Table 19. BACnet Virtual Link Control (bvlc)
| Field | Field Name | Type | Description |
|---|
| bvlc.bdt_ip | IP | IPv4 address | BDT IP |
| bvlc.bdt_mask | Mask | Byte array | BDT Broadcast Distribution Mask |
| bvlc.bdt_port | Port | Unsigned 16-bit integer | BDT Port |
| bvlc.fdt_ip | IP | IPv4 address | FDT IP |
| bvlc.fdt_port | Port | Unsigned 16-bit integer | FDT Port |
| bvlc.fdt_timeout | Timeout | Unsigned 16-bit integer | Foreign Device Timeout (seconds) |
| bvlc.fdt_ttl | TTL | Unsigned 16-bit integer | Foreign Device Time To Live |
| bvlc.function | Function | Unsigned 8-bit integer | BLVC Function |
| bvlc.fwd_ip | IP | IPv4 address | FWD IP |
| bvlc.fwd_port | Port | Unsigned 16-bit integer | FWD Port |
| bvlc.length | Length | Unsigned 16-bit integer | Length of BVLC |
| bvlc.reg_ttl | TTL | Unsigned 16-bit integer | Foreign Device Time To Live |
| bvlc.result | Result | Unsigned 16-bit integer | Result Code |
| bvlc.type | Type | Unsigned 8-bit integer | Type |