Uniform Resource Name (URN) Namespace for IETF Use
2003-05-19
2026-02-02
This is the official registry for the 'params' section of the 'IETF'
URN Namespace.
IETF URN Sub-namespaces
IETF Review
rfc
none
fyi
none
std
none
bcp
none
id
none
mtg
none
params
IETF URN Sub-namespace for Registered Protocol Parameter Identifiers
IETF Review
xml
cpim-headers
ecml
imdn
sieve
oauth
gss
netconf
rtp-hdrext
geopriv
scim
tzdist
abfab
push
restconf
mud
rolie
acme
jmap
RFC8620, Section 9.4
capport:unrestricted
trans
whip
unit
Combining the symbol values from the SenML Units registry and the Secondary Units registry in the Sensor Measurement Lists (SenML) registry group as specified by Sections 4.5.2 and 12.1 of and Section 3 of , respectively (which, by the registration policy, are guaranteed to be non-overlapping).