@startuml box "Gossip Communicate" #LightBlue participant NodeA participant NodeB end box participant NodeC participant NodeD

NodeA -> NodeB: GossipDigestSyn NodeB -> NodeA: GossipDigestAck activate NodeA NodeA -> NodeC: Echo NodeA -> NodeD: Echo NodeA -> NodeB: GossipDigestAck2 deactivate NodeA activate NodeB NodeB -> NodeC: Echo NodeB -> NodeD: Echo deactivate NodeB @enduml