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EE-2002
Joined: 01 Sep 2005
Posts: 5
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 24 May 2006 18:10 MUX Layer |
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Hi All,
Can someone provide information on what a MUX layer is in networking?
Any help is appreciated.
thanks.
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pratyk
Joined: 02 Jun 2006
Posts: 56
Helped: 5
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| 13 Jun 2006 6:02 Re: MUX Layer |
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There is an interdependence between the two layers i.e the driver and the protocol layer of a network driver. VxWorks implements a layer in between the IP and datalink, thus eliminating the interdependence between the two layers. The intermediate layer is known as the MUX layer.
In an ordinary TCP /IP the IP layer is linked to the datalink layer. To implement a new protocol at the IP Layer level, the corresponding driver has to be written or to write a new driver the corresponding protocol has to be taken into account.
MUX is a set of library routines, which decouples the IP layer and the datalink layer. This provides the flexibility and ease in implementing a new network protocol or a network device driver. For implementing a protocol one need not bother about the driver or vice versa. Even a third party protocol can communicate with the MUX.
When an applications wishes to send a packet to the network, the IP layer puts that packet on to the MUX layer rather than sending it to the driver. Similarly when a packet is received, the END puts it on to the MUX.MUX communicates with the IP layer with functions for various services.
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Abu Ammora
Joined: 13 Jun 2005
Posts: 142
Helped: 3
Location: East Coast
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| 24 Jan 2007 22:02 Re: MUX Layer |
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| Mux layer means L4 of the OSI Model "Transport Layer" which one its main operations is Multiplexing port numbers for Applications , as each application has unique port number , so there're souce port number and destination port number , this function of Multiplexing exist regardless u use TCP or UDP .
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