0
By layer, I am assuming you are talking about either the OSI 7 layer model or the TCP/IP 4 layer model. A router is fairly complex and provides services at 3 of the OSI model layers and 2 of the TCP/IP model layers.
In the OSI model a router handles the Network Layer. In the TCP/IP model this layer is called the internet Layer. It changes logical addresses to machine addresses and then finds paths (routes) to the destination node. It may break up the data into smaller parts for transmission or reassembling data received. There is no verification of successful transmission. A router also maintains a list of nodes that it is immediately connected to (computers, smart TV, Xbox, ...). Data segments from higher layers is converted to datagrams. Datagrams received from lower layers are translated into data segments.
The router establishes a Data Link Layer to all devices it is immediately connected to . This layer provide reliable communication and can detect and sometimes correct errors at the Physical Layer. The datagrams received from the Network Layer are converted into data frames and sent to the Physical layer. Data frames received from the physical layer are converted into datagrams and sent to the Network Layer.
The router also provides Physical Link Layer connections to all devices immediately connected to it. This is physical and electrical characteristics of the communication media (wire, fiber, wireless, ...). This is where the signals are negotiated like speed, timing, pin layout, voltages, ... After negotiation the physical layer is responsible for actual transmission of data over the line. Data frames received from the Data Link Layer are converted to bits and sent to the remote node. Bits received from the remote node are converted into data frames and sent to the Data Link Layer.
The Data Link Layer and the Physical Layer are called the Link Layer in the TCP/IP model.
What else can I help you with?
Wireless access point operate in what layer in OSI model?
it works in layer 2
Which layer wireless access point operate in osi model?
at both physical layer 1 and Data Link layer 2
What type of device is switch?
A Switch is a Layer 2 device as they operate in the data link layer
What protocol is used to create a basic layer of security for a wireless network?
A protocol that is used to create a basic layer of security for a wireless network is to set up a password and log in. This way no one else can use the wireless network, but the owner.
What is the difference between a thin access point and a fat access point?
Wireless LAN Switches: The Best Solution There are two types of wireless access points Intelligent (Fat) and Thin wireless Access points. A fat wireless access point has everything it needs to handle wireless clients. A Thin wireless access point is basically a radio and antenna that is controlled by a wireless switch. If you deploy several Fat wireless access points they need to be configured individually. With thin wireless access points the entire configuration takes place at the switch saving you time and money. Wireless LAN Switches provide many benefits: Wireless Mobility - Intelligent access aren't managed in a central location which means there is no third party monitoring the movement of a user. If a user moves to another work area traditional wireless access points have a hard time passing off the user to the new access point. Thin wireless access points are controlled be the wireless LAN switch who will manage the users movement. Security- Using the wireless LAN switch the administrator can check logs, configure is security settings, make group polices for wireless users all in one spot. Also built in to many wireless LAN switches are RADIUS servers which will give another layer of security on top of your encryption policies. In enterprise wireless networks the administrators biggest fear is rogue wireless access points. Wireless LAN switches can detect when a new wireless access point comes into the area and decide if it is a trusted or non-trusted device. Placement - Power over Ethernet is another great feature of wireless LAN Switches. Power over Ethernet eliminates the need for an power outlet to be near the wireless access point. This saves your company money by not having to install new power outlets. Also this improves security by not having the wireless access points within easy reach of passerby's. If you are deploying a wireless LAN for a company I would be scared if you don't utilize wireless LAN switches and wireless thin access points. The upfront costs of these products are more but your total cost of ownership will be less than having to administer each wireless access point separately. To sum it up home owners should stick with Fat access points and businesses should use thin.
Employees of a company connect their wireless laptop computers to the enterprise LAN via wireless access points that are cabled to the Ethernet ports of switches At which layer of the three-layer hie?
access level
How can you write text over background art?
The exact directions requires a knowledge of the tools that you have acess to.Use a text tool.Add a new layer and put text on that.
What is wireless card?
a "wireless card" is a network card that receives a high frequency signal from a wireless router or wireless access point. Same as an Ethernet Card/Network Interface Card(NIC), only wireless. A wireless Card is a network card which connects to a radio-based computer network, unlike a regular network interface controller (NIC) which connects to a wire-based network such as token ring or ethernet. A wireless Card, just like a NIC, works on the Layer 1 and Layer 2 of the OSI Model. A wireless Card is an essential component for wireless desktop computer. This card uses an antenna to communicate through microwaves. A wireless Card in a desktop computer usually is connected using the PCI bus. Other connectivity options are USB and PC card. Integrated WNIC's are also available, (typically in Mini PCI/PCI Express Mini Card form).
What layer is the first point of entry for a host into the network?
Access layer
Which ozone layer does global warming affect most?
The ozone layer is a single layer. So there is no point of WHICH ozone layer.
Which layers in the OSI model are host to host layers?
Transport layer is known as the host-to-host layer. Also data link layer is responsible for point-to-point or point-to-multipoint transport of data. HTH, Rajesh
What protocol adaptation layer will do?
The protocol adaptation layer servers as a translator between two protocols. This technology is used in digital wireless data transmission systems.
