9. OSPF Flexible Algorithm Include-Any Reverse Admin Group Sub-TLV

This section preserves the RFC text for IGP Flex-Algorithm reverse affinity constraints, including FAERAG, FAD, IS-IS and OSPF Sub-TLVs, reverse Administrative Groups, IANA registrations, and path pruning rules.

Original RFC Text

9.  OSPF Flexible Algorithm Include-Any Reverse Admin Group Sub-TLV

   The OSPF Flexible Algorithm Include-Any Reverse Admin Group Sub-TLV
   is used to advertise the include-any rule that is used during the
   Flex-Algorithm path calculation as specified in Section 11.

   The format of the OSPF Flexible Algorithm Include-Any Reverse Admin
   Group Sub-TLV is identical to the format of the OSPF FAERAG Sub-TLV
   in Section 8.

   IANA has assigned Type value of 11 for the OSPF Flexible Algorithm
   Include-Any Reverse Admin Group Sub-TLV.

   The OSPF Flexible Algorithm Include-Any Reverse Admin Group Sub-TLV
   MUST NOT appear more than once in an OSPF FAD TLV.  If it appears
   more than once, the OSPF FAD TLV MUST be ignored by the receiver.