University:
University of the People
Course:
CS 4403 | Software Engineering 2
Academic year:

2021
Views:

443

Pages:

1
Author:

levedzgetmo7f

What is the fundamental difference between a Layer 2 switch and a Layer 3 router? Certainly, layer 2 is under the open system interconnect (OSI) model while layer 3 is under the network layer of the OSI model. Layer 2 operates with frames while layer 3 operates with packets. Layer 2 transmit data frames, while layer 3 transmit packets and is responsible for external data transmission. The layer 2 switch works with only the MAC addresses, while the layer 3 have to do with the MAC address and the IP routing table, it also does the static and dynamic routing task. Layer 3 also takes care of intra VLAN communication and packets routing with different VLAN. Layer 2 switch make use of Address Resolution Protocol (ARP) to resolve the MAC address, while layer 3 switch make use of the routing protocol.