Internet Assigned Numbers Authority Open Shortest Path First (OSPF) Multi-Topology Routing Created 2007-06-04 Last Updated 2013-05-28 Available Formats [IMG] XML [IMG] HTML [IMG] Plain text Registry included below * Multi-Topology ID Values Multi-Topology ID Values Reference [RFC4915] Available Formats [IMG] CSV Range Registration Procedures Note 0-2 Reserved IANA does not assign 3-31 IETF Review 32-127 Reserved IANA does not assign 128-255 Reserved IANA does not assign Value Name Reference 0 Reserved for advertising the metric associated with the default topology (see Section 4.2) [RFC4915] 1 Reserved for advertising the metric associated with the default multicast topology [RFC4915] 2 Reserved for IPv4 in-band management purposes [RFC4915] 3-31 Unassigned [RFC4915] 32-127 Reserved for development, experimental and proprietary features [RFC4915][RFC3692] 128-255 Invalid and SHOULD be ignored [RFC4915] Licensing Terms