Hi Donald, Donald Eastlake wrote:
Hi, I believe there is a significant error in the IANA listing of IS-IS TLVs at http://www.iana.org/assignments/isis-tlv-codepoints
I confirm the error. It seems to source from RFC 3359, which initially populated the registry.
In particular, both TLV #2 and TLV #6 are listed as "IIS Neighbors". I
believe that is correct for TLV #6 but that TLV #2 is the older IS
Reachability TLV ("narrow metric"). Should someone contact IANA to get
this fixed?
PS: Actually, to be persnickety, since the reference is ISP 10589,
looking there, I think TLV #6 is called "IS Neighbors" or
"Intermediate System Neighbors", not "IIS Neighbors".
TLV 6 is indeed "Intermediate System Neighbors" (see 9.6). However, TLV 2 is also "Intermediate System Neighbors" (see 9.8, 9.9).
I believe that the correct procedure here is for someone, in this case you, as discoverer, to contact IANA and inform them of the error. As the registry is managed under the 'expert review' process, they can contact their experts and have this confirmed and corrected.
I propose that the correction be to make them both "IS Neighbors". It's unfortunate that 10589 overloaded the term, but I believe that we're not in a position to correct that at this point.
Regards, Tony