L3VPN: Adding support for import/export target none and import target all

[Sébastien PARISOT]

On-path. But I can't find a reason it could not be useful for reflectors as well.

Thanks for the feedback.
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Sébastien


________________________________________
De : Douglas Fischer <fischerdouglas at gmail.com>
Envoyé : vendredi 5 septembre 2025 11:29
À : Sébastien PARISOT
Cc : bird-users at network.cz
Objet : Re: L3VPN: Adding support for import/export target none and import target all

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Very interesting!

Just out of curiosity.
In the scenario where this became necessary, are you using the Bird on-path, or just as a reflector?

Em sex., 5 de set. de 2025 às 04:15, Sébastien PARISOT <sparisot at iliad-free.fr<mailto:sparisot at iliad-free.fr>> escreveu:
Hello BIRD team,

This patch (for master branch) contains two commits for L3VPN protocol:

- 0001: It adds support for "import/export target none" (or "[]" to specify an empty set, which is the same). For example it can be used when we do not want to import/export any route from/to the VRF, of if we prefer to set the RT it in filters (adding different RT for different IP prefixes for example).

- 0002: It adds support for "import target all", ie all VPN routes are imported in the VRF IP table regardless of the RTs. Useful when we need to import any route or we want to have a more complex policy implemented in filters.

Thanks!
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Sébastien


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Douglas Fernando Fischer
Engº de Controle e Automação