A user complains that Skype drops her videoconference calls and she must reconnect.
At which layer of the OSI model should you begin troubleshooting? Which OSI layer
is responsible for not dropping the Skype connection?
You should begin troubleshooting at the Transport layer of the OSI model. The Transport layer is responsible for establishing and maintaining a reliable communication link between the source and destination devices. It ensures the proper delivery of data by providing error detection, flow control, and retransmission of lost or corrupted packets.
The fifth layer of the OSI model, the Session layer, is responsible for managing the connections and sessions between applications. It is not directly responsible for maintaining the connection itself, but rather for coordinating and synchronizing the communication between different applications.
In the case of Skype dropping videoconference calls, it is likely that the issue lies within the Transport layer. Problems such as network congestion, packet loss, or a weak network connection can cause the Skype connection to drop. By troubleshooting at the Transport layer, you can identify and address any issues related to the reliable delivery of data packets, which could be causing the dropped calls.
To troubleshoot the issue of dropped videoconference calls on Skype, you should begin troubleshooting at the Transport Layer of the OSI model.
The Transport Layer (Layer 4) is responsible for delivering data reliably and efficiently across a network. It ensures that data sent from one device to another is received correctly and in the correct order. This layer uses various protocols for reliable data transfer, such as TCP (Transmission Control Protocol).
However, the specific layer responsible for not dropping the Skype connection is the Application Layer (Layer 7) of the OSI model. The Application Layer deals with high-level protocols and applications, such as Skype, that allow users to communicate over a network. It provides services specific to the application, in this case, maintaining the videoconference connection.
While dropped calls can occur due to issues at any layer of the OSI model, starting troubleshooting at the Transport Layer is often recommended as it handles the reliable transfer of data between devices.