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Service in the Internet Protocol Suite
The Echo Protocol is a service in the Internet Protocol Suite defined in 1983 in RFC 862 by Jon Postel. It was originally proposed as a way to test and
Echo_Protocol
to a node. Adaptive Echo, Full Echo, and Half Echo can be chosen as several modes of the encrypted Echo protocol. The Echo protocol offers three modes
Echo (communications protocol)
Echo_(communications_protocol)
Network utility used to test the reachability of a host
Control Message Protocol (ICMP) packets. Pinging involves sending an ICMP echo request to the target host and waiting for an ICMP echo reply. The program
Ping_(networking_utility)
Computer networking protocol suite
and including support for searching. The AppleTalk Echo Protocol (AEP) was a transport layer protocol designed to test the reachability of network nodes
AppleTalk
WireGuard AppleTalk DECnet IPX/SPX Internet Protocol Suite OSI protocols Xerox Network Systems AEP AppleTalk Echo Protocol AH Authentication Header over IP or
List of network protocols (OSI model)
List_of_network_protocols_(OSI_model)
Topics referred to by the same term
Look up Echo, echo, or reecho in Wiktionary, the free dictionary. An echo is a reflection of sound. Echo may also refer to: Echo (DC Comics), various different
Echo_(disambiguation)
Internet protocol that provides the quote of the day
with ping and traceroute, which are more robust adaptations of the echo protocol (RFC 862), which predated the attempt at QOTD standardization. Graham
QOTD
Internet protocol used for error messages in network operations
implemented using the ICMP echo request and echo reply messages. ICMP uses the basic support of IP as if it were a higher-level protocol; however, ICMP is actually
Internet Control Message Protocol
Internet_Control_Message_Protocol
Service in the Internet Protocol Suite
13:45:51-PST List of well-known ports Echo Protocol QOTD Time Protocol Network Time Protocol RFC 867 List of NIST time servers supporting this protocol v t e
Daytime_Protocol
TELNET PROTOCOL SPECIFICATION May 1983 Telnet RFC 855 TELNET OPTION SPECIFICATIONS May 1983 RFC 862 Echo Protocol May 1983 Echo RFC 863 Discard Protocol May
List_of_RFCs
Network protocol for copying files between computers
Secure copy protocol (SCP) is a means of securely transferring computer files between a local host and a remote host or between two remote hosts. It is
Secure_copy_protocol
Internet protocol that discards all input
various routers, this TCP or UDP port 9 for the Discard Protocol (or port 7 for the Echo Protocol relaying ICMP datagrams) is also used by default as a
Discard_Protocol
Network protocol
protocol in the IPX/SPX protocol suite. IPX is derived from Xerox Network Systems' IDP. It also has the ability to act as a transport layer protocol.
Internetwork_Packet_Exchange
Service in the Internet Protocol Suite
internal time dgram udp wait root internal Echo Protocol Discard Protocol Daytime Protocol Character Generator Protocol rdate, a tool for querying the current
Time_Protocol
Monitoring MIB Protocol Identifier Macros. IETF. doi:10.17487/RFC2896. RFC 2896. Retrieved 2018-07-13. Postel, J. (May 1983). Echo Protocol. IETF. p. 1.
List of TCP and UDP port numbers
List_of_TCP_and_UDP_port_numbers
Mechanism to wake up computers via a network
number), 7 (Echo Protocol) or 9 (Discard Protocol), or directly over Ethernet using EtherType 0x0842. A connection-oriented transport-layer protocol like TCP
Wake-on-LAN
Voice command device from Amazon
Amazon Echo, often shortened to Echo, is a brand of smart speakers developed by Amazon. Echo devices connect to the voice-controlled intelligent personal
Amazon_Echo
Internet Protocol Suite service
[citation needed] Internet portal Barber pole Echo Protocol Discard Protocol QOTD Daytime Protocol Time Protocol "NVD - CVE-1999-0103". nvd.nist.gov. Retrieved
Character_Generator_Protocol
Early internetworking protocol
simple echo protocol at the internetwork layer, similar to IP's ping, but operating at a lower level. To establish a transport connection, two protocols came
PARC_Universal_Packet
Internet protocol
controllers. Echo request – not a part of RRCP protocol itself, but is closely associated, being an underlying mechanism for a Layer-2 analog of ICMP Echo request
Realtek Remote Control Protocol
Realtek_Remote_Control_Protocol
Group of communications protocols
GPRS Tunnelling Protocol (GTP) is a group of IP-based communications protocols used to carry general packet radio service (GPRS) within GSM, UMTS, LTE
GPRS_Tunnelling_Protocol
Network protocol
standard Matter (the combination being known as Matter over Thread), the protocol has seen increased use for connecting low-power and battery-operated smart-home
Thread_(network_protocol)
Web standards
used for web feeds, while the Atom Publishing Protocol (AtomPub or APP) is a simple HTTP-based protocol for creating and updating web resources. Web feeds
Atom_(web_standard)
TCP/IP application layer protocol
communication protocol designed for distributing, searching, and retrieving documents in Internet Protocol networks. The design of the Gopher protocol and user
Gopher_(protocol)
Topics referred to by the same term
superset of OpenGL ES 3.1 introduced by Google in 2014 AppleTalk Echo Protocol, a protocol designed to test the reachability of network nodes AEP Olympias
AEP
Suite of computer network protocols developed by Xerox
other protocol suites), remains in use today in other protocol suites, such as the Internet protocol suite. XNS also implements a simple echo protocol at
Xerox_Network_Systems
Principal protocol used to stream data across an IP network
The Transmission Control Protocol (TCP) is one of the main protocols of the Internet protocol suite, providing reliable, ordered, and error-checked delivery
Transmission_Control_Protocol
Methods of delivering voice communications and multimedia over IP networks
Internet Protocol (VoIP), also known as IP telephony, is a set of technologies used primarily for voice communication sessions over Internet Protocol (IP)
Voice_over_IP
following is a comparison of instant messaging protocols. It contains basic general information about the protocols. One-to-many/many-to-many communications
Comparison of instant messaging protocols
Comparison_of_instant_messaging_protocols
Display of data which has been transmitted
from the local modem. A displayed 'echo' is independent of 'duplex' (or any) telecommunications transmission protocol. Probably from technical ignorance
Echo_(computing)
Communications endpoint in an operating system
that use port numbers are the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP). The port completes the destination and origination
Port_(computer_networking)
Extension to the Internet Protocol to signal network congestion
congestion indication is handled by the upper layer protocol (transport layer protocol) and needs to be echoed back to the transmitting node in order to signal
Explicit Congestion Notification
Explicit_Congestion_Notification
Computer protocol
negotiate FISH protocol, its version and extensions. #FISH echo; start_fish_server; echo '### 200' #VER 0.0.2 <feature1> <feature2> <...> echo '### 000' The
Files transferred over shell protocol
Files_transferred_over_shell_protocol
Computer network protocol
communications protocol, providing a bidirectional communication channel over a single Transmission Control Protocol (TCP) connection. The protocol was standardized
WebSocket
Computer network diagnostic tool
ICMP Echo Request packets (-I), or any arbitrary protocol (-P) such as UDP, TCP using TCP SYN packets, or ICMP. On Windows, tracert sends ICMP Echo Request
Traceroute
Network protocol for virtual terminals
application protocol that provides access to virtual terminals of remote systems on local area networks or the Internet. It is a protocol for bidirectional
Telnet
Character used to start an escape sequence
syntax for many programming languages, data formats, and communication protocols. For a given alphabet an escape character's purpose is to start character
Escape_character
Specialized Internet application protocol
Constrained Application Protocol (CoAP) is a specialized UDP-based Internet application protocol for constrained devices, as defined in RFC 7252 (published
Constrained Application Protocol
Constrained_Application_Protocol
Dutch electronic music duo
Revealed Recordings "Astronaut" DOORN Records (Spinnin') with Ibranovski "Echo" Protocol Recordings "Rocket" Revealed Recordings with W&W "Legend Comes To Life"
Blasterjaxx
Attack on a computer system by pinging a computer
A correctly formed ICMP echo request is typically 56 bytes in size, or 64 bytes when the Internet Control Message Protocol (ICMP) header is considered
Ping_of_death
Internet protocol used for error messages in network operations
Control Message Protocol version 6 (ICMPv6) is the implementation of the Internet Control Message Protocol (ICMP) for Internet Protocol version 6 (IPv6)
ICMPv6
The standard protocol is ASCII with XON/XOFF flow control, using a 10-bit code (1 start bit, 7 data bits, even parity, 1 stop bit). No echo shall be employed
Telocator Alphanumeric Protocol
Telocator_Alphanumeric_Protocol
across packet networks using transport protocols such as Asynchronous Transfer Mode (ATM) and Internet Protocol (IP). Because the media gateway connects
Media_gateway
Communications protocol
Datagram Transport Layer Security (DTLS) is a communications protocol providing security to datagram-based applications by allowing them to communicate
Datagram Transport Layer Security
Datagram_Transport_Layer_Security
Communication protocol for streaming data over the Internet
Messaging Protocol (RTMP) is a communication protocol for streaming audio, video, and data over the Internet. Originally developed as a proprietary protocol by
Real-Time_Messaging_Protocol
Proposal to carry IP traffic by birds
echo request), and received four responses. Script started on Sat Apr 28 11:24:09 2001 $ /sbin/ifconfig tun0 tun0 Link encap:Point-to-Point Protocol inet
IP_over_Avian_Carriers
Mesh wireless network developed by Amazon
Amazon Sidewalk is a low-bandwidth long-range wireless communication protocol developed by Amazon. It uses Bluetooth Low Energy (BLE) for short distance
Amazon_Sidewalk
Connection between two remote computers
connection between two remote computers (a client and proxy), using ICMP echo requests and reply packets. An example of this technique is tunneling complete
ICMP_tunnel
Social platform
was developed as a reference implementation of the AT Protocol, an open communication protocol for distributed social networks. Bluesky Social promotes
Bluesky
Program that emulates a video terminal
echo mode and does not require local echo. When entering a password, for example, line-at-a-time entry with local editing is possible, but local echo
Terminal_emulator
Fault detection protocol
Bidirectional Forwarding Detection (BFD) is a network protocol that is used to detect faults between two routers or switches connected by a link. It provides
Bidirectional Forwarding Detection
Bidirectional_Forwarding_Detection
North Korean politician (1946–2013)
demonstrated during his 2012 visit to China: various aspects of the visit echoed protocol which had previously been followed only for Kim Jong Il, including
Jang_Song-thaek
Autocrypt is a cryptographic protocol for email clients aiming to simplify key exchange and enabling encryption. [citation needed] Version 1.0 of the Autocrypt
Autocrypt
American actress (born 1976)
Impossible, making appearances in Mission: Impossible III (2006), Ghost Protocol (2011), and Fallout (2018). On television, Monaghan starred in the first
Michelle_Monaghan
networking, the Link Control Protocol (LCP) forms part of the Point-to-Point Protocol (PPP), within the family of Internet protocols. In setting up PPP communications
Link_Control_Protocol
Network that allows computers to share resources and communicate with each other
known as hosts, which communicate data to other hosts via communication protocols, as facilitated by networking hardware. Within a computer network, hosts
Computer_network
Tool to measure bandwidth and response times between two hosts
response times between two hosts using Internet Control Message Protocol (ICMP) echo request/echo reply mechanism. It does not require any special software
BWPing
DF1 protocol is an asynchronous byte-oriented protocol that is used to communicate with most Allen Bradley RS-232 interface modules. DF1 protocol consists
DF-1_Protocol
Control center for a smart home
are: Homey Various communication protocols can be used between smart home hubs and smart house components. The protocols can be grouped into wired and wireless
Smart_home_hub
JSON-based wire protocol for remote procedure calls
{"method": "echo", "params": ["Hello JSON-RPC"], "id": 1} <-- {"result": "Hello JSON-RPC", "error": null, "id": 1} gRPC - cross-platform binary RPC protocol SOAP
JSON-RPC
Network protocol
GTP' (GTP prime) is an IP based protocol used within GSM and UMTS networks. It can be used with UDP or TCP. GTP' uses the same message structure as GTP
GTP'
Antisemitic symbol
the singular also referred to as an echo (similarly called or stylized as, in both print and digital text, an (((echo)))), are terms for an antisemitic
Triple_parentheses
Hollywood Reporter. 6 March 2026. Retrieved 7 March 2026. "Maria O'Brien, 'Protocol' and 'Matlock' Actress, Dies at 75". The Hollywood Reporter. 3 March 2026
2026_in_film
TLS extension to serve multiple HTTPS sites
listener, the server has no way to know which certificate to use in the TLS protocol. In more detail, when making a TLS connection, the client requests a digital
Server_Name_Indication
Type of cyber-attack
websites. In October 2023, exploitation of a new vulnerability in the HTTP/2 protocol resulted in the record for largest HTTP DDoS attack being broken twice
Denial-of-service_attack
Technical specification for firmware architecture
requiring the UEFI boot loader to support the EFI handover protocol. The EFI handover protocol allows UEFI boot loaders to defer the UEFI initialization
UEFI
Human-caused changes to climate on Earth
gas emissions than the Kyoto Protocol specifically designed to do so. The most recent amendment to the Montreal Protocol, the 2016 Kigali Amendment, committed
Climate_change
Open source, decentralized, mesh network
Meshtastic is a LoRa-based mesh networking protocol and software platform. The main goal of the project is enabling low-power, long-range communication
Meshtastic
2025 Android mobile operating system
Shell Cloud Storage Code Search Compute Engine Cpplint D–N Dalvik Data Protocol Data Studio Dialogflow Exposure Notification Fast Pair Fastboot Federated
Android_16
Smart-home connectivity standard
mesh protocol designed for battery-powered devices, which Matter uses as one of its supported transport layers X10 – a home automation protocol developed
Matter_(standard)
PHP driver for MySQL databases
Text protocol returns strings by default <?php $mysqli = new mysqli("example.com", "user", "password", "database"); if ($mysqli->connect_errno) { echo "Failed
MySQLi
Protocol and file format to list the URLs of a website
Sitemaps is a protocol in XML format meant for a webmaster to inform search engines about URLs on a website that are available for web crawling. It allows
Sitemaps
Web application framework by NextApp
Echo is a web application framework created by the company NextApp. The latest iteration, Echo3, allows writing applications in either server-side Java
Echo_(framework)
Cyberattack method based on Internet Protocol fragmentation
Destination Protocol Info 1 0.000000 87.247.163.96 66.94.234.13 ICMP Echo (ping) request 2 0.000000 87.247.163.96 66.94.234.13 IP Fragmented IP protocol (proto=ICMP
IP_fragmentation_attack
Cloud-based service and infrastructure
will become a block producer candidate for the EOS network and EOS.IO protocol. Currently the top block producers are cryptocurrency exchanges like OKEx
Google_Cloud_Platform
International treaties of war
series of four international treaties (1949) and their three additional protocols that form the core of international humanitarian law. They establish legal
Geneva_Conventions
Defunct Google database
Shell Cloud Storage Code Search Compute Engine Cpplint D–N Dalvik Data Protocol Data Studio Dialogflow Exposure Notification Fast Pair Fastboot Federated
Google_Base
Brand of smart laptops created by Google
Shell Cloud Storage Code Search Compute Engine Cpplint D–N Dalvik Data Protocol Data Studio Dialogflow Exposure Notification Fast Pair Fastboot Federated
Googlebook
San Francisco-based software company
platform includes an open data marketplace built on the Delta Sharing protocol, and functions as a managed AI infrastructure provider by providing proprietary
Databricks
Windowing system for bitmap displays on UNIX-like systems
Project Athena at Massachusetts Institute of Technology (MIT) in 1984. The X protocol has been at version 11 (hence "X11") since September 1987. The X.Org Foundation
X_Window_System
2023 Android mobile operating system
Shell Cloud Storage Code Search Compute Engine Cpplint D–N Dalvik Data Protocol Data Studio Dialogflow Exposure Notification Fast Pair Fastboot Federated
Android_14
Type of loudspeaker and voice command device
also act as smart home hubs by using Wi-Fi, Bluetooth, Thread, and other protocol standards to extend usage beyond audio playback and control home automation
Smart_speaker
similar protocol which ran over the Yellow Book Transport Service, which is another of the Coloured Book protocols. ITP (Interactive Terminal Protocol) was
Packet_assembler/disassembler
List of anthems of all FIFA World Cups
Diego Bollella Urtusastegui, Belinda Peregrín, Jota Rosa and Albert Hype "Echo" English Spanish Daddy Yankee and Shenseea Tainy, Ibrahim Maalouf, Massari
List of FIFA World Cup songs and anthems
List_of_FIFA_World_Cup_songs_and_anthems
after 323 live virus samples went missing in a major breach of biosecurity protocol at Virology Laboratory in 2021 in which vials of Hendra virus, lyssavirus
2024_in_Australia
Active computer network measurement technology
Hypertext Transfer Protocol (HTTP) GET File Transfer Protocol (FTP) downloads Domain Name System (DNS) lookups User Datagram Protocol (UDP) echo, for VoIP jitter
Service_Assurance_Agent
Computer expansion bus standard
limitation on concurrent access across multiple endpoints. In terms of bus protocol, PCI Express communication is encapsulated in packets. The work of packetizing
PCI_Express
British serial rapist (born 1957)
hours, where Worboys discussed his offending. The Risk of Sexual Violence Protocol was considered against Worboys, determining that he was low risk. This
John_Worboys
Routing protocol for multi-hop mobile ad hoc networks
change to a throughput-based metric. A new neighbor discovery protocol, the Echo Location Protocol (ELP), was introduced. Separating neighbor discovery from
B.A.T.M.A.N.
AI-assisted coding environment
Shell Cloud Storage Code Search Compute Engine Cpplint D–N Dalvik Data Protocol Data Studio Dialogflow Exposure Notification Fast Pair Fastboot Federated
Google_Antigravity
Palestinian militant and politician (1962–2024)
1981–1982 Fahd Plan 1991 Madrid Conference 1993–1995 Oslo Accords 1994 Paris Protocol 1994 Gaza–Jericho Agreement 1994–present US security assistance to the
Yahya_Sinwar
Director of the FBI since 2025
firings were retaliatory, potentially illegal, and in violation of FBI protocols that protect agents from political retribution. The alleged statements
Kash_Patel
Display server software
infrastructure used by Mir originate from Android. These parts include Google's Protocol Buffers, and previously included Android's input stack, which has since
Mir_(software)
Control technique for improving qubit coherence in quantum computing
system-environment coupling to zero. Different schemes exist for designing DD protocols that use realistic bounded-strength control pulses, as well as for achieving
Dynamical_decoupling
American social networking service
the research phase of Bluesky, an open source decentralized social media protocol where users can choose which algorithmic curation they want. The same year
X_(social_network)
Cloud-based spreadsheet software
Shell Cloud Storage Code Search Compute Engine Cpplint D–N Dalvik Data Protocol Data Studio Dialogflow Exposure Notification Fast Pair Fastboot Federated
Google_Sheets
Video-generating machine learning model
Shell Cloud Storage Code Search Compute Engine Cpplint D–N Dalvik Data Protocol Data Studio Dialogflow Exposure Notification Fast Pair Fastboot Federated
Veo_(text-to-video_model)
Character encoding standard
to/from its own native representation. The File Transfer Protocol adopted the Telnet protocol, including the Network Virtual Terminal, for transmitting
ASCII
Short-form section of video-sharing platform
Shell Cloud Storage Code Search Compute Engine Cpplint D–N Dalvik Data Protocol Data Studio Dialogflow Exposure Notification Fast Pair Fastboot Federated
YouTube_Shorts
Image-generating machine learning model
Shell Cloud Storage Code Search Compute Engine Cpplint D–N Dalvik Data Protocol Data Studio Dialogflow Exposure Notification Fast Pair Fastboot Federated
Imagen_(text-to-image_model)
ECHO PROTOCOL
ECHO PROTOCOL
Female
Egyptian
, the wife of Necho I. (?).
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Sindhi, Telugu
The Sound; The Echo
Boy/Male
Hindu, Indian
Image; Similar; Echo; Imitate
Female
Hebrew
(הֵד) Hebrew unisex name HED means either "shout of joy" or "echo."
Girl/Female
American, Christian, Greek, Indian
Return of Sound; Sound; Well Spoken; Echo; Re-sound
Girl/Female
Greek American
Sound. A mythological nymph who faded away until only her voice was left.
Girl/Female
Christian & English(British/American/Australian)
Return of Sound
Female
Japanese
Variant spelling of Japanese Chou, CHO means "butterfly."
Female
Greek
(Έχω) Greek name EKHO means "echo, re-sound." In mythology, this is the name of an Oread (mountain nymph) who was cursed by Hêrâ with the voice of the echo as punishment for distracting her with constant chatter.
Biblical
lame; beaten
Boy/Male
Indian, Sanskrit
Well Woven; Bloom; Echo
Boy/Male
British, English, French, Gujarati, Hindu, Indian, Indonesian
Wish; Desire
Female
English
Latin form of Greek Ekho, ECHO means "echo, re-sound." In mythology, this is the name of an Oread (mountain nymph) who was cursed by Hera with the voice of the echo as punishment for distracting her with constant chatter.Â
Biblical
(also Esho, Eshu and Isho in Assyrian/Aamaic) the Aramaic name of Jesus
Boy/Male
Muslim/Islamic
Concerning a) seeker or one eho covets
Female
Chamoru
, to give blessing.
Boy/Male
Biblical
Lame, beaten.
ECHO PROTOCOL
ECHO PROTOCOL
Male
French
French form of Latin Antonius, possibly ANTOINE means "invaluable."
Male
English
Habitational surname transferred to forename use, composed of the Old English elements bryne, BRENTON means "fire, flame," and tun "enclosure, settlement, town," hence "fire town."
Boy/Male
Indian, Tamil
Young Lord Murugan
Boy/Male
African, American, Arabic, Australian, British, Christian, English, Hebrew
Strength of God; The Memory of the Lord; The Lord has Remembered; God will Strengthen; Abbreviation of Ezekiel
Surname or Lastname
Scottish
Scottish : habitational name from a place in southern Scotland near Hawick, so named from Old English denu ‘valley’ + holm ‘piece of dry land in a fen’ (see Holme 2).English : habitational name from Denholme in West Yorkshire, so named from Old English denu ‘valley’ + Old Norse holmr ‘water meadow’.
Boy/Male
Hindu, Indian
Joined; Integration
Female
French
Feminine form of French Odilon, ODILE means "wealthy."
Female
English
Variant spelling of French Annette, ANETTE means "favor; grace."
Boy/Male
Hindu, Indian
Happy
Male
Russian
(Ðфонька) Pet form of Russian Afon, AFON'KA means "immortal."
ECHO PROTOCOL
ECHO PROTOCOL
ECHO PROTOCOL
ECHO PROTOCOL
ECHO PROTOCOL
n.
Return or repercussion, as of sound; echo.
v. i.
To give an echo; to resound; to be sounded back; as, the hall echoed with acclamations.
a.
Repeating; iterating; as, an iterant echo.
v. i.
To resound; to echo.
v. i.
To resound; to echo.
3d pers. sing. pres.
of Echo
a.
Without echo or response.
n.
A wood or mountain nymph, regarded as repeating, and causing the reverberation of them.
v. i.
To give back an echo.
p. pr. & vb. n.
of Echo
v. t.
To answer; to echo.
pl.
of Echo
v. t.
To echo.
imp. & p. p.
of Echo
v. t.
To send back (a sound); to repeat in sound; to reverberate.
n.
A nymph, the daughter of Air and Earth, who, for love of Narcissus, pined away until nothing was left of her but her voice.
v. t.
To repeat with assent; to respond; to adopt.
n.
Return of sound; echo.
n.
Fig.: Sympathetic recognition; response; answer.
n.
The echo of an echo; a repeated or second echo.