Are network layer addresses physical or logical?
Network layer addresses are logical addresses specific to the network layer protocol being run on the network. Each network layer protocol has a different addressing scheme. They are usually hierarchical and define networks first and then host or devices on that network. An example of a network address is an IP address, which is a 32-bit address often expressed in decimal format. 192.168.0.1 is an example of an IP address in decimal format. How do routers function at the network layer of the OSI model? Routers learn, record, and maintain awareness of different networks. They decide the best path to these networks and maintain this information in a routing table. The routing table includes the following: • Network addresses, which are protocol-specific. If you are running more than one protocol, you have a network address for each protocol. • The interface the router uses to route a packet to a different network. • A metric, which is the distance to a remote network or the weight of the
