From 4bfd864f10b68b71482b35c818559068ef8d5797 Mon Sep 17 00:00:00 2001 From: Thomas Voss Date: Wed, 27 Nov 2024 20:54:24 +0100 Subject: doc: Add RFC documents --- doc/rfc/rfc1926.txt | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 doc/rfc/rfc1926.txt (limited to 'doc/rfc/rfc1926.txt') diff --git a/doc/rfc/rfc1926.txt b/doc/rfc/rfc1926.txt new file mode 100644 index 0000000..37ef361 --- /dev/null +++ b/doc/rfc/rfc1926.txt @@ -0,0 +1,115 @@ + + + + + + +Network Working Group J. Eriksson +Request for Comments: 1926 KTH NOC +Category: Informational 1 April 1996 + + + An Experimental Encapsulation of IP Datagrams on Top of ATM + +Status of this Memo + + This memo provides information for the Internet community. This memo + does not specify an Internet standard of any kind. Distribution of + this memo is unlimited. + +Abstract + + This RFC describes a method of encapsulating IP datagrams on top of + Acoustical Transmission Media (ATM). This is a non-recommended + standard. Distribution of this memo is unnecessary. + +Overview + + The modern laptop computer of today often contains the hardware + needed to perform wireless communications by using Acoustical + Transmission Media, i.e. sound waves. Until this moment there has + been no standard on how to run IP on such media. This document is an + attempt to fill this silence. + +Frame transmission + + The IP datagram is divided into four-bit chunks, in network beep + order, and converted to characters according to the table below. A + single "b" character is prepended as a frame start signal, the + characters are then transmitted in ordinary morse code by modulating + a steady tone on and off. The frequency of this tone is also known + as the Acoustical Signature (AS number) of the sender. + + Bits Character Bits Character + + 0000 "i" 1000 "u" + 0001 "t" 1001 "m" + 0010 "s" 1010 "v" + 0011 "a" 1011 "f" + 0100 "n" 1100 "w" + 0101 "h" 1101 "l" + 0110 "d" 1110 "k" + 0111 "r" 1111 "g" + + + + + +Eriksson Informational [Page 1] + +RFC 1926 IP over ATM 1 April 1996 + + + To allow more than one Local Acoustical Network (LAN) to coexist the + use of different AS numbers for different LANs is suggested. This + document proposes seven standard AS numbers to be used, see the table + below for details. + + Name Frequency + + "a" 440 Hz + "b" 494 Hz + "c" 523 Hz + "d" 587 Hz + "e" 659 Hz + "f" 698 Hz + "g" 784 Hz + + It is assumed that for normal operation AS number "a", 440 Hz will be + used. + +Frame reception + + The above process is simply performed backwards. + +Security Considerations + + The author assumes that the users take whatever precautions that are + necessary before attempting to use this protocol in any crowded area. + +Author's Address + + Johnny Eriksson + KTH NOC + EMail: bygg@sunet.se + + or + + -... -.-- --. --. @ ... ..- .- . - .-.-.- ... . + + + + + + + + + + + + + + + +Eriksson Informational [Page 2] + -- cgit v1.2.3