Routing Policy Specification Language

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The Routing Policy Specification Language (RPSL) is a language commonly used by ISPs to describe their routing policies.

The routing policies are stored at various whois databases including RIPE, RADB and APNIC. ISPs (using automated tools) then generate router configuration files that match their business and technical policies.

RFC 2622 describes RPSL, and replaced RIPE-181.

RFC 2650 provides a reference tutorial to using RPSL in the real-world.

RPSL has been extended with RPSL-NG (RPSL-Next Generation) effort to support IPv6 routing policies and multicast routing policies. RPSL-NG is defined in RFC 4012.

RPSL Tools and Programs[edit]

  • RtConfig - automatically generate router configuration files from RPSL registry entries (This software is part of the IRRToolSet)
  • irrPT - Tools for ISPs to collect and use information from Internet Routing Registry (IRR) databases

External links[edit]