!!! Overview [{$pagename}] is a classification of the [Request For Comment] publications [{$pagename}] contains three sub-series: * [BCP] - [Best Current Practice]; mandatory [IETF] [RFCs] not on standards track, see below. * [FYI] - __([OBSOLETE])__ For Your Information; [informational] [RFCs] promoted by the IETF as specified in [RFC 1150] ([FYI 1]). In 2011, [RFC 6360] [obsoleted] [FYI 1] and concluded this [{$pagename}]. * [STD] - [Internet Standard]; this used to be the third and highest maturity level of the IETF standards track specified in [RFC 2026] ([BCP 9]). In 2011 [RFC 6410] (a new part of [BCP 9]) reduced the standards track to two maturity levels. !! More Information There might be more information for this subject on one of the following: [{ReferringPagesPlugin before='*' after='\n' }]