[as112-ops] [Ext] Request to add service.arpa to AS112

[Kim Davies]

Quoting Matthew Pounsett on Thursday August 29, 2024:
> 
> There are only 230 subscribers to this list.  I'm not sure how many unique
> AS112 instances you polled, but the difference between those two numbers will
> give you some idea of the number of instances you should expect to never
> configure service.arpa.  That will be off by some unknown amount due cases of
> multiple list subscribers representing a single instance.

Based on the querying the identity of the responses using
hostname.as112.arpa, the responses are heavily skewed towards a few
large operators. Ranking the responses by operator:

    #1:  198 locations - NXDOMAIN
    #2:  146 locations - prisoner.iana.org. hostmaster.root-servers.org. 1 604800 60 604800 604800
    #3:   52 locations - NXDOMAIN
    #4:   27 locations - NXDOMAIN
    #5:   25 locations - NXDOMAIN

As I sampled from around ~700 sites I think that some targeted adoption
by these leading implementers will significantly improve coverage. (I
can try and reach out to them off-list to prompt action)

> As noted previously, you will be much better off if you can have the
> delegation done using DNAME.

Agreed. There is no dispute its the preferred solution but it will
require some significant work to make it possible, work we are pursuing.
The .arpa operations are currently entangled with root operations
involving systems that were not designed or tested to support DNAME.

kim