This read-write field sets how frames destined for the reserved multicast address 01:80:C2:00:00:06 are disposed of at the Ethernet flow point covered by this CPD profile. Because that address lies in the bridge-reserved control range, the disposition setting decides whether the equipment processes those frames itself, silently drops them, or tunnels them across to the far end unmodified. For example, when provisioning an EVC that must remain transparent to a customer's own Layer-2 control protocols, an engineer would set this disposition to tunnel rather than peer.