Jerry Sobieski wrote:
What is a "bidirectional port"? It is really two ports bound together for purposes of ... what?
A NML bidirectionalport currently only groups two nml:ports. The sole purpose is that you can stick a name to it. Nothing more. NML, as is currently stands is pure unidirectional. E.g. it is not yet possible to say that a nml:bidirectionalport it is attached to nml:bidirectionallink (which also exists). You need to describe those relations using the underlying unidirectional ports and links. We're not overly thrilled with this restriction, but we postponed the addition of a bidirectional component till we solved other problems first, like getting more experience with the switching capabilities and adaptations we defined at OGF 33, or the integration with the NSI control plane. Adding more headaches because of mixing directionality ("how do I connect my single bidirectional port to your two unidirectional ports?") have less priority.
Topo X1. [...]
Topo X2a & X2b. [...]
TopoX3. [...]
These are useful, but take time to create. Even though I like to, I am currently not able to take this up as volunteer. Freek