VPN Bandwidth Requirements

[Philipp Buehler]

On 09/03/2001, Stephen Hope <shope at energis-eis.co.uk> wrote To VPN at SECURITYFOCUS.COM:
> Philipp,
>
> If you need bandwidth of 50k+ on a 64k line you already have a problem.....
Hm yes.. constructed examples are always weak

> Networks dont have steady state traffic, so you need some headroom. 100%
> spare (ie.e 50% used) is a realistic compromise, but more is better. And the
> next release will be bigger, use more bandwidth, do more things that eat
> bandwidth.
Sure. But you should not leave this headroom for the sake of IPSec,
so if at any time your are on the not-so-safe side of bandwidth, consider
that IPSec has sensible overhead and increase bandwidth.

> you can get by with little or no spare capacity but life will be difficult.
First it's different, second than you have thought. (Dont know if this
translation of a german play of words is understandable)
Tomorrow is another day :>

> Finally, there is always an unpleasant surprise - the last one that got me
> was a month end file transfer which had to be moved in 2 hours because that
> was the timeout for dial in, but it took 3......
Ugh.. change $ISP :} Timeouts (in such short timerange) w/o honouring
a busy line are braindead.

ciao
--
Philipp Buehler, aka fips | sysfive.com GmbH | BOfH | NUCH | <double-p>

#1: Break the clue barrier!
#2: Already had buzzword confuseritis ?

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