[Nml-wg] DCN glossary

[John Vollbrecht]

Do you have the latest schema?  I would like to understand how this  
all fits together.

I have some questions about how multiple circuits can be carried over  
a Link.  And how multiple paths can be carried over a sequence of  
links.  Perhaps I can ask questions better after looking at the schema.

John

On Jul 1, 2008, at 8:24 AM, Jeroen van der Ham wrote:

> 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.
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John Vollbrecht, Senior Network Engineer
Internet2
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