Network Working Group                                 Jonathan B. PostelRequest for Comments: 417                                 Chuck S. KlineNIC: 12574                                               6 November 1972                          LINK USAGE VIOLATION   We have noticed that TENEX systems use link numbers outside the   allowed range.  This is a violation of the official HOST-HOST   protocol.  This causes problems with some sites when attempting to   establish connections with TENEX systems.  We urge that this problem   be corrected by bringing all TENEX systems into conformance with the   established official protocol          [This RFC was put into machine readable form for entry]      [into the online RFC archives by Helene Morin, Via Genie 12/99]Postel & Kline                                                  [Page 1]