[Babel-users] Propagation of unknown sub-TLV?

[Juliusz Chroboczek]

> I would like that Babel-nodes running an implementation of the original
> protocol (call them standard-nodes) would be able to "forward
> information" contained in sub-TLVs coming from "extended-nodes".

[...]

> Is it possible to accomplish this kind of “silent-propagation”?

No.  In Babel, an unknown sub-TLV :

  - is silently dropped if it is non-mandatory;
  - causes the whole enclosing TLV to be dropped if it is mandatory.

What you want is BGP's "transitive attributes".  There's no such feature
in Babel.

> For instance, I am thinking to this in order to deploy an extension
> without the need to reboot the whole network.

Perhaps you can describe your extension, so we can think about it together?

-- Juliusz