What are two functions that are provided by the network layer?
The network layer is responsible for network addressing, routing, and the delivery of data packets from the source to the destination across multiple network segments.
It provides several functions to facilitate this process. Two important functions provided by the network layer are:
1. Addressing: The network layer assigns unique network addresses to devices connected to a network. These addresses, such as IP addresses, help to identify the source and destination of data packets. Network addresses can be hierarchical, allowing for efficient routing and scalability in large networks.
2. Routing: The network layer determines the best path for forwarding data packets from the source to the destination. It uses routing algorithms and protocols to make decisions about forwarding packets based on factors like network congestion, cost, and availability. The network layer’s routing functions ensure that data is delivered efficiently and reliably across interconnected networks.
These functions are crucial for establishing communication between devices in different networks, enabling data transfer and ensuring that packets are delivered to the correct destination.
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