Re: [Int-area] draft-ietf-intarea-tunnels

[Joe Touch <[e-mail]>]

Hi, Lucy,

On 10/31/2015 5:56 PM, Lucy yong wrote:
> Hi Joe,
> 
> Your tunnel draft addresses IP tunnel in the Internet, i.e. both M
> network and N network (in the draft) are on the Internet.

Yes, that's an area already identified for update for clarity.

> The draft describes the arch and req. for use portion of the
> Internet providing a link to other portion of the Internet.
> 
> There are also applications that using portion of the Internet
> provides many links to individual private IP networks, i.e. one link to
> one private IP network. e.g. network virtualization.

Network virtualization has many - often inconsistent and mutually
conflicting - definitions. E.g., IMO, any network that includes tunnels
as links includes network virtualization. A truly virtual network is one
composed entirely of tunnels, IMO.

> It would be useful for your draft to explicitly distinct two cases
> and point out the requirements for both cases. For example, ICMP usage.

I don't see them as distinct. Whether a network is connected to the
public Internet or not is less important than whether IPv4 or IPv6 is
used as the network layer.

Can you clarify how the second case might be distinct from the first
regarding ICMP use or any other aspect?

Joe


> Regards,
> Lucy
> 
> 
>  
>