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what is the difference between Layer 3 switch and Router
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Answer Posted / saheem shah
L3 switches do not have WAN interfaces.
You can connect Ethernet circuits to a switch so you only
need a router if you want to connect traditional circuits
such as E1 E1 SDH or old technology such as X21 V35 or
async circuits.
As far as I know Call Manager Express does not run on a
switch but does on a router.
Switches support WiFi controller, Firewall so are quite
powerfull.
So you need to understand the business requirement before
deciding router or switch.
Also routers can include switch modules
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