FlowSpec
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SMARTNET / Traffic Filtering

FlowSpec

Fine-grained traffic control with BGP FlowSpec. Available to SMARTNET IP Transit and Colocation customers.

FlowSpec

Granular traffic filtering with BGP FlowSpec

SMARTNET supports FlowSpec to give customers fast, precise control over unwanted traffic. Rules can be sent directly by customers and are propagated across our backbone in real time. This enables quick filtering during attacks without affecting legitimate flows.

Use cases

  • Mitigate DDoS traffic at line rate
  • Filter by source or destination IP
  • Match on port, protocol, or packet size
  • Apply rate limits or discard traffic instantly
  • Protect services without touching end systems
BGP FlowSpec filtering example diagram
Filtering

Fast rule distribution during attacks

FlowSpec is useful when unwanted traffic needs to be filtered quickly without waiting for manual ACL changes on every device.

BGP
Native control

Rules are distributed through BGP FlowSpec.

IP
Source / destination

Match on source or destination prefixes.

L4
Ports / protocol

Match protocol and port conditions.

20
Rules included

Included free of charge.

Availability

Available to Transit and Colo customers

FlowSpec is available for customers who need more control over their traffic. You can provision rules yourself, with support from our NOC if needed.

20 rules are included free of charge.