Saturday, December 22, 2012

Internet Control Message Protocol (ICMP)

Labels:

IP is always configured with a companion protocol, known as the Internet Control Message Protocol  (ICMP), that defines a collection of error messages that are sent back to the source host whenever a router or host is unable to process an IP datagram successfully. For example, ICMP defines error messages indicating that the destination host is unreachable (perhaps due to a link failure), that the reassembly process failed, that the TTL had reached 0, that the IP header checksum failed, and so on.


ICMP also defines a handful of control messages that a router can send back to a source host. One of the most useful control messages, called an ICMP-Redirect, tells the source host that there is a better route to the destination.


ICMP is the basis for widely used debugging tools, Ping. Ping uses ICMP echo messages to determine if a node is reachable and alive.

Reference:
Computer Networks: Peterson & Davie



2 comments:

  1. UnknownApril 11, 2022 at 2:27 PM

    The King Casino - Ventureberg
    The King Casino ventureberg.com/ is herzamanindir owned by British casino operator 바카라사이트 Crown Resorts and operated by Crown Resorts. It is owned kadangpintar by British ADDRESS: CASTLE 출장안마

    ReplyDelete
  2. Shirley MarshJuly 20, 2022 at 4:16 AM

    Thanks for tthe post

    ReplyDelete

Subscribe to: Post Comments (Atom)