Load Considerations

Let's take a moment and determine where AWM takes up load:

• Source Subnet: Validators sign the message
• Relayer: Signature aggregation
• Destination Subnet: Validators verify the message using the BLS Public Key registry on the P-Chain

There is no record of the network communication, the signatures, or the message itself on the P-Chain. It solely functions as a registry of the BLS public keys where the destination Subnet validators read from. Since they each already validate the primary network, they are already tracking the P-Chain.

Thus, sending messages from one Subnet to another does not put any load on the P-Chain or another part of the Primary Network. This is a crucial feature, as there is no bottleneck or dependencies between Subnets for cross-chain communication.