RSSAC Statement on ICANN's Proposed Next Steps for IDN Deployment
in the Root Zone
RSSAC has been asked for a statement on ICANN's proposed next steps
for IDN deployment in the root zone.
Policy discussions are continuing and are clearly out of scope
for RSSAC. RSSAC takes no position on what the contents of the strings
used to instantiate IDNs in the root should be, or how many there should
be within a factor of 2-5 times the current size of the root zone, or
what the duration of the test should be, as long as DNS protocol is followed
regarding length of labels, permitted characters, and so on.
With regards to technical and operational issues, RSSAC's consensus
as discussed 18 March in the Praha meeting includes:
- There's no issue with adding standard delegations (NS records)
to the root zone to instantiate IDN at the root.
- RSSAC urges
ICANN to consult DNS experts on constraints such as appropriate TTL
values for test IDNs. RSSAC itself represents a significant reserve
of such expertise and its members would be happy to try to provide
guidance on this subject. However, these details are immaterial to
the job of serving a root zone that includes IDNs; the impact is on
resolvers and applications.
- ICANN will be coordinating the test,
collating test results, and making further decisions about how to go
forward to production deployment. ICANN, particularly IANA as the party
responsible for the root zone, are asked to provide notice to RSSAC
as the test begins and ends and the findings that result from it.
- It's our understanding that several of ICANN's policy bodies are
examining aliasing of domain names as one possible component of an
IDN solution. Aliasing can be accomplished in a variety of ways. If
aliasing of existing domain names is needed as part of the deployment
of IDN, RSSAC would provide technical and operational input on how
to accomplish it effectively. IANA would have to provide notification
of changes to software, hardware, or procedures the root server operators
would need to implement in advance of major changes in the capabilities
required to serve root zone data; the best way to make sure this happens
is to keep RSSAC advised as decisions are made regarding further
tests and eventual production deployment so expectations are clear.
- ICANN may find that it will be useful to have specific data or measurements
from the root server operators, as part of testing or production deployment
of IDN, regarding any changes in traffic or other operational parameters
IDN labels might cause. ICANN is encouraged to outline any specific
measurements in which they are interested relating to the effects of
the test deployment.
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