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12 Cards in this Set
- Front
- Back
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Adjacent layer interaction |
On a single computer, one layer provides a service to a higher layer. |
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Encapsulation |
In computer networking, encapsulation is a method of designing modular communication protocols in which logically separate functions in the network are abstracted from their underlying structures by inclusion or information hiding within higher level objects. |
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Frame |
the unit of transmission in a link layer protocol, and consists of a link layer header followed by a packet |
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Networking model |
is the arrangement of the various elements (links, nodes, etc.) of a communication network. |
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Packet |
is a formatted unit of data carried by a packet-switched network. |
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PDU (Protocol data unit) |
a unit of data which is specified in a protocol of a given layer and which consists of protocol-control information and possibly user data of that layer. |
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Same layer interaction |
Same-layer interaction occurs on multiple computers. The functions defined by that layer typically need to be accomplished by multiple computers—for example, the sender setting a sequence number for a segment, and the receiver acknowledging receipt of that segment. |
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Segment |
A protocol data unit of the transport layer in computing, e.g. TCP segment |
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Application layer protocols |
HTTP; POP3; SMTP |
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Transport layer protocols |
TCP; UDP |
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Internet layer protocol |
IP |
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Link layer protocols |
Ethernet; PPP; T1 |
