Layer 3 is the network layer and its protocol is the Internet Protocol or IP.
Is a modem a layer 3 switch?
A modem is part of the data link layer (layer 2) and connects an internal network to the external Internet.
Is Ping a Layer 3?
The ping command uses the services of the Internet Control Message Protocol (ICMP), the latter being encapsulated in the IP header. Therefore, the ping utility operates basically on layer 3 (the Network layer) of the OSI model.
What is a Layer 3 switch similar to?
A Layer 3 switch works much like a router because it has the same IP routing table for lookups, and it forms a broadcast domain. However, the switch part of Layer 3 switch is there because: The Layer 3 switch looks like a switch. It has 24-plus Ethernet ports and no WAN interfaces.
Is HTTP a layer 4?
HTTP is the predominant Layer 7 protocol for website traffic on the Internet. Layer 7 load balancers route network traffic in a much more sophisticated way than Layer 4 load balancers, particularly applicable to TCP‑based traffic such as HTTP.
Is a router Layer 2 or 3?
The most common Layer 3 device used in a network is the router.
Is a MAC address Layer 3?
The MAC address is a layer 2 (data link) address. The layer 3 address is a logical address. It will pertain to a single protocol (such as IP, IPX, or Appletalk). The layer 2 address is a physical address.
What layer is a switch?
Network switches can operate at either OSI layer 2 (the data link layer) or layer 3 (the network layer). Layer 2 switches forward data based on the destination MAC address (see below for definition), while layer 3 switches forward data based on the destination IP address.