Networking

BGP Flowspec DDoS Mitigation Architecture

Network Design diagram · made in Skemio

BGP Flowspec network topology showing an analyzer injecting drop filters to upstream border routers, discarding DDoS traffic before firewalls.
BGP Flowspec network topology showing an analyzer injecting drop filters to upstream border routers, discarding DDoS traffic before firewalls.
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What it shows

  • BGP Flowspec distributes granular L3/L4 filtering rules in seconds.
  • Drops volumetric floods at border routers before transit links choke.
  • Avoids crude blackholing that inadvertently takes legitimate services offline.

The takeaway

BGP Flowspec moves dynamic packet filtering to the edge, protecting stateful firewalls from collapse.

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