Policies

Miralem Cebic Updated by Miralem Cebic

Introduction to Policies

The Policies feature in the DE-CIX Cloud ROUTER API allows users to define sophisticated routing behaviors through custom rules. By creating and applying policies, users can influence the handling of routes, such as accepting, rejecting, or modifying attributes like local preference or AS path. This functionality provides powerful tools to fine-tune traffic flows and optimize network performance.

Key Benefits

Granular Route Control:

Policies give users precise control over how routing information is processed, influencing decisions such as which routes to prioritize or reject.

Customizable Actions:

Modify attributes like local_preference or prepend AS numbers to shape traffic paths dynamically.

Flexible Rule Sequences:

Organize rules into sequences for structured and predictable policy enforcement.

Seamless Integration:

Reference existing prefix lists to streamline configuration and reuse defined match conditions.

What to Expect

With the Policies feature in the DE-CIX Cloud ROUTER, users can expect:

Streamlined Route Handling:

Create detailed routing rules to influence route acceptance, prioritization, or rejection based on specific criteria.

Integration with Prefix Lists:

Combine policies with prefix lists for efficient and reusable configurations, targeting specific IP ranges.

Control Over Routing Attributes:

Modify key attributes like local_preference to prioritize traffic or use as_path_prepend to influence route selection by external networks.

Flexible and Orderly Rules:

Define policies with multiple entries, processed in order by their sequence_number, for predictable and structured behavior.

Enhanced Network Security and Performance:

Filter out undesirable routes or traffic by applying the reject action, ensuring a clean and optimized routing environment.

By utilizing policies, users gain powerful tools for network optimization and control, directly aligning with their business and technical needs.

Use Cases

  • Traffic Prioritization: Favor specific routes by assigning higher local_preference values.
  • Path Engineering: Influence external routing by using as_path_prepend to steer inbound traffic.
  • Access Control: Use the filter with reject to exclude specific prefixes or routes from being advertised or received.

By using policies, DE-CIX Cloud ROUTER users gain a robust framework for managing route announcements and optimizing network operations. Whether prioritizing routes, controlling advertisements, or integrating prefix lists, policies empower users with unparalleled flexibility and precision.

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