Route Distinguisher Type Field

(last updated 2006-02-23)

Registries included below:
- Route Distinguisher Type Field

Note:
Route Distinguishers are used to create VPN-IPv4 addresses, as specified in
[RFC4364]. 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 assignments
made 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.


Registry Name: Route Distinguisher Type Field
Reference: [RFC4364]
Range        Registration Procedures           Notes
-----------  --------------------------------  -------------
0-32767      First Come First Served
32768-65535  IETF Consensus

Registry:
Type Value  Description                                                  Reference
----------  -----------------------------------------------------------  ---------
0           Administrator field is a two-byte Autonomous System Number   [RFC4364]
1           Administrator field is a four-byte IP Address                [RFC4364]
2           Administrator field is a four-byte Autonomous System Number  [RFC4364]
3-65535     Unassigned


References
----------
[RFC4364]   E. Rosen and Y.Rekhter, "BGP/MPLS IP VPNs", RFC 4364, February 2006.

(created 2005-02-15)

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