Internet Assigned Numbers Authority
  • Domains
  • Protocols
  • Numbers
  • About

                                                            Route Distinguisher Type Field

Created
        2005-02-15

Last Updated
        2015-05-15

Note

 Route Distinguishers are used to create VPN-IPv4 addresses, as specified
 in [RFC 4364]. The RDs are structured so that every service provider can
 administer its own "numbering space" (i.e., can make its own assignments
 of RDs), without conflicting with the RD assignmentsmade by any other
 service provider. An RD consists of three fields: a type field, an
 administrator field, and an assigned number field.

 The value of the type field determines the lengths of the other two fields,
 as well as the semantics of the administrator field. The administrator
 field identifies an assigned number authority, and the assigned number
 field contains a number which has been assigned, by the identified
 authority, for a particular purpose.


Available Formats
        [IMG]
        XML [IMG]
        HTML [IMG]
        TXT

Registry Included Below

  • Route Distinguisher Type Field

Route Distinguisher Type Field

Reference
        [RFC 4364]

Available Formats
        [IMG]
        CSV

   Range    Registration Procedures
0-32767     First Come First Served
32768-65535 IETF Review

Type Value                         Description                         Reference
    0      Administrator field is a two-byte Autonomous System Number  [RFC 4364]
    1      Administrator field is a four-byte IP Address               [RFC 4364]
    2      Administrator field is a four-byte Autonomous System Number [RFC 4364]
 3-65534   Unassigned
  65535    For Use Only in Certain Leaf A-D Routes                     [RFC 7524]

Licensing Terms