Router and Routing Basics - TCP/IP Suite Error

IP is an unreliable method for delivery of network data. It is known as a best effort delivery mechanism. It has no built-in processes to ensure that data is delivered in the event that problems exist with network communication. If an intermediary device such as a router fails, or if a destination device is disconnected from the network, data cannot be delivered. Additionally, nothing in its basic design allows IP to notify the sender that a data transmission has failed. Internet Control Message Protocol (ICMP) is the component of the TCP/IP protocol stack that addresses this basic limitation of IP. ICMP does not overcome the unreliability issues in IP. Reliability must be provided by upper layer protocols if it is needed.
ICMP is an error reporting protocol for IP. When datagram delivery errors occur, ICMP is used to report these errors back to the source of the datagram.

Từ khóa: Routing Basics, TCP/IP Suite Error, Networking basics, mạng cơ bản, kỹ thuật mạng, công nghệ mạng, Cisco Networking