Which layers are used in router and switch?

data link layer of layer2  and network link layer of layer3.

Network Layer work in router and data link layer works on a Switch

Hi,

Switches may operate in Data Link Layer and Network Layer and also multilayer switches and configurable switches are may operate in Layer-3.

Routers are may operate in Layer-3 I.e., Network Layer.

Layer 2 switch works at Data Link Layer and Layer 3 switch works at Network Layer.

Router works at Network Layer.

SWITCHES OPERATE NORMALLY AT LAYER2 BUT WE HAVE NEW SWITCHES WORK AT LAYER3

WHICH KNOW AS LAYER3 SWITCHES OR MPLS

ROUTERS USED LAYER3   

switches operate at the Data layer (Layer2) of the OSI Reference Model.

routers operate at the Network layer (Layer3)

Switches operate at Layer2 (Data Link Layer ) of OSI model. Switch works in single broadcast domain

and 

Router are used on Layer3 (Network Layer). Router use to break the broadcast domain.

Unmanaged Switch works on Layer - 2Router works on Layer -3