[mrtg] Re: Any ethernet switch which always floods?

[Tyler J. Frederick]

I've spanned entire VLAN's in our datacenter with no issues, and we're a
fairly busy website with lots of traffic.

tf.

-- 
Tyler J. Frederick
Systems Engineer/CCSE
Sportsline.com, Inc.

On Thu, 18 Oct 2001, SHOLAAS Margaret G wrote:

>
> Right now we're in a test situation without all the taps in place that we
> ultimately want to use, so CPU is pretty low. I can't see the real-world
> effect of SPANing (or not) to multiple ports with lots of data pouring into
> the switch. Cisco TAC has told me that SPAN eats up cycles, and at some
> point I could lose packets because the switch would be overwhelmed. I'm
> trying to make the setup as economical as possible to minimize the chance of
> that happening, but it's possible what we actually need won't tax the box
> beyond its capabilities.
>
> -----Original Message-----
> From: Paul C. Williamson [mailto:pwilliamson at mandtbank.com]
>
> Do you know what the CPU is doing?  You could monitor
> the effect of the Span on the cpu if you can get a good
> baseline without it...
>
> Paul
>
> >>> SHOLAAS Margaret G <Margaret.G.SHOLAAS at ris.lane.or.us> 10/16/01 11:04PM
> >>>
>
> I am using a Cisco switch. I'm trying to avoid mirroring (SPAN), since it's
> more CPU intensive than flooding, but I may not be able to. Thanks for the
> suggestion, though.
>
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