Patent ID: 11895027
Assignee: PENSANDO SYSTEMS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A method comprising:
receiving a first packet that includes a source address in a source address field and includes a destination address in a destination address field;
selecting a selected service node that is one of a plurality of service nodes in a circular replication chain that replicates service state information;
routing the first packet to the selected service node;
using, by the selected service node, the service state information to produce a first response packet that is responsive to the first packet;
changing the service state information of the selected service node while producing the first response packet;
producing a first sync packet that a downstream peer that is one of the service nodes can use to update the service state information of the downstream peer based on the change caused by producing the first response packet;
sending the first sync packet to the downstream peer;
transmitting, by the selected service node, the first response packet to a source at the source address after the selected service node receives the first sync packet from an upstream peer;
using a second sync packet that is received from the upstream peer that is one of the service nodes to change the service state information of the selected service node; and
sending the second sync packet to the downstream peer.