Under this issue is a discussion on the meaning of “lame delegation” but I see 
a focus on quality of individual name servers (in relation a certain zone).

Delegation is an entity consisting of a set of name servers and, in some cases, 
glue address records. One part of the delegation is to provide the path to the 
child zone content.

For the *delegation* to be lame it is not enough for one name server to be 
“broken”. The entire set must be such that the path to the child zone content 
is not available.

For individual name servers it could be meaningful that say that it is a *lame 
name server* in relation to a certain zone.


Mats

---
Mats Dufberg
mats.dufb...@internetstiftelsen.se<mailto:mats.dufb...@internetstiftelsen.se>
Technical Expert
Internetstiftelsen (The Swedish Internet Foundation)
Mobile: +46 73 065 3899
https://internetstiftelsen.se/


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