[Nsi-wg] NSI reservation extension

[Henrik Thostrup Jensen]

Hi, OpenNSA developer here.

On Thu, 16 Apr 2015, Cabaca Romao, Daniel wrote:

> Dear all,
> I work for the System and Network Engineering research group of the University of Amsterdam, where I have been working on a project
> which involves NSI. In this project we developed a driver for our ExoGENI virtualization cluster [1], to be able to create NSI links
> from the topology created on the cluster to external resources.
> 
> We have found, however, one limitation related to the NSI implementation we are using, OpenNSA, that is the lack of support to
> extend reservations. This is important because in the ExoGENI environment it is possible to extend reservations of topologies, but
> at the moment even though that is applied to the topology, we have no way to apply this extension to NSI reservations.
> 
> Is there any way to overcome this limitation without having an interruption on the data plane?

No, not really. Even if you create a new reservation after the previous, 
the data plane will still be brought down and up. The only proper fix for 
this is to add modify/extension support to OpenNSA.


     Best regards, Henrik

  Henrik Thostrup Jensen <htj at nordu.net>
  Software Developer, NORDUnet