Hi :)

Thanks for figuring all this out.  The longer I 'run' this project,
the more oddities of commercial switch H/W I get to hear about.
Perhaps we should add a page to the bridge site where these
things are documented?

Mind writing a short 'summary for the unwashed masses' of
your findings?


cheers,
Lennert


On Sat, Mar 30, 2002 at 11:06:10PM +0000, Matt Critcher wrote:

> word to the wise
> 
> HP4000 switches, when multiple vlans are enabled, and one has a monitor port set
> up, combined with 2 bridges in a linux box, cause all sorts of problems.
> 
> after looking around for the last 8 hours solid i found that for some very
> strange reason all packets on the network that were headed off this campus got
> as far as the switch with the monitor port.  which happened to be one before the
> router.  i guess the muddled mac addresses (since both bridges are on the same
> set of switches on different vlans and the same mac shows up in both bridges)
> were causing fits with the switch.  when the monitor port was on, you could ping
> nothing on that switch, but could do just fine on each switch below it.  turn it
> off, and all works great (and it was thoroughly tested this time -- more than
> just a ping).  turn it back on, and it breaks.
> 
> i know i have spammed up the list with a couple of rather long emails in the
> last week, and my aplolgies for that.  i just hope this thread saves one person
> the headache i've had for the past week.
> 
> let me know if i can be of help to anyone or if someone wants more info on these
> switches.
> 
> thanks so much for your patience.
> 
> matt
> 
> 
> ---------------------------------------------
> Visit http://www.neark.org
> 
> 
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