[vnrg] Review of draft-shin-virtualization-meta-arch-01.txt

["Martin Stiemerling" <[e-mail]>]

[writing as individual RG member and not as chair]

Dear all,

Here is a brief review of draft-shin-virtualization-meta-arch-01.txt.

- Section 1, 1st paragraph: this describes abstraction but not virtualization.
- Section 1, page 3, bullet list: how does this related to VNs?
- Section 1.1: too narrow for VN and it mixes VNs with programmable networks.

- Section 2: First para: de-ossification may be one motivation but is in IMHO not the motiviation. 
- Section 2: VNs are not necessarily programmable networks. 

- Section 3: The requirements are too high-level. It would be good to get more detailed requirements and where (from what system) these requirements are.
- Section 4: It's too high-level. A good use case would describe a VN use case and the resulting challenges and requirements

I personally do not yet see this document to be the RG problem statement draft at this point of time. 

The draft misses some important points:
- what are some use cases you have in mind (system and what it does)
  - e.g., testbed virtualization, operator-scale, Internet-scale, etc?
- what components are you using
- how do these components interact
- what about the existing work, e.g., VPNs, L2 link bundling technologies, virtual routers
- what are the problems?

In general: I do not yet see that this draft is really a problem statement. It makes a start and its worth keep working on it, but needs more thoughts and discussions.

  Martin


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