Re: DNS/IP

On Monday 12 January 2009 00:51:24 TSG sent:
> Toni Stoev wrote:
> > Hi,
> >
> > DNS job
> >
> > When a connection to a network node is to be initiated its DNS name is resolved to an IP address which shows the location of the node on the network. So network nodes are findable by name even if their locations change.
> >   
> I think you are backwards...  The nodes are still reachable if they 
> change their physical location or the assigned networks addresses 
> temporarily mapped too those names by DNS or DHCP.

Findable, not reachable, even just identifiable, is what is essential for the naming system DNS.

> > The job of the DNS is to identify a node by its name. Another job is to maintain information about node's current location so a new connection can be started at any time.
> >   
> Hmm... I think the job of DNS is to map the 'text based system names' to 
> a network address that the routing infrastructure and features can 
> create a set of pathways for that data to reach said system.

The job of the Domain Name System, not routing or delivery system, is to map names to identity. Furthermore, identity mapped to may be of entire routing domains, aggregating nodes.

> > Why should DNS be bothered with connectivity and/or topology status?
> > There must be a distinct mechanism to handle mapping of node identity to network location.
> >   
> GeoPriv would have you believe that another

Still network location is disticnt from geographic.

I suggest that there be a networking asset, an address type, that represents network identity of nodes. And addresses of that type be resolved to by DNS name queries and be mapping to unicast network addresses.
This way DNS shall be unburdened of connectivity, routing and reachability issues related to named nodes.
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