Layer 3 routing performed by microprocessor type engines. Which required CPU cycles to examine each packets network header.
In switching frames are forwarded using special hardware called application specific integrated circuits(ASIC).
Routing : Cisco express forwarding (CEF) a database of routes to every destination on the network. It will distributes the packets to ASICs.
Each switch port has its own collision domain and do not send collisions to any other port.
VLAN routing required L3 device (router or l3 switch).
Network Traffic Model :-
80/20 Rule - 80% of the organization traffic will be in switching .
20% will be in routing.
Hierarchical network design :-
Access Layer
Distribution Layer
Core Layer
In switching frames are forwarded using special hardware called application specific integrated circuits(ASIC).
Routing : Cisco express forwarding (CEF) a database of routes to every destination on the network. It will distributes the packets to ASICs.
Each switch port has its own collision domain and do not send collisions to any other port.
VLAN routing required L3 device (router or l3 switch).
Network Traffic Model :-
80/20 Rule - 80% of the organization traffic will be in switching .
20% will be in routing.
Hierarchical network design :-
Access Layer
Distribution Layer
Core Layer
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