Which layer does which device operate?
Which layer does which device operate?
Network Layer – The network layer is responsible for creating routing table, and based on routing table, forwarding of the input request. Some of the Devices used in Network Layer are, Routers: A router is a switch like device that routes/forwards data packets based on their IP addresses.
What devices operate at each OSI layer?
Network+/Standards/OSI Model/OSI Components
| OSI Layer | Purpose | Device |
|---|---|---|
| Transport | Reliability | Firewall |
| Network | Addressing, Routing | Router |
| Data Link | Logical Link Control, Media Access Control | Switch, Bridge, Access Point |
| Physical | Transmission | Hub, NIC, Cable |
At which TCP IP model layer does a NIC operate?
Physical Layer
What is 2 layer switch?
Layer 2 switching (or Data Link layer switching) is the process of using devices’ MAC addresses to decide where to forward frames. Switches and bridges are used for Layer 2 switching. They break up one large collision domain into multiple smaller ones. In a typical LAN, all hosts are connected to one central device.
Does Layer 2 switch have IP address?
Explanation:A switch, as a Layer 2 device, does not need an IP address to transmit frames to attached devices. However, when a switch is accessed remotely through the network, it must have a Layer 3 address. Routers, not switches, function as default gateways.
What is a Layer 2 and Layer 3 switch?
Layer 2 switches perform the switching function to re-arrange the data frames from the source to its destination network. Layer 3 switches define paths based on logical addressing. Layer 2 switches are used to reduce traffic on the local network, whereas Layer 3 switches mostly used to Implement VLAN.
What is a Switchport?
Switchport puts a port into layer2 mode (ip routing disabled for the port). You cannot assign an IP address to a L2 port, only to the VLAN the L2 port belongs to. The options after switchport is used to set port operation mode for VLAN trunking. Cisco IOS command reference.
What is Switchport command?
switchport. You only use the switchport command on switches—not routers. It can put a port into trunk mode, into a certain VLAN, or even to set port security. Its most common use is to configure an interface to connect to an access device (e.g., workstation, server, printer, etc.).
What is the default Switchport mode?
The default switchport mode for newer Cisco switch Ethernet interfaces is dynamic auto. Note that if two Cisco switches are left to the common default setting of auto, a trunk will never form.