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Bandwidth calculation for datacenter

Hi all,

I'm currently designing a new datacenter.

Also I don't have much informations about applications and bandwidth usage.

Some informations are given:

100 Mb/s VPN Access (provider network)

4 x 100MB/s (Internet and customers) ...maybe there are one or two more customers which are connected...

Currently there are 6 Servers which each is connected with 4 x 1 GB on a Nexus 5548 with one 2128T fex !

Te Nexus should be act as the core.

So requirement was make a solution which is scalable and not expensive and should work for the first time.

My question:

How can I calculate the required bandwidth ?

Can I simple add the server connections (24 x 1 =24 Gb/s)

And regarding the VPN Access can I assume a maximum from 100Mb/s ?

Any help and tips are welcome

Maybe anyone can also recommend a book...

Udo

Sent from Cisco Technical Support iPad App

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Bandwidth calculation for datacenter

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