Answer / sudeep

Layer 3 switch do routing with Aisc chips router do with
microprocessor and its associated software
Router can be used to join different networks.L3 switch
cann't join different network.
Router needed especially where connections to the wide area
are required.
Router support many routing protocols.L3 bswitch support
very few routing protocol.

Answer / mr.shahin07

Hi, I m Shahin Ahmed. I also don't have much knowledge on
that. Still trying to explain it. Hope it'll help you.

Layer 3 switch is a high-performance device for network
routing. Layer 3 switches actually differ very little from
routers. A Layer 3 switch can support the same routing
protocols as network routers do. Both inspect incoming
packets and make dynamic routing decisions based on the
source and destination addresses inside.


The key difference between Layer 3 switches and routers lies
in the hardware technology used to build. The hardware
inside a Layer 3 switch combine that of traditional switches
and routers, replacing some of a router's software logic
with hardware to offer better performance in some situations.


Layer 3 switches often cost less than traditional routers.
Designed for use within local networks, a Layer 3 switch
will typically not possess the WAN ports and wide area
network features a traditional.

Answer / nikhil maggu

first of all the differnce between layer2 and layer3 switching:
layer 2 is for peer to peer communication
layer 3 is for process to process communication

A Layer3 switch u can say an enhanced switch with some
routing capabilities
Broadly we can say switch is a devive using hardware to
create network paths whereas a router does same by
CPU's(s/w). As sudeep above mentioned that layer3 switches
use ASIC chips/circuit over microprocessor in routers it
results into Faster speed(min latancy)

The L3 switches are best suited for Lan & routers for
WAN(for optimised performance rather u can use both in any role)

Answer / nikhil maggu

Jeetu i guess this can resolve ur confussion

Answer / nikhil maggu

n yeah biggest differnce between them

A L3 switch is capable of routing traffic between only 2
subnets only
but theres no such limitations in case of router

hi i am facing one problem.ptoblem is like that i am getting output error on mine router ethernet interfae here is the cisco#show interface e0 Ethernet0 is up, line protocol is up Hardware is QUICC Ethernet, address is 0030.802d.2a17 (bia 0030.802d.2a17) Internet address is 202.122.20.225/28 MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load 1/255 Encapsulation ARPA, loopback not set, keepalive set (10 sec) ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters 05:55:07 Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 10000 bits/sec, 11 packets/sec 5 minute output rate 29000 bits/sec, 11 packets/sec 1515202 packets input, 359100396 bytes, 1 no buffer Received 6 broadcasts, 0 runts, 0 giants, 1 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 0 input packets with dribble condition detected 1584394 packets output, 1623395338 bytes, 0 underruns 1820 output errors, 26732 collisions, 0 interface resets 0 babbles, 0 late collision, 9698 deferred 18 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out output cisco# what is the reason how to solve this please tell me i am using cisco asa 5520 behid mine internet router and no error on the asa inside interface

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