Telnet Echo Option
E707265
The Telnet Echo Option is a protocol extension that defines how character echoing is negotiated and handled between Telnet clients and servers to control what input is displayed to the user.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Telnet Echo Option canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8008986 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Telnet Echo Option Context triple: [RFC 857, title, Telnet Echo Option]
-
A.
Telnet
Telnet is a network protocol and command-line tool that allows users to remotely access and manage devices over a text-based terminal connection.
-
B.
RFC 854
RFC 854 is the foundational Internet standard that specifies the Telnet protocol for remote, text-based communication over TCP/IP networks.
-
C.
Netcat
Netcat is a versatile command-line networking utility used for reading from and writing to network connections, often referred to as the "Swiss Army knife" of TCP/IP.
-
D.
echo
echo is a standard Unix command-line utility that outputs its arguments as text, commonly used in shell scripts and command prompts.
-
E.
VT100 terminal
The VT100 terminal is a widely influential video display terminal introduced by Digital Equipment Corporation in the late 1970s, known for popularizing ANSI escape codes and becoming a de facto standard for text-based computer interfaces.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Telnet Echo Option Target entity description: The Telnet Echo Option is a protocol extension that defines how character echoing is negotiated and handled between Telnet clients and servers to control what input is displayed to the user.
-
A.
Telnet
Telnet is a network protocol and command-line tool that allows users to remotely access and manage devices over a text-based terminal connection.
-
B.
RFC 854
RFC 854 is the foundational Internet standard that specifies the Telnet protocol for remote, text-based communication over TCP/IP networks.
-
C.
Netcat
Netcat is a versatile command-line networking utility used for reading from and writing to network connections, often referred to as the "Swiss Army knife" of TCP/IP.
-
D.
echo
echo is a standard Unix command-line utility that outputs its arguments as text, commonly used in shell scripts and command prompts.
-
E.
VT100 terminal
The VT100 terminal is a widely influential video display terminal introduced by Digital Equipment Corporation in the late 1970s, known for popularizing ANSI escape codes and becoming a de facto standard for text-based computer interfaces.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
Telnet option
ⓘ
protocol extension ⓘ |
| appliesTo | TCP-based Telnet connections ⓘ |
| associatedWith |
Network Virtual Terminal
ⓘ
Telnet option negotiation ⓘ |
| category | application-layer protocol option ⓘ |
| controls |
character echoing
ⓘ
input display behavior ⓘ |
| definedBy | Jon Postel ⓘ |
| definedIn | RFC 857 ⓘ |
| determines | which side echoes characters ⓘ |
| goal |
to avoid double echoing of characters
ⓘ
to provide consistent echo semantics across systems ⓘ |
| hasOptionCode | 1 ⓘ |
| influences |
user interface behavior
ⓘ
user-perceived input latency ⓘ |
| negotiatesBetween | Telnet client and server ⓘ |
| negotiationModel | symmetrical capability negotiation ⓘ |
| partOf |
Telnet protocol
ⓘ
linked to:
Telnet
|
| publicationYear | 1983 ⓘ |
| purpose | to control what input is displayed to the user ⓘ |
| relatedTo |
Telnet Binary Transmission Option
ⓘ
Telnet Suppress Go Ahead Option ⓘ |
| relevantFor |
interactive character-at-a-time sessions
ⓘ
line-at-a-time sessions ⓘ |
| RFCNumber | RFC 857 ⓘ |
| standardType | Internet Standard ⓘ |
| status | standardized ⓘ |
| supportsMode |
local echo
ⓘ
remote echo ⓘ |
| transportLayerDependency |
TCP
ⓘ
linked to:
Transmission Control Protocol
|
| usedBy |
Telnet client
ⓘ
Telnet server ⓘ |
| usedFor |
password input handling
ⓘ
terminal-based applications ⓘ |
| usedIn |
legacy terminal access systems
ⓘ
remote login services ⓘ |
| usesTelnetCommand |
DO
ⓘ
DONT ⓘ WILL ⓘ WONT ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Telnet Echo Option Description of subject: The Telnet Echo Option is a protocol extension that defines how character echoing is negotiated and handled between Telnet clients and servers to control what input is displayed to the user.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.