VPN Bandwidth Requirements

[Renuka Nadkarni]

I dont see how using a VPN can affect the bandwidth
requirement.
Only thing that may change with use of a VPN is that
you have to make sure that the VPN gateway is not a
bottleneck. Most of the manufacturers have different
speeds of encryption so a right platform can be
chosen.
As for remote access it is usually limited by the
access connection (DSL or modem)
I would first design the network and then purchase the
VPN equipment (firewall/router/hardware gateway) to do
encryption for the traffic.
As such I think the bandwidth and vpn are diffrent
issue.
(Just realised that this is true for layer 3 IPSec
VPNs. If you are talking about VPNs using VCs for ATM
or FR where QOS plays main role it is a diff ball
game.)


--- Geoffrey Dacosta <geoff.dacosta at EXCITE.COM> wrote:
> Hi,
>
> I'm a Strategy Consultant performing some work in
> the telecommunications
> industry (read: I am not a telecom *expert*).  I am
> currently working with
> an equipment manufacturer, and as part of my work I
> am trying to determine a
> typical bandwidth requirement of a VPN.  I have had
> difficulty in finding
> the answer to this, possibly because it might be
> like asking "what's the
> average cost of a car?"  But, if anybody has any,
> even a vague sense,
> regarding this, I am hoping you can help me.  If you
> can, you could you
> email me at geoff.dacosta at excite.com.  Any help is
> greatly appreciated.
>
> Thank you,
> Geoff
>
>
>
>
>
>
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