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Re: Peering VLANs and MAC addresses
- From: Niels Bakker
- Date: Fri Nov 11 08:45:43 2005
* firstname.lastname@example.org (Randy Bush) [Thu 10 Nov 2005, 03:35 CET]:
[ the voice of experience speaks ]
thanks! this approaches reassuring. why does it tolerate 100
macs? at first blush, i would think three or four would be a
bad enough sign.
I've seen several cases where a router goes bonkers and spews a bunch of
broken frames - more than four but usually less than a hundred. The
frames get dropped but the port doesn't get shut down. I have a hunch
that it's connected with bad memory in the router, a pointer going awry
somewhere, using some payload to fill an Ethernet frame header.
Usually it goes away by itself without further outaged conditions.
So this could be a reason to set the limit at 100 instead of 4...
another could be that the default in Foundry MG8 firmware is 128.
Also, AMS-IX implemented port security almost three years ago (we've
presented about it at AMS-IX Technical Meetings, RIPE meetings and
"Calling religion a drug is an insult to drugs everywhere.
Religion is more like the placebo of the masses."
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