link error

The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers data between nodes on a network segment across the physical layer. The data link layer provides the functional and procedural means to transfer data between network entities and may also provide the means to detect and possibly correct errors that can occur in the physical layer.
The data link layer is concerned with local delivery of frames between nodes on the same level of the network. Data-link frames, as these protocol data units are called, do not cross the boundaries of a local area network. Inter-network routing and global addressing are higher-layer functions, allowing data-link protocols to focus on local delivery, addressing, and media arbitration. In this way, the data link layer is analogous to a neighborhood traffic cop; it endeavors to arbitrate between parties contending for access to a medium, without concern for their ultimate destination. When devices attempt to use a medium simultaneously, frame collisions occur. Data-link protocols specify how devices detect and recover from such collisions, and may provide mechanisms to reduce or prevent them.
Examples of data link protocols are Ethernet, Point-to-Point Protocol (PPP), HDLC and ADCCP. In the Internet Protocol Suite (TCP/IP), the data link layer functionality is contained within the link layer, the lowest layer of the descriptive model, which is assumed to be independent of physical infrastructure.

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  1. S

    Closed General suggestion po sa forbidden links

    Lagyan po ng 'space' o double 'dots' mga links po para hindi ma-translate as 'forbidden' losing the link information.
  2. T

    Closed Links links are being replaced.

    Hi ask lang po panu ko po malalagay yung blogspot link ko sa signiture ko ng hindi nirereplace ni PHC yung link o bawal yun? Salamat Salamat
  3. M

    Help Put a note near the attached file that only members that liked and commented to the thread could dl

    Napansin ko po kasi mga admins and mods, na hnd nawawala sa halos lahat ng thread yung mga nagtatanong kung bakit hnd madl nila yung attached file, or nageerror daw sa dl link. halimbawa po, dun sa mga nagawa kong thread, kahit nilagyan ko ng note sa 1st post ko, parang hnd pa rin naiintindhan...