> On 15 Jan 2015, at 23:16 , Jay Ford <[email protected]> wrote: > > On Thu, 15 Jan 2015, Maarten Carels wrote: >> Investigation learned however that both the 6500 had static entries in their >> MAC address tables for >> 3333.0001.0002 > > That's most likely the result of MLD snooping. In this case "static" means > not "dynamic" (normal traffic-based MAC learning); the switch put the MAC > entry there as part of the MLD snooping mechanism. > > In my experience, MLD snooping is broken in various older hardware & in some > software. You could try disabling it instead of overriding it with your own > static MAC entry. Static entries were my 'workaround'. You directed me to the real cause! Disabling mld by setting: no ipv6 mld snooping removed that idiotic entry
Many thanks, you saved my day! --maarten
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