An architecture for a multimedia peer-to-peer home network allows the simple definition of peer groups, or zones, where each peer is capable of automatically identifying whether other peers are members of the same group, or of another group, by using group labels. The second trench has a second opening width that is larger than the first opening width. The LLL circuit is configured to control a propagation delay between the signal input and the signal output to produce a substantially constant total delay from the signal input to the output terminal.