Utilizing upstream routing of multicast traffic from redundant multicast sources to increase multicast resiliency and availability

A network device, comprising:

• one or more memories;
• and
• one or more processors, communicatively coupled to the one or more memories, to:
• select a primary source device for multicast traffic and a secondary source device for the multicast traffic,
• wherein the multicast traffic is provided to one or more endpoint devices communicating with a network,
• wherein the multicast traffic of the primary source device is redundant of the multicast traffic of the secondary source device, and
• wherein the one or more processors, when selecting the primary source device for the multicast traffic and the secondary source device for the multicast traffic, are to:
• assign priorities to a plurality of secondary source devices based on a preference metric, and
• select the secondary source device for the multicast traffic, from the plurality of secondary source devices, based on the priorities assigned to the plurality of secondary source devices;
• provide a first join request to the primary source device,
• wherein the first join request includes information that causes a primary path to be provided from the primary source device and through the network;
• provide a second join request to the secondary source device,
• wherein the second join request includes information that causes a secondary path to be provided from the secondary source device and through the network;
• receive the multicast traffic from:
• the primary source device via the primary path, and
• the secondary source device via the secondary path;
• monitor an operational status of the primary source device;
• determine that the primary source device is operational based on the operational status of the primary source device;
• provide the multicast traffic received from the primary source device to the one or more endpoint devices;
• and
• prevent the multicast traffic received from the secondary source device from reaching the one or more endpoint devices.

A non-transitory computer-readable medium storing instructions, the instructions comprising:

• one or more instructions that, when executed by one or more processors, cause the one or more processors to:
• select a primary source device for multicast traffic and a secondary source device for the multicast traffic,
• wherein the multicast traffic is provided to one or more endpoint devices communicating with a network, and
• wherein the primary source device and the secondary source device are redundant sources of the multicast traffic;
• provide a first join request to the primary source device,
• wherein the first join request includes information that causes a primary path to be provided from the primary source device and through the network;
• provide a second join request to the secondary source device,
• wherein the second join request includes information that causes a secondary path to be provided from the secondary source device and through the network;
• receive the multicast traffic from:
• the primary source device via the primary path, and
• the secondary source device via the secondary path;
• provide the multicast traffic received from the primary source device to the one or more endpoint devices;
• prevent the multicast traffic received from the secondary source device from reaching the one or more endpoint devices,
• wherein the one or more instructions, that cause the one or more processors to prevent the multicast traffic received from the secondary source device from reaching the one or more endpoint devices, cause the one or more processors to:
• program the secondary path with a particular reverse path forwarding (RPF) interface,
• determine that the multicast traffic received from the secondary source device fails an RPF check based on the particular RPF interface, and
• prevent the multicast traffic received from the secondary source device from reaching the one or more endpoint devices based on the multicast traffic received from the secondary source device failing the RPF check;
• determine that the primary source device is non-operational based on an operational status of the primary source device;
• and
• provide the multicast traffic received from the secondary source device to the one or more endpoint devices based on determining that the primary source device is non-operational.