Fabric Switch ,

[mautez_mah]

could anyone please help me with simple explanation of the below topic from Switch ( DC-Switch ) 
1- what is Fabric switch , I got confused Fabric , is it mean Line card will be called Fabric so it will connect to Storage, 
will be different if switch is not Fabric , where can I see Fabric in switch 
2- what is crossbar switching fabric ?
3- how packet will be Forward , if I have Supervisor, Cef , line card , RP , ? 
4- backplane connections offered ?
5- will Supervisor will always handle all Controle plane , can handle both control and data plane 

[Flavio Miranda · Accepted solution]

Hi

Fabric switch is a new concept. You can have fabric in Cisco ACI using Nexus and now you can have facric in enterprise using catalyst 9xxxx as wall. Fabric brings a whole universe in network. 

Start by reading some doc.

https://www.cisco.com/c/en/us/solutions/enterprise-networks/what-is-a-network-fabric.html 

[balaji.bandi]

Don't confuse the terminology Fabric - (cisco buzz word)

Fabric is simply an overlay network.  Overlays are created through encapsulation, a process that adds an additional header(s) to the original packet or frame.  An overlay network creates a logical topology used to virtually connect devices that are built over an arbitrary physical underlay topology.

Most of your questions already have enough explanation over internet and cisco site.

This information mostly you need to look based on the model of the switch you choose and supervisor card that can give you more information.

DC-Switches :

https://www.cisco.com/c/en_uk/solutions/data-center-virtualization/application-centric-infrastructure/index.html