Telnet Timing Mark Option
E715236
The Telnet Timing Mark Option is a protocol extension that allows a Telnet client and server to coordinate and measure end-to-end transmission delays by inserting special timing mark commands into the data stream.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Telnet Timing Mark Option canonical | 2 |
| Telnet Timing Mark option | 1 |
| Telnet option negotiation for Timing Mark | 1 |
| Telnet protocol | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8158584 — 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 Timing Mark Option Context triple: [RFC 860, title, Telnet Timing Mark Option]
-
A.
Telnet Status Option
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.
-
B.
Telnet Echo Option
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.
-
C.
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.
-
D.
RFC 854
RFC 854 is the foundational Internet standard that specifies the Telnet protocol for remote, text-based communication over TCP/IP networks.
-
E.
Standard for the Format of ARPA Internet Text Messages
Standard for the Format of ARPA Internet Text Messages is the seminal specification that defined the syntax and structure of electronic mail messages on the early ARPANET, forming the basis for modern Internet email formats.
- 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 Timing Mark Option Target entity description: The Telnet Timing Mark Option is a protocol extension that allows a Telnet client and server to coordinate and measure end-to-end transmission delays by inserting special timing mark commands into the data stream.
-
A.
Telnet Status Option
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.
-
B.
Telnet Echo Option
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.
-
C.
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.
-
D.
RFC 854
RFC 854 is the foundational Internet standard that specifies the Telnet protocol for remote, text-based communication over TCP/IP networks.
-
E.
Standard for the Format of ARPA Internet Text Messages
Standard for the Format of ARPA Internet Text Messages is the seminal specification that defined the syntax and structure of electronic mail messages on the early ARPANET, forming the basis for modern Internet email formats.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Telnet option
ⓘ
protocol extension ⓘ |
| appliesTo | interactive terminal sessions ⓘ |
| author | Jon Postel ⓘ |
| belongsToProtocolSuite | TCP/IP ⓘ |
| category | application-layer protocol feature ⓘ |
| commandPrefix | IAC ⓘ |
| definedIn | RFC 860 ⓘ |
| hasAbbreviation | TM ⓘ |
| hasFunction |
allow correlation of user input with server response time
ⓘ
allow measurement of round-trip delay ⓘ insert special timing mark commands into the data stream ⓘ |
| hasName | Timing Mark ⓘ |
| hasNumericValue | Telnet option number 6 ⓘ |
| hasOptionCode | 6 ⓘ |
| hasPurpose |
coordinate end-to-end transmission delay measurement
ⓘ
measure interactive response time ⓘ support performance measurement over Telnet connections ⓘ |
| hasRFCTitle | Telnet Timing Mark Option ⓘ |
| insertsInto | Telnet data stream ⓘ |
| introduced | 1983 ⓘ |
| isObsoletedBy | modern performance measurement tools ⓘ |
| layer | application layer ⓘ |
| measurementType | end-to-end transmission delay ⓘ |
| negotiatedUsing | Telnet option negotiation mechanism ⓘ |
| operatesBetween |
Telnet client
ⓘ
linked to:
Telnet
Telnet server ⓘ |
| partOf |
Telnet protocol
ⓘ
linked to:
Telnet Timing Mark Option
|
| relatedTo |
Telnet Echo Option
ⓘ
Telnet protocol options ⓘ |
| requires | support from both Telnet client and Telnet server ⓘ |
| securityConsideration |
can reveal timing characteristics of a connection
ⓘ
does not provide encryption ⓘ |
| standardizedBy |
IETF
ⓘ
linked to:
Internet Engineering Task Force
|
| status | historic ⓘ |
| usedFor |
interactive session tuning
ⓘ
network delay analysis ⓘ performance diagnostics ⓘ |
| usesCommand |
IAC DO TIMING-MARK
ⓘ
IAC DONT TIMING-MARK ⓘ IAC TIMING-MARK ⓘ IAC WILL TIMING-MARK ⓘ IAC WONT TIMING-MARK ⓘ |
| usesTransportProtocol |
TCP
ⓘ
linked to:
Transmission Control Protocol
|
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 Timing Mark Option Description of subject: The Telnet Timing Mark Option is a protocol extension that allows a Telnet client and server to coordinate and measure end-to-end transmission delays by inserting special timing mark commands into the data stream.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Telnet Timing Mark Option
linked to: Telnet Timing Mark Option