[Babel-users] Propagation of unknown sub-TLV?
Juliusz Chroboczek
jch at irif.fr
Wed Jan 24 18:13:48 UTC 2018
> 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
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