On Feb 2, 2010, at 6:00 PM, Nicolas Droux <Nicolas.Droux at sun.com> wrote:
> Yes there is the performance issue, but I'm more concerned that > enabling the feature by default would cause these GVRP messages to > start propagating on the networks of our customers who have > configured VLANs. > > It's fine to use these messages in an environment which is expecting > them to perform VLAN configuration, such as a cloud-like > infrastructure. However GVRP messages might not be welcome in other > environments where all VLAN configuration is done from the switch > side, and no such messages are expected to be seen on the network. They don't propagate. They're in a multicast range that, like STP, isn't forwarded by bridges. Either the bridge uses them, or doesn't. The concern I have is that GVRP is non-deployable because it isn't ubiquitous nor the default, and we're adding to that. IGMP, which is analogous, works because the clients are on board.
