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E-mail: Ouyang@china-pub.com
Translator: Gu Guofei (GGFEI GGFEI@263.net)
Translation time: 2001-4-2
Copyright: This Chinese translation copyright belongs to China Interactive Publishing Network. Can be used for non-commercial use free reprint, but the translation and copyright information of this document must be retained.
Network Working Group J. Postel
Request for Comments: 859 J. Reynolds
ISI
Obsoletes: RFC 651 (NIC 31154) May 1983
RFC 859 Telnet Status Options
(RFC 859 Telnet Status Option)
This RFC specifies the standards on ARPA Internet Community. All hosts on the ARPA Internet should adopt and implement this standard.
table of Contents
Command and code 2
2. Command meaning 2
3. Default 2
4. The reason for the option 2
5. Specific content 2
Command and code
STATUS 5
2. Command meaning
This option is used in different convenient data streams.
* Iac Don't status
The sender refuses to provide further information on the current status option.
* Iac Won't status
The sender refuses to provide further information on the current status option.
* IAC SB Status Send Iac SE
The sender requires the recipient to return its current option status.
* Iac Sb Status Is ... IAC SE
The sender explains its own option status.
3. Default
Don't status and Won't status are default.
4. The reason for the option
This option allows the user / process to remotely view the Telnet option.
5. Specific content
Will and DO are only used to obtain licenses for future negotiation. The actual status information is transmitted by the subcommand below.
Once the two host exchanges WILL and DO, Will Status's sender can transmit status information or respond to DO. Two status information will be transmitted when the worst. Only DO's transmitter can issue a request, only WILL's sender can transmit status information.
IS has subcommands WILL, DO, and SB, which are used in the TELENT options in the actual negotiation process, where SB ends in SE instead of IAC SE. When the SE is transmitted, it is transmitted twice as in the usual data byte. If the options are not illustrated, they are considered to be in the default state.
Below is an example of using an option:
Host1: Iac Do Status
Host2: IAC Will Status (at this point Host2 can send status information, then send two times when you are worse)
Host1 (Perhaps): IAC SB Status Send Iac SE
Host2 (below the information is divided into more lines to read convenience)
Iac Sb Status IS
Will echo
Do Suppress-Go-ahead
Will Status
Do Status
Iac SE
Interpretation of Host2 Understanding: Echo Back, the data character received from the Telnet connection is reasonable; it does not send Go-ahead signal, it will send and request STATUS information. RFC859 Telnet Status Option RFC859 Telnet stat STATUS option
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