So, how is this modeled? Victor suggests having the link between two GOLEs as a single domain? How was it done previously? I think the key question that started this debate was: Are GOLEs significantly different from Domains such that we need to model them differently? Or can we use the same object for a domain as GOLE and just add special properties to the object when it is a GOLE? IMHO, I do think the role of GOLEs are different enough that they require a different representation in our topology model. I think this way because of their behavior during path computation. Gigi Cees de Laat wrote:
I completely agree with Erik-jan and this is according our earlier research, see my earlier mail.
Sent from my iPad
On Jun 28, 2010, at 1:04 PM, Erik-Jan Bos <erik-jan.bos@surfnet.nl> wrote:
Hello Gigi:
The way I see this is that a GOLE is policy free, and the policy of the connectivity crossing a GOLE is the "sum" of the policies of the two domains interconnecting/crossconnecting.
A link between two GOLEs, such as the IRNC 10G lambda between NetherLight and StarLight as an example, always has an owner: In this case the IRNC project's principle investigator, with his/her policy!
Best regards,
__
Erik-Jan.
On 06/28/2010 12:58 PM, Gigi Karmous-Edwards wrote:
Ok, sorry, I meant to say.... I assume that if a GOLE is policy free, then the connection between a domain and a GOLE is really based on the policy of the domain that the GOLE is connecting to.
Victor, are you saying that the link between two GOLEs will be represented as a autonomous domain? If so, what NSA (NRM) would advertise this small-single-link domain? Whose policy would be advertised?
How does this work today with links between Starlight and NetherLight, or ManLAN and StarLight?
Gigi
Victor Reijs (work) wrote:
Hello Gigi,
Gigi Karmous-Edwards wrote:
I too have the second picture in mind. I assume policy is advertised by each domain, then path computation reads this policy as constraints during path computation.
That is how I would see it indeed. A GOLE will, IMHO, just has a specific property value.
I assume that if a GOLE is policy free, then the connection between a domain and a GOLE is really based on the domain connecting to the GOLE. If this is a true statement, then is there any policy regarding links interconnecting two GOLEs? whose policy is used if both endpoints of this link are policy free GOLEs?
So in that case the link is another administrative domain (as it has another policy)?
All the best,
Victor
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