Method and network node for sending and obtaining assert packet

A method for sending an assert message in a multicast network, comprising:

• determining, by a network node, a first assert record set based on one rendezvous point (RP) address, wherein the first assert record set comprises a plurality of assert records, each of the plurality of assert records comprises one multicast source address and one multicast group address, and each of the plurality of assert records comprises a first multicast group address;
• determining, by the network node, a second assert record set based on the RP address, wherein the second assert record set comprises a plurality of assert records, each assert record in the second assert record set comprises one multicast source address and one multicast group address, each of the plurality of assert records in the second assert record set comprises a second multicast group address, the assert message further comprises the second multicast group address, and the first multicast group address is different from the second multicast group address;
• generating, by the network node, one assert message, wherein the assert message carries the RP address, the first multicast group address, and a plurality of multicast source addresses;
• and
• sending, by the network node, the assert message in a multicast mode.

A device for sending an assert message, comprising:

• a processor;
• and
• a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions for execution by the processor, wherein the processor executes the programming instructions to cause the device to:
• determine a plurality of assert records based on one multicast source address, wherein each of the plurality of assert records comprises the multicast source address and one multicast group address, and multicast group addresses comprised in different assert records in the plurality of assert records are different from each other, wherein the plurality of assert records include a first assert record and a second assert record in a first assert record set, and wherein the first assert record and the second assert record have same multicast source address;
• generate one assert message based on the plurality of assert records, wherein the assert message comprises the multicast source address and the multicast group addresses in the plurality of assert records;
• and
• send the assert message in a multicast mode.

A device for sending an assert message in a multicast network, comprising:

• a processor;
• and
• a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions for execution by the processor, wherein the processor executes the programming instructions to cause the device to:
• determine a first assert record set based on one rendezvous point (RP) address, wherein the first assert record set comprises a plurality of assert records, each of the plurality of assert records comprises one multicast source address and one multicast group address, and each of the plurality of assert records comprises a first multicast group address;
• determine a second assert record set based on the RP address, wherein the second assert record set comprises a plurality of assert records, each assert record in the second assert record set comprises one multicast source address and one multicast group address, each of the plurality of assert records in the second assert record set comprises a second multicast group address, and wherein the assert message further comprises the second multicast group address, and the first multicast group address is different from the second multicast group address;
• generate one assert message, wherein the assert message carries the RP address, the first multicast group address, and a plurality of multicast source addresses;
• and
• send the assert message in a multicast mode.