This daemon makes GVRP announcements of all VLAN interfaces on a FreeBSD system. GVRP is the GARP VLAN Registration Protocol, defined in IEEE 802.1Q (VLANS). GARP is the Generic Attribute Registration Protocol, defined in 802.1D (bridging). The protocol allows switches or trunked end stations to announce to the network what VLANs should be forwarded to that device. The effect is that VLANs only need to be configured on the member ports; the protocol figures out which trunk ports are effectively also members. The daemon just announces the VLANs statically configured on each interface to that interface. It does not listen for inbound GVRP announcements.
