Block Gap Synchronisation

In Ambr's design mode, the Send and Receive modules are transmitted by UDP in order to keep the amount of data transmitted over the network to a minimum. However, UDP transmission does not guarantee reliability, and the module does not guarantee secure reception. So the Ambr system node has the following two options:

1. Discard this module as spam sent by the attacking node.

2. The sender is required to retransmit, using secure and reliable TCP transmissions.

At this point, the attacker sends out a large number of junk modules, which will increase the number of TCP transmissions and increase the network load, which will affect the real-time and effectiveness of the Ambr system. Ambr responds as follows:

1. The spam module receives broadcasts from the verifier and counts the responses.

2. If the vote falls below the threshold, the system will discard the junk module.