--- title: "From Single Point of Failure to Warm Standby: A Practical Core Switch Disaster Recovery Playbook" url: https://daily.dev/posts/from-single-point-of-failure-to-warm-standby-a-practical-core-switch-disaster-recovery-playbook-rj2lqdzio source_url: https://blogs.halodoc.io/from-single-point-of-failure-to-warm-standby-a-practical-core-switch-disaster-recovery-playbook type: article source: "Halodoc" published: 2026-06-19T04:41:51.433Z updated: 2026-06-19T04:42:22.731Z tags: ["networking"] reading_time: 10 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # From Single Point of Failure to Warm Standby: A Practical Core Switch Disaster Recovery Playbook **[Halodoc](https://daily.dev/sources/halodoc)** · 10 min read · 0 upvotes · 0 comments ## Summary A practical walkthrough of how Halodoc eliminated a single point of failure in their core network by implementing a warm standby switch. The setup uses an existing spare switch kept fully configured and powered on, with pre-labeled cables and documented port mappings so the team can restore full connectivity within 30 minutes by physically moving cables. A Mikrotik-based backup Wi-Fi network runs independently of the core switch, keeping the 24/7 Customer Service team operational during any switchover. Key lessons: maintain strict config parity between primary and standby switches (especially VLANs), pre-position and label all cables, and validate the procedure with a controlled simulation before a real incident occurs. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Racks, sprawl and the myth of redundancy: Why your failover isn’t as safe as you think](https://daily.dev/posts/racks-sprawl-and-the-myth-of-redundancy-why-your-failover-isn-t-as-safe-as-you-think-qqxvdsjma) · CSO Online · 0 upvotes · 0 comments - [A smarter switch for networks that can’t afford to fail](https://daily.dev/posts/a-smarter-switch-for-networks-that-can-t-afford-to-fail-dhl2lomxk) · TechCentral · 0 upvotes · 0 comments - [The Ultimate Guide to an IT Disaster Recovery Plan That Won’t Be Ignored](https://daily.dev/posts/the-ultimate-guide-to-an-it-disaster-recovery-plan-that-won-t-be-ignored-uwryatslz) · Medium · 1 upvotes · 0 comments --- Tags: [#networking](https://daily.dev/tags/networking) [View this post on daily.dev](https://daily.dev/posts/from-single-point-of-failure-to-warm-standby-a-practical-core-switch-disaster-recovery-playbook-rj2lqdzio)