HP Integrity NonStop H-Series - Manual (Page 140)

Table 15 TELNET Options Supported
Resulting Action Option
Discards all pending output and synchronizes the systems. AO (Abort Output)
Sends the message “[Yes]” to the client. AYT (Are You There)
Sends a BREAK message to the break owner of the
associated terminal. BREAK (Send Break)
Causes the client and server to synchronize with each other. DM (Data Mark)
Signifies that either the client or the server is asking the
other to use a certain option. DO (Do option)
Signifies that either the client or the server is requesting the
other not to use a certain option that the other was willing
to use. DONT (Dont option)
Erases the last character entered, unless that character has
already been consumed by a process that is using the
associated terminal. EC (Erase Character)
Erases the current line being entered. The result is the same
as typing a line-kill character. EL (Erase Line)
Sends a BREAK message to the break owner of the
associated terminal. IP (Interrupt Process)
Starts the negotiation of a sub-option. This option is
recognized but ignored. SB (Subnegotiation)
Signifies that either the client or the server is willing to use
a certain option. WILL (Will option)
Signifies that either the client or the server will not use an
option that the other asked it to use. WONT (Wont option)
The options negotiated using DO, DONT, WILL, and WONT are described in Table 16 :
Table 16 TELNET Options Negotiable Using DO, DONT, WILL, and WONT
Resulting Action Option
Signifies whether data is to be passed to the user process
with or without being interpreted. BINARY (Binary mode)
Signifies whether the client or server is willing or unwilling
to echo characters. ECHO (Echo characters)
Signifies whether the Go Ahead protocol is or is not
suppressed. (This option is used mainly for half-duplex
terminals.) SGA (Suppress Go Ahead)
140 Communicating With the TELNET Server