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 ETSI URN Namespace


ETSI maintains a namespace registry based on URNs in support of the specifications produced by ETSI. The ETSI registry allocates these URNs based upon a reserved NID ('etsi'). See RFC8515 for the document which reserved this NID.

All URNs in the ETSI URN namespace will have the following structure:



The "etsi-urn" will have the following structure:




where "nss-root" are the nodes allocated under ETSI URN namespace as defined in Table 1 and "nss-restoftree" is the rest of tree that has one or more strings each separated with a colon ":"

Procedure for requesting an "etsi-urn" under ETSI URN namespace

Applications for new "etsi-urn", using one of the NSS-Roots (excluding experimental) specified in table 1, shall be addressed to the ETSI group in charge of the given NSS-Root. Each ETSI group may have a different policy for the allocation of "etsi-urn". Please, see the corresponding application details indicated in the Table 1.


URNs within experimental is for those modules that are not expected to be used in any published work. So, there is no need to submit a request for such URNs. There is no capture of any URNs under experimental.


When a URN application implies the creation of a new node under ETSI URN namespace, then an application shall be submitted from the ETSI group to include the following:

• ETSI group
• Node name(s) to be created
• Reference to the urn application procedure for the given group (i.e. a link, a document, etc..)
• Reference to the location where the NSS-restoftree is available

Table 1. NSS-Roots

Structure NSS-Root urn:NID:NSS-Root  ETSI group Application details reference NSS-restoftree reference
 nfv-nss  "nfv"  urn:etsi:nfv  ISG NFV NFV URN application NFV rest of tree
 osm-nss  "osm" urn:etsi:osm  OSM OSM URN application details OSM Rest of tree
 qkd-nss  "qkd" urn:etsi:qkd ISG QKD ISG QKD application ISG QKD rest of tree
 mec-nss  "mec" urn:etsi:mec ISG MEC ISG MEC application ISG MEC rest of tree
 li-nss  "li" urn:etsi:li TC LI TC LI application TC LI rest of tree
 experimental-nss  "example"  urn:etsi:example  - For experimental use  




i.e. a string starts with an alphanumeric (a-zA-Z0-9) and has 0 or more mix alphanumeric (a-zA-Z0-9) or hyphen or underscore.