Network Working Group J. Postel Request for Comments: 860 J. Reynolds ISI Obsoletes: NIC 16238 May 1983 TELNET TIMING MARK OPTION This RFC specifies a standard for the ARPA community. Hosts on the ARPA Internet are expected to adopt and implement this standard. 1. Command Name and Code TIMING-MARK 6 2. Command Meanings IAC DO TIMING-MARK The sender of this command REQUESTS that the receiver of this command return a WILL TIMING-MARK in the data stream at the "appropriate place" as defined in section 4 below. IAC WILL TIMING-MARK The sender of this command ASSURES the receiver of this command that it is inserted in the data stream at the "appropriate place" to insure synchronization with a DO TIMING-MARK transmitted by the receiver of this command. IAC WON'T TIMING-MARK The sender of this command REFUSES to insure that this command is inserted in the data stream at the "appropriate place" to insure synchronization. IAC DON'T TIMING-MARK The sender of this command notifies the receiver of this command that a WILL TIMING-MARK (previously transmitted by the receiver of this command) has been IGNORED. 3. Default WON'T TIMING-MARK, DON'T TIMING-MARK i.e., No explicit attempt is made to synchronize the activities at the two ends of the TELNET connection. 4. Motivation for the Option Postel & Reynolds