This image shows a Redis cluster consisting of three master nodes and three replica nodes. The master and replicate nodes are distributed in separate fault domains within an availability domain in an Oracle Cloud region. The entire cluster is attached to a single regional subnet 10.0.1.0/24 in the VCN 10.0.0.0/16. A security list regulates network traffic to and from the subnet. A route table contains rules to direct outbound traffic from the VCN. The master and replica nodes in the cluster communicate using a gossip protocol.