The main contents of this chapter include all of the following: Layer 1 provides the physical media and its encoding, layer 2 devices provide an interface with the physical media, the network layer provides connectivity and path selection between two host systems,. Inviting you to refer. | Building a Simple Network Exploring the Packet Delivery Process Layer 1 Devices Layer 1 provides the physical media and its encoding. Examples: Ethernet Serial Repeater Physical interface of the NIC Lesson Aim Layer 2 Devices Layer 2 devices provide an interface with the physical media. Examples: NIC Bridge Switch Lesson Aim Layer 2 Addressing MAC address Assigned to end devices Lesson Aim Layer 3 Devices and Their Function The network layer provides connectivity and path selection between two host systems. In the host, this is the path between the data link layer and the upper layers of the NOS. In the router, it is the actual path across the network. Lesson Aim Layer 3 Addressing Each NOS has its own Layer 3 address format. OSI uses an NSAP. TCP/IP uses IP. Lesson Aim ARP Lesson Aim ARP Table Host-to-Host Packet Delivery (1 of 22) . | Building a Simple Network Exploring the Packet Delivery Process Layer 1 Devices Layer 1 provides the physical media and its encoding. Examples: Ethernet Serial Repeater Physical interface of the NIC Lesson Aim Layer 2 Devices Layer 2 devices provide an interface with the physical media. Examples: NIC Bridge Switch Lesson Aim Layer 2 Addressing MAC address Assigned to end devices Lesson Aim Layer 3 Devices and Their Function The network layer provides connectivity and path selection between two host systems. In the host, this is the path between the data link layer and the upper layers of the NOS. In the router, it is the actual path across the network. Lesson Aim Layer 3 Addressing Each NOS has its own Layer 3 address format. OSI uses an NSAP. TCP/IP uses IP. Lesson Aim ARP Lesson Aim ARP Table Host-to-Host Packet Delivery (1 of 22) Lesson Aim Host-to-Host Packet Delivery (2 of 22) Lesson Aim Host-to-Host Packet Delivery (3 of 22) Lesson Aim Host-to-Host Packet Delivery (4 of 22) Lesson Aim Host-to-Host Packet Delivery (5 of 22) Lesson Aim Host-to-Host Packet Delivery (6 of 22) Lesson Aim Host-to-Host Packet Delivery (7 of 22) Lesson Aim Host-to-Host Packet Delivery (8 of 22) Lesson Aim Host-to-Host Packet Delivery (9 of 22) Lesson Aim Host-to-Host Packet Delivery (10 of 22) Lesson Aim Host-to-Host Packet Delivery (11 of 22) Lesson Aim Host-to-Host Packet Delivery (12 of 22) Lesson Aim Host-to-Host Packet Delivery (13 of 22) Lesson Aim Host-to-Host Packet Delivery (14 of 22) Lesson Aim
