Answer Posted / jitendera kumar sinha

all have answered wrong,they have replyed about l2 switches
but the answer is not that
i donot know i am wright or not so plz mark if i am wrong
or wright
now i am going to starting what is l3 switch
l-3 switch is that wich work on the l-3
wha does it mean.that mean that unlike l-2 switch l-3
switch can understand ip address
Layer 3 switching refers to a class of high-performance
routers optimized for the campus LAN or
intranet, providing both wirespeed Ethernet routing and
switching services
A Layer 3 switch router performs the following three major
functions:
• Packet switching
• Route processing
• Intelligent network services
Compared to other routers, Layer 3 switch routers process
more packets faster by using
application-specific integrated circuit (ASIC) hardware
instead of microprocessor-based engines.
Layer 3 switch routers also improve network performance
with two software functions—route
processing and intelligent network services.
then why we chose the router rather then l-3 switches.
so answer is that l-3 switch act on fast ethernet as
gigabyte ehternet,and another region is it having
router+switches feature both which create broadcast strom
per intrface,thus in the parctise swe choose router rather
then l-3 switch
and cost have also matter.

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