Term
| Transport Level Encapsulation |
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| Network Level Encapsulation |
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| Data Link Level Encapsulation |
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| Physical Level Encapsulation |
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Definition
7 - Application
6 - Presentation
5 - Session
4 - Transport
3 - Network
2 - Data Link
1 - Physical |
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| Patterns of Microwave Transmissions |
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Term
| TCP/IP Layer Standards Governed by: |
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Definition
| IETF Governs this layer of the OSI Model |
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Term
| Physical Layer Standards Governed by: |
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Definition
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Definition
| A 0 is represented by a high to low voltage transition and a 1 is represented as a low to high voltage transition. This type of encoding is used in older versions of Ethernet, RFID and Near Field Communication. |
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Term
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Definition
| This is a common means of encoding data that has two states termed “zero” and “one” and no neutral or rest position. A 0 may be represented by one voltage level on the media and a 1 might be represented by a different voltage on the media. |
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Definition
| Data signals are transmitted without an associated clock signal. The time spacing between data characters or blocks may be of arbitrary duration, meaning the spacing is not standardized. Therefore, frames require start and stop indicator flags. |
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Definition
| Data signals are sent along with a clock signal which occurs at evenly spaced time durations referred to as the bit time. |
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Definition
| the measure of the transfer of bits across the media over a given period of time. |
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Definition
| the amount of time, to include delays, for data to travel from one given point to another |
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Definition
| the measure of usable data transferred over a given period of time. |
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Definition
It accepts Layer 3 packets and packages them into data units called frames
It controls media access control and performs error detection |
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Term
| Logical Link Control (LLC) |
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Definition
| This upper sublayer defines the software processes that provide services to the network layer protocols. It places information in the frame that identifies which network layer protocol is being used for the frame. This information allows multiple Layer 3 protocols, such as IPv4 and IPv6, to utilize the same network interface and media. |
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Term
| Media Access Control (MAC) |
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Definition
| This lower sublayer defines the media access processes performed by the hardware. It provides data link layer addressing and delimiting of data according to the physical signaling requirements of the medium and the type of data link layer protocol in use. |
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Term
| Frame start and stop indicator flags |
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Definition
| Used by the MAC sublayer to identify the beginning and end limits of the frame |
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Term
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Definition
| Used by the MAC sublayer to identify the source and destination nodes |
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Term
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Definition
| Used by the LLC to identify the Layer 3 protocol |
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Term
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Definition
| Identifies special flow control services |
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Term
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Definition
| Contains the frame payload (i.e., packet header, segment header, and the data) |
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Term
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Definition
| Included after the data to form the trailer, these frame fields are used for error detection |
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Term
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Definition
| How the connection between the nodes appears to the data link layer |
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Term
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Definition
| How the nodes share the media. The media sharing can be point-to-point such as in WAN connections or shared such as in LAN networks |
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Definition
| Indicates the beginning of the frame |
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Term
| Source and Destination Address fields |
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Definition
| Indicates the source and destination nodes on the media |
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Term
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Definition
| Indicates the upper layer service contained in the frame |
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Term
| Priority/Quality of Service field |
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Definition
| Indicates a particular type of communication service for processing |
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Term
| Logical connection control field |
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Definition
| Used to establish a logical connection between nodes |
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Term
| Physical link control field |
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Definition
| Used to establish the media link |
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Definition
| Used to start and stop traffic over the media |
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Definition
| Indicates congestion in the media |
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