1 / 6

Network Fundamentals

Layer 5 the Session Layer. Network Fundamentals. Session Layer. The session layer provides the mechanism for opening, closing and managing a session between end-user application processes, i.e., a semi-permanent dialogue .

marrim
Download Presentation

Network Fundamentals

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Layer 5 the Session Layer Network Fundamentals

  2. Session Layer • The session layer provides the mechanism for opening, closing and managing a session between end-user application processes, i.e., a semi-permanent dialogue. • In case of a connection loss this protocol may try to recover the connection. If a connection is not used for a long period, the session-layer protocol may close it and re-open it.

  3. Full Duplex, Half-Duplex, and Simplex • A duplexsystem allows devices to communicate with one another in both directions simultaneously

  4. Half-Duplex • A half-duplexsystem provides communication in both directions, but only one direction at a time. Typically, once a party begins receiving a signal, it must wait for the transmitter to stop transmitting, before replying.

  5. Simplex • Simplex communication refers to communication that occurs in one direction only. • Can you think of an everyday example of this?Hint: It pre-dates television.

  6. Services • Authentication • Permissions • Session Restoration – Takes a snapshot of the current state and uses it for restarting the execution in case of failure

More Related