesIOS-XEIOS-XRCisco VIRL - Bare Metal Install Tips and Lessons Learnedhttps://www.jtdub.com/2014/12/03/cisco-virl-bare-metal-install-tips-and/https://www.jtdub.com/2014/12/03/cisco-virl-bare-metal-install-tips-and/Wed, 03 Dec 2014 00:00:00 GMTLinuxMiscellaneous HackingCisco VirlMisc.Cisco VIRL Status? Digital Paper Weighthttps://www.jtdub.com/2014/12/03/cisco-virl-status-digital-paper-weight/https://www.jtdub.com/2014/12/03/cisco-virl-status-digital-paper-weight/Wed, 03 Dec 2014 00:00:00 GMTMiscellaneous HackingCisco VirlMisc.The Irony of Using SDN and NFV to Study Legacy Network Technologieshttps://www.jtdub.com/2014/11/30/the-irony-of-using-sdn-and-nfv-to-study/https://www.jtdub.com/2014/11/30/the-irony-of-using-sdn-and-nfv-to-study/Sun, 30 Nov 2014 00:00:00 GMTMental Note: Tracking L3 Glean Attackshttps://www.jtdub.com/2014/11/28/mental-note-tracking-l3-glean-attacks/https://www.jtdub.com/2014/11/28/mental-note-tracking-l3-glean-attacks/Fri, 28 Nov 2014 00:00:00 GMTNetwork SecurityIOSRouting ProtocolsL3 GleanCiscoLayer 3 SwitchingpyMultiChange - SSH Script Updatehttps://www.jtdub.com/2014/11/25/pymultichange-ssh-script-update/https://www.jtdub.com/2014/11/25/pymultichange-ssh-script-update/Tue, 25 Nov 2014 00:00:00 GMTCisco Administration Python ScriptingSoftware Defined NetworkingPython TipsUpdated pyRouterLib and pyMultiChangehttps://www.jtdub.com/2014/11/24/updated-pyrouterlib-and-pymultichange/https://www.jtdub.com/2014/11/24/updated-pyrouterlib-and-pymultichange/Mon, 24 Nov 2014 00:00:00 GMTCisco Administration Python ScriptingSoftware Defined NetworkingPython TipsPython with Multiple Threadshttps://www.jtdub.com/2014/11/20/python-with-multiple-threads/https://www.jtdub.com/2014/11/20/python-with-multiple-threads/Thu, 20 Nov 2014 00:00:00 GMTPython TipsConnecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Labhttps://www.jtdub.com/2014/10/01/connecting-your-virtual-ios-xe-and-iox/https://www.jtdub.com/2014/10/01/connecting-your-virtual-ios-xe-and-iox/Wed, 01 Oct 2014 00:00:00 GMTIOSLinuxSoftware Defined NetworkingVirtualizationCCNP SP Study NotesKvmIOS-XEOpen vSwitchIOS-XRWorking with Cisco Routers and Switches with 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