Before you set up Home Sharing
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- Update all of your Apple devices to the latest versions of iOS, iPadOS, macOS, and tvOS. On your PC, make sure that you have the latest version of iTunes for Windows.
- Connect all of your devices to the same Wi-Fi or Ethernet network.
- Make sure that all of your devices are signed in with the same Apple ID and authorized to play purchases using that Apple ID.
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Inserts some media into LibSharedMedia's storage. Our records show that you have outstanding author rewards points. Please confirm your latest payment information and redeem your points balance via the Author Reward Store. One of the best features on the iPhone has always been Home Sharing, which lets you use your iPhone to stream music, movies, TV shows, and other media content from the iTunes library on your Mac or PC. IOS 8 introduces a new kind of sharing called Family Sharing, which lets you share purchases from. Share content on a Mac. If you're using a Mac, you'll need to grant permission to Teams to record your computer's screen before you can share. You'll be prompted to grant permission the first time you try to share your screen. Select Open System Preferences from the prompt.
Set up Home Sharing
Before you can use Home Sharing, you need to set it up on your Mac or PC.
How to set up Home Sharing on your Mac
- Choose Apple menu > System Preferences.
- Click Sharing.
- Click Media Sharing.
- Select Home Sharing and sign in with your Apple ID. Use the same Apple ID for every computer or device on your Home Sharing network.
- Click Turn On Home Sharing.
How to set up Home Sharing on your PC
- Open iTunes for Windows.
- If you're not signed in, sign in with your Apple ID. Use the same Apple ID for every computer or device on your Home Sharing network.
- From the menu bar at the top of the iTunes window, choose File > Home Sharing > Turn on Home Sharing.
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You can use Home Sharing with up to five computers that are connected to your home Wi-Fi or Ethernet network.
Use Home Sharing
On your Mac or PC, you can use Home Sharing to see shared libraries from other computers that are connected to the same Wi-Fi network and signed in with the same Apple ID.
To see a shared library from a computer on your iPhone, iPad, iPod touch, or Apple TV, you need to be signed in with the same Apple ID as the computer and connected to the same Wi-Fi network.
On your Mac
You can use Home Sharing to access your media library across computers that are on the same Wi-Fi network. And you can stream music, movies, and TV shows from one authorized computer to another. Just make sure that your computers are powered on, awake, and have the Music app or iTunes for Windows open.
To access your media library:
Android os sdk for mac. Setting up Android Studio takes just a few clicks.First, be sure you.
- Open the Music app.
- If you're not signed in, sign in with your Apple ID. Use the same Apple ID for every computer or device on your Home Sharing network.
- In the sidebar, click Library.
- Click the media library.
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To go back to your music library, click Eject in the sidebar.
On your PC
You can use Home Sharing to stream music, movies, and TV shows from one authorized computer to another. Just make sure that your computers are powered on, awake, and have the Music app or iTunes for Windows open.
To see all of your shared libraries, click Music in the upper-left corner of the iTunes window.
On your iPhone, iPad, or iPod touch
To use Home Sharing to access your computer's media library on your iPhone, iPad, and iPod touch, sign in to Home Sharing on your device:
- To see a music library, go to Settings > Music. To see a video library, go to Settings > TV > iTunes Videos.
- Under Home Sharing, tap Sign In.
- Sign in with your Apple ID. Use the same Apple ID for every computer or device on your Home Sharing network.
After you sign in, connect your iPhone, iPad, or iPod touch to the same Wi-Fi network as your computer, and open the Music app, Apple TV app, or iTunes for Windows on your computer.
Mac read write permissions for. See shared music
- Open the Music app and tap Library.
- Tap Home Sharing. Don't see it? Tap Edit, select Home Sharing, then tap Done.
- Choose a shared library.
See shared videos
- Open the TV app.
- Tap Library.
- Choose a shared library.
On your Apple TV
To use Home Sharing to access your computer's media library on your Apple TV, sign in to Home Sharing on your Apple TV:
- Go to Settings > Users and Accounts > Home Sharing.
- Select Turn on Home Sharing.
- Sign in with your Apple ID. Use the same Apple ID for every computer or device on your Home Sharing network.
After you sign in, follow these steps to access your computer's media library on your Apple TV:
- Connect your Apple TV to the same Wi-Fi network as your computer.
- On your computer, open the Music app, Apple TV app, or iTunes for Windows.
- On your Apple TV, go to the Home screen, select Computers, and choose a shared library.
You can also view photos from your computer on your Apple TV.
- On your Mac: Choose Apple menu > System Preferences. Click Sharing. Click Media Sharing, then select Share Photos with Apple TV.
- On your PC: Open iTunes for Windows. In the menu bar, go to File > Home Sharing, then select Choose Photos to Share with Apple TV.
(Redirected from Media access control)
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In IEEE 802 LAN/MAN standards, the medium access control (MAC, also called media access control) sublayer is the layer that controls the hardware responsible for interaction with the wired, optical or wireless transmission medium. The MAC sublayer and the logical link control (LLC) sublayer together make up the data link layer. Within the data link layer, the LLC provides flow control and multiplexing for the logical link (i.e. EtherType, 802.1Q VLAN tag etc), while the MAC provides flow control and multiplexing for the transmission medium.
These two sublayers together correspond to layer 2 of the OSI model. For compatibility reasons, LLC is optional for implementations of IEEE 802.3 (the frames are then 'raw'), but compulsory for implementations of other IEEE 802 physical layer standards. Within the hierarchy of the OSI model and IEEE 802 standards, the MAC sublayer provides a control abstraction of the physical layer such that the complexities of physical link control are invisible to the LLC and upper layers of the network stack. Thus any LLC sublayer (and higher layers) may be used with any MAC. In turn, the medium access control block is formally connected to the PHY via a media-independent interface. Although the MAC block is today typically integrated with the PHY within the same device package, historically any MAC could be used with any PHY, independent of the transmission medium.
When sending data to another device on the network, the MAC sublayer encapsulates higher-level frames into frames appropriate for the transmission medium (i.e. the MAC adds a syncword preamble and also padding if necessary), adds a frame check sequence to identify transmission errors, and then forwards the data to the physical layer as soon as the appropriate channel access method permits it. For topologies with a collision domain (bus, ring, mesh, point-to-multipoint topologies), controlling when data is sent and when to wait is necessary to avoid collisions. Additionally, the MAC is also responsible for compensating for collisions by initiating retransmission if a jam signal is detected. When receiving data from the physical layer, the MAC block ensures data integrity by verifying the sender's frame check sequences, and strips off the sender's preamble and padding before passing the data up to the higher layers.
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Functions performed in the MAC sublayer[edit]
According to IEEE Std 802-2001 section 6.2.3 'MAC sublayer', the primary functions performed by the MAC layer are:[1]
- 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
- Protection against errors, generally by means of generating and checking frame check sequences
- Control of access to the physical transmission medium
Transmission torrent for mac. In the case of Ethernet, according to 802.3-2002 section 4.1.4, the functions required of a MAC are:[2]
- receive/transmit normal frames
- half-duplex retransmission and backoff functions
- append/check FCS (frame check sequence)
- interframe gap enforcement
- discard malformed frames
- prepend(tx)/remove(rx) preamble, SFD (start frame delimiter), and padding
- half-duplex compatibility: append(tx)/remove(rx) MAC address
Addressing mechanism[edit]
The local network addresses used in IEEE 802 networks and FDDI networks are called media access control addresses; they are based on the addressing scheme that was used in early Ethernet implementations. A MAC address is intended as a unique serial number. MAC addresses are typically assigned to network interface hardware at the time of manufacture. The most significant part of the address identifies the manufacturer, who assigns the remainder of the address, thus provide a potentially unique address. This makes it possible for frames to be delivered on a network link that interconnects hosts by some combination of repeaters, hubs, bridges and switches, but not by network layerrouters. Thus, for example, when an IP packet reaches its destination (sub)network, the destination IP address (a layer 3 or network layer concept) is resolved with the Address Resolution Protocol for IPv4, or by Neighbor Discovery Protocol (IPv6) into the MAC address (a layer 2 concept) of the destination host.
Examples of physical networks are Ethernet networks and Wi-Fi networks, both of which are IEEE 802 networks and use IEEE 802 48-bit MAC addresses.
A MAC layer is not required in full-duplexpoint-to-point communication, but address fields are included in some point-to-point protocols for compatibility reasons.
Channel access control mechanism[edit]
The channel access control mechanisms provided by the MAC layer are also known as a multiple access method. This makes it possible for several stations connected to the same physical medium to share it. Examples of shared physical media are bus networks, ring networks, hub networks, wireless networks and half-duplex point-to-point links. The multiple access method may detect or avoid data packet collisions if a packet mode contention based channel access method is used, or reserve resources to establish a logical channel if a circuit-switched or channelization-based channel access method is used. The channel access control mechanism relies on a physical layer multiplex scheme.
The most widespread multiple access method is the contention-based CSMA/CD used in Ethernet networks. This mechanism is only utilized within a network collision domain, for example an Ethernet bus network or a hub-based star topology network. An Ethernet network may be divided into several collision domains, interconnected by bridges and switches.
A multiple access method is not required in a switched full-duplex network, such as today's switched Ethernet networks, but is often available in the equipment for compatibility reasons.
Channel access control mechanism for concurrent transmission[edit]
Use of directional antennas and millimeter-wave communication in a wireless personal area network increases the probability of concurrent scheduling of non‐interfering transmissions in a localized area, which results in an immense increase in network throughput. However, the optimum scheduling of concurrent transmission is an NP-hard problem.[3]
Cellular networks[edit]
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Cellular networks, such as GSM, UMTS or LTE networks, also use a MAC layer. The MAC protocol in cellular networks is designed to maximize the utilization of the expensive licensed spectrum.[4] The air interface of a cellular network is at layers 1 and 2 of the OSI model; at layer 2, it is divided into multiple protocol layers. In UMTS and LTE, those protocols are the Packet Data Convergence Protocol (PDCP), the Radio Link Control (RLC) protocol, and the MAC protocol. The base station has absolute control over the air interface and schedules the downlink access as well as the uplink access of all devices. The MAC protocol is specified by 3GPP in TS 25.321[5] for UMTS, TS 36.321[6] for LTE and TS 38.321[7] for 5G New Radio (NR).
See also[edit]
- MACsec (IEEE 802.1AE)
References[edit]
- ^'IEEE 802-2001 (R2007) IEEE Standard for Local and Metropolitan Area Networks: Overview and Architecture'(PDF). IEEE.
- ^'IEEE 802.3'. IEEE.
- ^Bilal, Muhammad; et al. (2014). 'Time‐Slotted Scheduling Schemes for Multi‐hop Concurrent Transmission in WPANs with Directional Antenna'. ETRI Journal. 36 (3): 374–384. arXiv:1801.06018. doi:10.4218/etrij.14.0113.0703.
- ^Guowang Miao; Jens Zander; Ki Won Sung; Ben Slimane (2016). Fundamentals of Mobile Data Networks. Cambridge University Press. ISBN978-1107143210.
- ^3GPP TS 25.321 Medium Access Control (MAC) protocol specification
- ^3GPP TS 36.321 Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification
- ^3GPP TS 38.321 NR; Medium Access Control (MAC) protocol specification
- This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the 'relicensing' terms of the GFDL, version 1.3 or later.
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