Failure Domains & Resilience Engineering

All technical articles related to Failure Domains & Resilience Engineering.

• Underlay Is Back Overlay Is Still Lying

  23 Aug, 2026

  Technical deep dive into Underlay Is Back Overlay Is Still Lying

• Quorum design for multi-region network controllers

  19 Aug, 2026

  Technical deep dive into Quorum design for multi-region network controllers

• EVPN MAC mobility storms after isolation gaps

  14 Aug, 2026

  Technical deep dive into EVPN MAC mobility storms after isolation gaps

• Leases, quorums, and fencing for source of truth

  9 Aug, 2026

  Technical deep dive into Leases, quorums, and fencing for source of truth

• AI workbenches for competing root causes

  1 Aug, 2026

  Technical deep dive into AI workbenches for competing root causes

• When STP IGP and BGP Recovered in the Wrong Order

  29 Jul, 2026

  Technical deep dive into When STP IGP and BGP Recovered in the Wrong Order

• Inject Mass Reboots Before Production Does

  24 Jul, 2026

  Technical deep dive into Inject Mass Reboots Before Production Does

• Partial rollback created a half-upgraded fabric

  13 Jul, 2026

  Technical deep dive into Partial rollback created a half-upgraded fabric

• Split-brain triage with CLI, pipeline, and AI

  30 Jun, 2026

  Technical deep dive into Split-brain triage with CLI, pipeline, and AI

• Scan loop or failover triaging a neighbor spike

  28 Jun, 2026

  Technical deep dive into Scan loop or failover triaging a neighbor spike

• Dual-writer IPAM caused address overlap

  18 Jun, 2026

  Technical deep dive into Dual-writer IPAM caused address overlap

• Telemetry architecture for containing cascades

  31 May, 2026

  Technical deep dive into Telemetry architecture for containing cascades

• The real CPU cost of bridge hairpin loops

  23 May, 2026

  Technical deep dive into The real CPU cost of bridge hairpin loops

• ARP storm FHRP flap or duplicate gateway

  18 May, 2026

  Technical deep dive into ARP storm FHRP flap or duplicate gateway

• Timer alignment as a resilience decision

  18 May, 2026

  Technical deep dive into Timer alignment as a resilience decision

• When port isolation fails to contain the blast

  6 May, 2026

  Technical deep dive into When port isolation fails to contain the blast

• How Do You Know Recovery Is Actually Done

  6 May, 2026

  Technical deep dive into How Do You Know Recovery Is Actually Done

• Route Reflector Restarts and Path Hunting Waves

  30 Apr, 2026

  Technical deep dive into Route Reflector Restarts and Path Hunting Waves

• One flow through a first-hop split-brain

  24 Apr, 2026

  Technical deep dive into One flow through a first-hop split-brain

• From flood and learn to proxy resolution

  16 Apr, 2026

  Technical deep dive into From flood and learn to proxy resolution

• When a hidden bridge loop outruns storm control

  15 Apr, 2026

  Technical deep dive into When a hidden bridge loop outruns storm control