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That's true, you'd have to look at the traffic levels. How do the network
taps handle full-duplex? I thought they'd use a normal ethernet link to the
monitor? If so they'd need a buffer to queue packets for forwarding to the
monitor (for when transmissions are happening in both directions at once),
and their uplink would need to run at twice the network speed, unless they
can be configured to only monitor traffic in one direction, or if they use a
different type of link?
Darryl.
> -----Original Message-----
> From: Marko Laakso [SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, December 08, 1999 6:43 PM
> To: Luff, Darryl
> Cc: [EMAIL PROTECTED]
> Subject: Re: Switched network
>
>
> [From: "Luff, Darryl" <[EMAIL PROTECTED]>]
> [Subject: RE: Switched network]
>
> [snip]
> If you're monitoring a point-to-point link between a firewall and a
> switch,
> inserting a hub wont make much difference to performance. The traffic is
> the
> same (barring traffic generated by the monitor itself, which is
> hopefully
> fairly light).
>
> Unfortunately you loose full duplex with a hub (half-duplex only due
> to the principle), which is a major performance hit on heavily loaded
> links. ;)
>
> /Marko - [[EMAIL PROTECTED] preferred for personal email]
