ABB RBIP-01, Руководство пользователя

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User interface
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BBMD submenu
When you select the BBMD submenu, the page that provides the settings for the
BACnet/IP Broadcast Management Device (BBMD) opens.
In the BBMD mode, the router module provides the BBMD functionality to the local
subnetwork.
Global Options, Two-hop forwarding
In the two-hop mode, the IP routers are not involved in the broadcast transport. In
this mode, the broadcast messages are transported to BBMD and BBMD sends the
forwarded broadcast to the local network.
In the two-hop mode, the Broadcast Distribution Table (BDT) contains the address of
the external BBMD and the Subnet/Distribution Mask specifies the distribution of the
forwarded broadcast to the local network for each connected BBMD.
1. If you wish that your BACnet/IP router works in the two-hop mode, select the
Two-hop forwarding check box.
2. For adding entries to the Broadcast Distribution table, see the following
procedure.