You can cause a lot of switches to degrate to HUB mode by overloading their
arp cache mac address table thingy. (Fun for packet sniffing when you've got
a card that can change its mac address in software. Send packets originating
from a few thousand different mac IDs and watch the switch throw up its hands
and go "AAAAAH!". Sniffing the right init sequence for a pppoe connection
with nonstandard authentication can be a bit difficult otherwise, with modern
hardware... :)
I haven't tried it on a very wide variety of manufacturer's switches, though.
And I dunno how that relates to CRC behavior...
Rob
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