Re: [GLIF tech] Why do we need topology exchange?

[Victor Reijs <victor.reijs@xxxxxxxxx>]

Hello Harvey,

Agree and the implementation and frameworks should enable a simple start 
(to indeed detemrine if success is possible) to a full ramp up.

All the best,


Victor

Harvey Newman wrote:
>  HI All,
>
> My opinion is - you can abstract what you need if you do not
> want to divulge your full topology, but eventually a lot of information
> will be needed.
>
> In the early phases just stitching up a few circuits should clearly be
> the focus. Later, assuming success, the resources for circuits will
> be limited so detailed choices, allocations to make efficient use
> of the resources in the presence of multiple requests, and scheduling
> will follow. Given the status of the LHC experiments as likely main
> users, with many sites having large needs and the LHC Computing
> Models changing, the requirements will ramp up quickly in complexity as 
> well
> as capacity soon after we get started.
>
> Regards
> Harvey
>
>
>
> On 10/15/2010 6:19 AM, Victor Reijs wrote:
> > Hello John and Freek,
> >
> > John Vollbrecht wrote:
> > > The rest of topology I am not sure about.  I would think it a good 
> > > thing, but I also think it would take a lot of work and be hard to 
> > > maintain.  Is this what you mean?
> >
> > In some way I like the idea we had in AutoBAHN: an abstracted topology 
> > to determine the path.
> > An abstracted topology does not hold much detail just enough to 
> > determine the possible path (I am see this as with human: when they 
> > talk about a project they more or less have the physical connectivity 
> > in their had.
> > The next step is are higher network protocol levels compatible.
> > This is the very first part of path finding (the net graph, which can 
> > be in one or two stages).
> > And than can we make them work (Stitching Framework).
> > And then implement it (Signaling).
> >
> > So A full topology is not needed in my humble opinion, but an abstract 
> > (at least see a domain as a node).
> >
> > All the best,
> >
> >
> > Victor


--
HEAnet National Networking Conference, 10-12 November 2010
Registration is now open at: http://www.heanet.ie/conferences/2010/

Victor Reijs, Network Development Manager
HEAnet Limited, Ireland's Education and Research Network
1st Floor, 5 George's Dock, IFSC, Dublin 1
Registered in Ireland, no 275301
tel: +353-1-660 9040  fax: +353-1-660 3666
web: http://www.heanet.ie/