On 2009-09-09, at 04:56, Bjørn Mork wrote:

Joe Abley <jab...@hopcount.ca> writes:

interface FastEthernet0/1
description facing the exchange point
bridge-group 1
bridge-group 1 output-pattern-list 1100

And this access list does allow e.g. IPv6 multicast frames?

That access list is just cleaning frames being sent to the exchange to make sure that weird crap doesn't leak over there. The exchange point in question only permits one nominated MAC per port, and will shut down the port automagically if it hears more.

access-list 1100 permit 0023.9c72.d700 0000.0000.0000 0000.0000.0000 ffff.ffff.ffff

That's the complete list, as configured.

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