network-layer_network
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Table of Contents
Source: https://www.geeksforgeeks.org/computer-networks/network-layer-in-osi-model/
The Network Layer
The Network Layer is the third layer from the bottom of OSI model. The layer is responsible for packet-forwarding including routing: it chooses the best path for the packet to travel. The network layer responds to service requests from the transport layer and issues service requests to the data link layer.
Functions
- Assigning Logical Address
- Packetizing
- Host-to-Host Delivery
- Forwarding
- Fragmentation and Reassembly
- Logical Subnetting
- Routing
Protocols
- IP
- ICMP
- ARP
- NAT
- Routing Protocols: RIP, OSPF, BGP
- IPSec
- MPLS
Devices
network-layer_network.1759588355.txt.gz · Last modified: by plida