[Nml-wg] DCN glossary

[Jeroen van der Ham]

John Vollbrecht wrote:
> Of particular note are some terms we  use that don't seem to be in the 
> NML schema (perhaps I am wrong?)
> 
> path - a connection between a source and destination.  A path is a 
> sequence of hops.
> source - starting point of path - as defined by direction of signalling
> destination - end point of path- as defined by direction of signalling
> hop - a network element - [domain or node or port or link]

These are all in the NML schema as proposed so far. We have Path and 
NetworkElement objects. And I think the Source and Destination could be 
encoded as SourceDomain and DestinationDomain.
The *Domains part has not been defined completely yet. But I think we 
can take Victors' presentation as a startingpoint for that?

> 
> path segment - subset of a path consisting of two or more hops
> circuit - a connection between tow endpoints that can be used to 
> transmit data between them

In the discussion in Berlin it was also suggested that we use the term 
"Path" also for path segments. Whether the path is complete can then be 
checked by the using Source- and DestinationDomain.

As for the circuit, I think that that is something for a later schema, 
as it would require descriptions of layers. (otherwise you cannot 
determine whether you can transmit data over it).


Jeroen.