Global Communication – Broadcast Announce Message (BAM)
Broadcast Announce Message (BAM)
The sender alone manages the flow control. The message is always sent to all nodes. A receiver cannot intervene in the communication. If the receiver misses a message, it cannot signal this. The receiver must wait for a new message, if necessary.
Because the receiver is not able to influence the flow control in the BAM protocol, the sender must maintain a minimum interval between the individual packets. This is 50-200 ms. This allows possible slow network nodes to follow the communication.