Patent ID: 8780706

Claim:
A method comprising: at a network device, sending into a network a request to be connected to a particular multicast source-group pair for a phasor measurement data stream comprising packets containing phasor measurement data; receiving the phasor measurement data stream for the particular multicast source-group pair; comparing the source-group pair information against stored data specifying handling rules for packets associated with phasor measurement data streams; modifying the packets in the received phasor measurement data stream when there are handling rules in the stored data for the particular multicast source-group pair of the received phasor measurement data stream, wherein the modifying comprises modifying a payload field of the packets that contains phasor measurement data; and re-originating the packets for the phasor measurement data stream for the particular multicast source-group pair with a new multicast source-group pair and sending the packets back into the network.