Talk:Session multiplexing

	This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ComputingWikipedia:WikiProject ComputingTemplate:WikiProject ComputingComputing articles
???	This article has not yet received a rating on the project's importance scale.
	This article is supported by Networking task force.

Session multiplexing is an activity in which a single computer, with a single IP address, is able to have multiple sessions occur simultaneously. A session is created when a source machine needs to send data to a destination machine. Most often, this involves a reply, but a reply is not mandatory. The session is created and controlled within the IP network application, which contains the functionality of OSI Layers 5 through 7.

A best-effort session is very simple. The session parameters are sent to UDP. A best-effort session sends data to the indicated IP address using the port numbers provided. Each transmission is a separate event, and no memory or association between transmissions is retained.

When using the reliable TCP service, a connection must first be established between the sender and the receiver before any data can be transmitted. TCP opens a connection and negotiates connection parameters with the destination. During data flow, TCP maintains reliable delivery of the data and, when complete, closes the connection.

For example, you enter a URL for Yahoo into the address line in the Internet Explorer window, and the Yahoo site corresponding to the URL appears. With the Yahoo site open, you can open the browser again in another window and type in another URL (for example, Google). You can open another browser window and type the URL for Cisco.com and it will open.

Three sites are open using only one IP connection, because the session layer is sorting the separate requests based on the port number.

Start a discussion about improving the Session multiplexing page

Talk pages are where people discuss how to make content on Wikipedia the best that it can be. You can use this page to start a discussion with others about how to improve the "Session multiplexing" page.

Start a discussion