US patent 5473599

[nick at foobar.org (Nick Hilliard)]

On 08/05/2014 12:09, Henning Brauer wrote:
> my switches seem to deal with that, wether they have special handling
> for that mac addr range or not i dunno.

I've seen this problem cause downtime on production networks.

fyi, it will probably work fine on hubs, but not on switches.

> again, stress the fact that afair we have gotten zero reports about
> that "issue" for 10 years, it obviously means that either
> 1) a vast majority of switches deal with it just fine
> 2) people know that vhids shouldn't clash and avoid that

https://www.google.com/search?q=vrrp+carp+incompatible

Several of the results refer to openbsd mailing list postings.

Nick