Telnet Status Option
E708919
The Telnet Status Option is a protocol extension defined in RFC 858 that allows a Telnet server to report its current status and options in use to a client.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Telnet Status Option canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8035982 — 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 Status Option Context triple: [RFC 858, title, Telnet Status 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.
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.
-
D.
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.
-
E.
NPN (Next Protocol Negotiation)
NPN (Next Protocol Negotiation) is a now-deprecated TLS extension that allowed a client and server to agree on which application-layer protocol (such as SPDY or HTTP/2) to use over a secure connection.
- 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 Status Option Target entity description: The Telnet Status Option is a protocol extension defined in RFC 858 that allows a Telnet server to report its current status and options in use to a client.
-
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.
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.
-
D.
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.
-
E.
NPN (Next Protocol Negotiation)
NPN (Next Protocol Negotiation) is a now-deprecated TLS extension that allowed a client and server to agree on which application-layer protocol (such as SPDY or HTTP/2) to use over a secure connection.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
Telnet option
ⓘ
protocol extension ⓘ |
| allows |
Telnet server to report current status
ⓘ
Telnet server to report options in use ⓘ |
| belongsTo |
TCP/IP protocol suite
ⓘ
linked to:
TCP/IP
|
| category | application-layer protocol mechanism ⓘ |
| definedIn | RFC 858 ⓘ |
| documentType | Internet Standard ⓘ |
| hasIACSequencePrefix | 255 ⓘ |
| hasKeyword |
IS
ⓘ
SEND ⓘ STATUS ⓘ |
| hasOptionCode | 5 ⓘ |
| hasOptionKind | status reporting ⓘ |
| hasRFCNumber | 858 ⓘ |
| hasSubcommand |
IS
ⓘ
SEND ⓘ |
| intendedFor | interactive terminal sessions ⓘ |
| layer | application layer ⓘ |
| negotiatedWithCommand |
IAC DO
ⓘ
IAC DONT ⓘ IAC WILL ⓘ IAC WONT ⓘ |
| partOfProtocol | Telnet ⓘ |
| relatedTo |
Telnet Option Negotiation
ⓘ
Telnet protocol ⓘ
linked to:
Telnet
|
| reports |
current Telnet connection status
ⓘ
current Telnet options state ⓘ |
| specifiedBy | Internet Engineering Task Force ⓘ |
| standardizedIn | December 1983 ⓘ |
| status | Standard ⓘ |
| transportProtocol |
TCP
ⓘ
linked to:
Transmission Control Protocol
|
| triggeredBy | client request for status ⓘ |
| usedBetween |
Telnet client
ⓘ
linked to:
Telnet
Telnet server ⓘ |
| usedFor |
debugging Telnet sessions
ⓘ
diagnostics ⓘ monitoring Telnet options ⓘ |
| usesSubnegotiationCommand |
IAC SB
ⓘ
IAC SE ⓘ |
| usesTCPPort | 23 ⓘ |
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 Status Option Description of subject: The Telnet Status Option is a protocol extension defined in RFC 858 that allows a Telnet server to report its current status and options in use to a client.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.