[Nsi-wg] Topology virtualisation

[Victor Reijs]

Hello Gigi,

Gigi Karmous-Edwards wrote:
> True, it is a domain. However, if a GOLE has the property of being "open 
> policy"  and its main service is to interconnect paths between GOLEs and 
> domains, then from a "strictly" path computation perspective, and if 
> given a choice between a transient link across a domain w/ policy or 
> through an open policy GOLE, then it seems that the path computation 
> entity will find it simpler to  choose the  the path through the GOLE 
> rather than the domain. What are your thoughts on this particular 
> scenario...

Perhaps I have no full solution to the problem, but IMHO it would be 
great if we can define the properties of a GOLE to any Domain.
So the main question is: are 'GOLE' and 'Domain' different objects, or 
are they the same object (different instances) with different attribute 
values.
I would prefer the last one as it provide a larger flexibility (e.g. a 
'Domain' can be a 'GOLE'  in context or when time changes)

> I can see a situation  where an end user may choose to go through a 
> particular  domain  if  they are members of a domain and have certain  
> privileges.

This is not only related to policy, might also be QoS, etc.

All the best,


Victor

-- 
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/