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Professional Discussions => Routing and Switching => Topic started by: j.sivasankar92 on April 27, 2015, 09:25:17 AM

Title: For 400 systems how many ports of switches need
Post by: j.sivasankar92 on April 27, 2015, 09:25:17 AM
for an example

In our office only 400 systems are available. We cannot buy a Cisco switches because of more cost.
So we've to buy a net gear or sys link switches. So how many ports of switches need.

Really I can't to understand...

next kindly please how to connect from broadband connection(//)
Title: Re: For 400 systems how many ports of switches need
Post by: icecream-guy on April 27, 2015, 11:24:00 AM
you need 1 port for each connection,   so 400 + 1 for broadband
Title: Re: For 400 systems how many ports of switches need
Post by: deanwebb on April 27, 2015, 11:43:10 AM
There also needs to be a switch port available for connecting to another switch. Two ports if you want to have high availability for your distribution switches - which I do recommend so that you don't have all your access switches cascading off of each other.
Title: Re: For 400 systems how many ports of switches need
Post by: j.sivasankar92 on April 27, 2015, 01:13:19 PM
Hmm! It's okay if I have 48 port Cisco switch. How many systems able to connect to the switch
Title: Re: For 400 systems how many ports of switches need
Post by: icecream-guy on April 27, 2015, 01:55:34 PM
Quote from: j.sivasankar92 on April 27, 2015, 01:13:19 PM
Hmm! It's okay if I have 48 port Cisco switch. How many systems able to connect to the switch

48
Title: Re: For 400 systems how many ports of switches need
Post by: deanwebb on April 28, 2015, 10:00:24 AM
Well, that's 48 endpoints if you're not linking the switch to anything else.

And to the OP, you really do not want to have a chain of switches in serial. You will likely want to have access switches for your endpoints, and then those access switches would connect to a distribution switch that will handle communication between the switches.
Title: Re: For 400 systems how many ports of switches need
Post by: Fred on April 28, 2015, 09:22:07 PM
For 400 devices, are you planning on zero redundancy?

You could do 400 devices with off the shelf switches.  Take a 24-port gigabit switch. Subtract one for your internet gateway, and you'd have 23 available ports for devices.  Connect each of these to another 24-port gigabit switch, and you'd have 23-ports on each of those available.  I'll let you do the math from there.

And I'd fire any engineer who thought that was a good design.