Telnet randomly-lose option

　　NWG/RFC# 748 MRC 1-APR-78 44125

　　Telnet Randomly-Lose Option

　　Network Working Group M. Crispin

　　Request for Comments 748 SU-AI

　　NIC 44125 1 April 1978

　　TELNET RANDOMLY-LOSE Option

　　1. Command name and code.

　　RANDOMLY-LOSE 256

　　2. Command meanings.

　　IAC WILL RANDOMLY-LOSE

　　The sender of this command REQUESTS permission to, or confirms　that it will, randomly lose.

　　IAC WON'T RANDOMLY-LOSE

　　The sender of this command REFUSES to randomly lose.

　　IAC DO RANDOMLY-LOSE

　　The sender of this command REQUESTS that the receiver, or grants　the receiver permission to, randomly lose.

　　IAC DON'T RANDOMLY-LOSE

　　The command sender DEMANDS that the receiver not randomly lose.

　　3. Default.

　　WON'T RANDOMLY-LOSE

　　DON'T RANDOMLY-LOSE

　　i.e., random lossage will not happen.

　　4. Motivation for the option.

　　Several hosts appear to provide random lossage, such as system　crashes, lost data, incorrectly functioning programs, etc., as part　of their services. These services are often undocumented and are in　general quite confusing to the novice user. A general means is　needed to allow the user to disable these features.

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　　NWG/RFC# 748 MRC 1-APR-78 44125

　　Telnet Randomly-Lose Option

　　5. Description of the option.

　　The normal mode does not allow random lossage; therefore the system　is not allowed to crash, mung user files, etc. If the server wants　to provide random lossage, it must first ask for permission from the　user by sending IAC WILL RANDOMLY-LOSE.

　　If the user wants to permit the server to randomly lose, it replys　with IAC DO RANDOMLY-LOSE. Otherwise it sends IAC DONT　RANDOMLY-LOSE, and the server is forbidden from randomly losing.

　　Alternatively, the user could request the server to randomly lose, by　sending IAC DO RANDOMLY-LOSE, and the server will either reply with　IAC WILL RANDOMLY-LOSE, meaning that it will then proceed to do some　random lossage (garbaging disk files is recommended for an initial　implementation). Or, it could send IAC WONT RANDOMLY-LOSE, meaning　that it insists upon being reliable.

　　Since this is implemented as a TELNET option, it is expected that　servers which do not implement this option will not randomly lose;　ie, they will provide 100% reliable uptime.