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What is PHY MAC layer?
The PHY layer defines the physical and electrical characteristics of the network. It is responsible for managing the hardware that modulates and demodulates the RF bits. The MAC layer is responsible for sending and receiving RF frames.
What is meant by MAC protocol?
The Medium Access Control (MAC) protocol is used to provide the data link layer of the Ethernet LAN system.
What is MAC in data communication?
The medium access control (MAC) is a sublayer of the data link layer of the open system interconnections (OSI) reference model for data transmission. It controls the transmission of data packets via remotely shared channels. It sends data over the network interface card.
What are the 2 main functions of the MAC sublayer?
Layer 2: Data Link Logical Link Control (LLC) sublayer provides the logic for the data link. Thus, it controls the synchronization, flow control, and error checking functions of the data link layer. Media Access Control (MAC) sublayer provides control for accessing the transmission medium.
What is the main function of MAC protocol?
he medium access control (MAC) is a sublayer of the data link layer of the open system interconnections (OSI) reference model for data transmission. It is responsible for flow control and multiplexing for transmission medium. It controls the transmission of data packets via remotely shared channels.
What is MAC and its types?
There are two types of MAC addresses: static and dynamic. Depending on their type, MAC addresses are either stored in the Static Address table or in the Dynamic Address table, along with VLAN and port information.
What are the functions of MAC?
Functions performed in the MAC sublayer
- Frame delimiting and recognition.
- Addressing of destination stations (both as individual stations and as groups of stations)
- Conveyance of source-station addressing information.
- Transparent data transfer of LLC PDUs, or of equivalent information in the Ethernet sublayer.
What is PHY and what does PHY stand for?
A PHY connects a link layer device (often called MAC as an acronym for medium access control) to a physical medium such as an optical fiber or copper cable.
What’s the difference between MAC PHY and Mac Mii?
MAC PHY defenitions. from Wikipedia: The media-independent interface (MII) was originally defined as a standard interface used to connect a Fast Ethernet (i.e., 100 Mbit/s) media access control (MAC) block to a PHY chip. Don’t the different Ethernet protocols (GMII, RGMII etc) define PHY <-> PHY connection.
What’s the difference between Mac and PHY layers?
Different PHY layers will have different FEC configurations and modulation formats. MAC is the short form of Medium Access Control Layer. It is the layer-2 in OSI stack. It interfaces PHY layer and Upper layers (i.e. network and above). • It incorporates MAC header at the start of upper layer IP packet and CRC at the end of IP packet.
What is PHY and what is Mac in OSI stack?
Layer-1 is known as PHY and Layer-2 is known as MAC. Figure depicts positions of these layers in OSI stack. PHY is the short form of Physical Layer or medium. It is the layer-1 in OSI stack. It interfaces physical medium with MAC and upper layers. Physical medium can be copper wire, fiber optic cable, twisted pair or even wireless channel.