グレーのバックは、後発のRFCにより廃棄されたことを示す。

(原典:rfc-index.txt, std-index.txt

STD0055 : Multiprotocol Interconnect over Frame Relay
RFC2427 Multiprotocol Interconnect over Frame Relay C. Brown
A. Malis
Obsoletes RFC1490
RFC1294
September 1998 TXT=74671 bytes STANDARD
RFC1490 Multiprotocol Interconnect over Frame Relay T. Bradley
C. Brown
A. Malis
Obsoletes RFC1294
Obsoleted by RFC2427
July 1993 TXT=75206 bytes DRAFT STANDARD
RFC1294 Multiprotocol Interconnect over Frame Relay T. Bradley
C. Brown
A. Malis
Obsoleted by RFC1490
RFC2427
January 1992 TXT=54992 bytes PROPOSED STANDARD