ICMP Timestamp

ICMP Timestamp

The Timestamp is an ICMP message which is used for time synchronization. It consists of the originating timestamp.

Message Format:

  • Type must be set to 13.
  • Code must be set to 0.
  • The Identifier and Sequence Number can be used by the client to match the timestamp reply with the timestamp request.
  • The data transmitted (originate timestamp) in the timestamp is 32 bits in length and is the number of milliseconds since midnight UT.

  • If the time is not available in milliseconds or cannot be provided with respect to midnight UT then any time can be inserted in a timestamp provided the high order bit of the timestamp is also set to indicate this non-standard value.

ee also

* ICMP Timestamp Reply


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • ICMP Timestamp Reply — The Timestamp Reply is an ICMP message which replies to a Timestamp message. It consists of the originating timestamp sent by the sender of the Timestamp as well as a receive timestamp and a transmit timestamp.Message Format:Type must be set to… …   Wikipedia

  • Timestamp — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Un timestamp est une séquence de caractère qui contient suffisamment d information, la plupart du temps une date et une heure, pour situer un événement… …   Wikipédia en Français

  • Timestamp — es una secuencia de caracteres, que denotan la hora y fecha (o alguna de ellas) en la cual ocurrió determinado evento. Esta información es comúnmente presentada en un formato consistente, lo que permite la fácil comparación entre dos diferentes… …   Wikipedia Español

  • Timestamp — A timestamp is a sequence of characters, denoting the date and/or time at which a certain event occurred. This data is usually presented in a consistent format, allowing for easy comparison of two different records and tracking progress over… …   Wikipedia

  • ICMP — Internet Control Message Protocol Pile de protocoles 7 • Application 6 • Présentation 5 • Session 4 • …   Wikipédia en Français

  • Horodatation — Timestamp Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Un timestamp est une séquence de caractère qui contient suffisamment d information, la plupart du temps une date et une heure, pour situer un… …   Wikipédia en Français

  • Horodatage — L horodatage (en anglais timestamping) est un mécanisme qui consiste à associer une date et une heure à un événement, une information ou une donnée informatique. Il a généralement pour but d enregistrer l instant auquel une opération a été… …   Wikipédia en Français

  • Network Time Protocol — The Network Time Protocol (NTP) is a protocol and software implementation for synchronizing the clocks of computer systems over packet switched, variable latency data networks. Originally designed by David L. Mills of the University of Delaware… …   Wikipedia

  • Cristian's algorithm — (introduced by Flaviu Cristian in 1989)[1] is a method for clock synchronisation which can be used in many fields of distributive computer science but is primarily used in low latency intranets. Cristian observed that this simple algorithm is… …   Wikipedia

  • Ping sweep — A Ping sweep is a technique used to determine which of a range of IP addresses map to live hosts. It consists of ICMP ECHO requests sent to multiple hosts. If a given address is live, it will return an ICMP ECHO reply.A ping is often used to… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”