Group of internetworking methods in the TCP/IP suite
Internet protocol suite
Application layer
BGP
DHCP (v6)
DNS
FTP
HTTP (HTTP/3)
HTTPS
IMAP
IRC
LDAP
MGCP
MQTT
NNTP
NTP
OSPF
POP
PTP
ONC/RPC
RTP
RTSP
RIP
SIP
SMTP
SNMP
SSH
Telnet
TLS/SSL
XMPP
more...
Transport layer
TCP
UDP
DCCP
SCTP
RSVP
QUIC
more...
Internet layer
IP
v4
v6
ICMP (v6)
NDP
ECN
IGMP
IPsec
more...
Link layer
ARP
Tunnels
PPP
MAC
more...
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The internet layer is a group of internetworking methods, protocols, and specifications in the Internet protocol suite that are used to transport network packets from the originating host across network boundaries; if necessary, to the destination host specified by an IP address. The internet layer derives its name from its function facilitating internetworking, which is the concept of connecting multiple networks with each other through gateways.
The internet layer does not include the protocols that fulfill the purpose of maintaining link states between the local nodes and that usually use protocols that are based on the framing of packets specific to the link types. Such protocols belong to the link layer. Internet-layer protocols use IP-based packets.
A common design aspect in the internet layer is the robustness principle: "Be liberal in what you accept, and conservative in what you send"[1] as a misbehaving host can deny Internet service to many other users.
^R. Braden, ed. (October 1989). Requirements for Internet Hosts -- Communication Layers. Network Working Group. doi:10.17487/RFC1122. STD 3. RFC 1122. Internet Standard 3. Updated by RFC 1349, 4379, 5884, 6093, 6298, 6633, 6864, 8029 and 9293.
The internetlayer is a group of internetworking methods, protocols, and specifications in the Internet protocol suite that are used to transport network...
the layers are the link layer, containing communication methods for data that remains within a single network segment (link); the internetlayer, providing...
layer and issues service requests to the data link layer. Functions of the network layer include: Connectionless communication For example, Internet Protocol...
networking, the link layer is the lowest layer in the Internet protocol suite, the networking architecture of the Internet. The link layer is the group of...
hosts in a communications network. An application layer abstraction is specified in both the Internet Protocol Suite (TCP/IP) and the OSI model. Although...
the transport layer is a conceptual division of methods in the layered architecture of protocols in the network stack in the Internet protocol suite...
The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries...
The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers...
transport layer. The internetlayer performs functions as those in a subset of the OSI network layer. The link layer corresponds to the OSI data link layer and...
network-layer protocol; this makes it a layer 3 protocol in the seven-layer OSI model. Based on the four-layer TCP/IP model, ICMP is an internet-layer protocol...
In computer networking, Layer 2 Tunneling Protocol (L2TP) is a tunneling protocol used to support virtual private networks (VPNs) or as part of the delivery...
protocol used for discovering the link layer address, such as a MAC address, associated with a given internetlayer address, typically an IPv4 address. This...
Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network. The protocol is widely...
these layers are the networking technologies that interconnect networks at their borders and exchange traffic across them. The Internetlayer implements...
application-layer protocols need little or no change to operate over IPv6; exceptions are application protocols that embed Internet-layer addresses, such...
with IP protocol number 2.: §4 Similar to the Internet Control Message Protocol, there is no transport layer used with IGMP messaging. Where: Type Indicates...
and enables internetworking at the internetlayer of the Internet Protocol Suite. In essence it forms the Internet. It uses a logical addressing system...
The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol used by network devices for advertising their identity, capabilities,...
protocols to the layers of the two schemes. The layering scheme from the IETF is called Internetlayering or TCP/IP layering. The layering scheme from ISO...
ISBN 978-0-470-17560-6. CCNA Exploration 4.0 5.0 Routing Protocols and Concepts Student Lab Manual. Cisco Press. The ISO model is used for layer names....
Messaging Layer Security (MLS) is a security layer for end-to-end encrypting messages in arbitrarily sized groups. It is maintained by the MLS working...
Interface (FDDI) – Internetlayer – Internet Protocol (IP) – IPv4 – IPv6 – Internet Control Message Protocol (ICMP) – ICMPv6 – Internet Group Management...
provide support for both IMAP and POP3. The Internet Message Access Protocol is an application layerInternet protocol that allows an e-mail client to access...
a network service is an application running at the network application layer and above, that provides data storage, manipulation, presentation, communication...
of the higher-level transport layer protocol, but may be data for an internetlayer (e.g., ICMP or ICMPv6) or link layer (e.g., OSPF) instead. Two different...
used on the Internet. In HTTPS, the communication protocol is encrypted using Transport Layer Security (TLS) or, formerly, Secure Sockets Layer (SSL). The...
units for connectionless communication. A layer lower in the Internet protocol suite, at the Internetlayer, the PDU is called a packet, irrespective...
used in the link layer (layer 2 in the OSI model), such as Ethernet multicast, and at the internetlayer (layer 3 for OSI) for Internet Protocol Version...
about the internal structures of IP: any network layer protocols can be sent over the wire. "Internet Q&A". The New York Times. May 31, 1996. "The Executive...
Internet Control Message Protocol version 6 (ICMPv6) is the implementation of the Internet Control Message Protocol (ICMP) for Internet Protocol version...
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