Poor mans TAP

Dovid Bender dovid at telecurve.com
Mon Oct 7 16:56:32 UTC 2019


John,

We used cisco in the past. The issue we have is the switches that will
mirror to more than one port  have fans pushing the heat into the cold
isle. From what I was able to see Cisco does not have any AFO switches that
will mirror to more than one port.



On Mon, Oct 7, 2019 at 10:29 AM John Kristoff <jtk at depaul.edu> wrote:

> On Mon, 7 Oct 2019 14:16:31 +0000
> Dovid Bender <dovid at telecurve.com> wrote:
>
> > Funds at my 9-5 are limited. Has anyone tried this and how well does
> > it work? We plan on mirroring about 800 megs of traffic at peak.
> >
> https://www.amazon.com/Dualcomm-1000Base-T-Ethernet-Regeneration-Network/dp/B0055M5JL8?ref_=ast_bbp_dp
>
> I don't know if it still works on modern switches, but many years ago I
> was able to have Cisco LAN switches configured such that a single L2
> MAC address could be statically associated with multiple interfaces
> (i.e. router interface).  This made it possible to duplicate all
> traffic to destined to one station to appear on two (maybe more?) ports.
> You might try this also if you have an unused and available switch.
>
> John
>
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