Quality of service for data transmission

A first router, comprising:

• a non-transitory memory comprising instructions;
• and
• a processor in communications with the memory, wherein the processor is configured to execute the instructions to:
• receive a first IPv6 packet for establishing a first connection, wherein the first IPv6 packet includes a first QoS requirement for the first connection in a hop-by-hop extension header of the first IPv6 packet;
• modify the first IPv6 packet by setting first information in the hop-by-hop extension header of the first IPv6 packet, wherein the first information indicates that the first router meets the first QoS requirement;
• and
• send the modified first IPv6 packet to a second router.

A device, comprising:

• a non-transitory memory comprising instructions;
• and
• a processor in communications with the memory, wherein the processor is configured to execute the instructions to:
• send a first IPv6 packet for establishing a first connection to a next hop of the device, wherein the first IPv6 packet includes a first QoS requirement for the first connection in a hop-by-hop extension header of the first IPv6 packet;
• receive a second IPv6 packet for establishing the first connection, wherein the second IPv6 packet includes a destination extension header indicating that a plurality of routers meet the first QoS requirement;
• and
• send IPv6 data packets of the first connection based on the first QoS requirement to the next hop.

A device, comprising:

• a non-transitory memory comprising instructions;
• and
• a processor in communications with the memory, wherein the processor is configured to execute the instructions to:
• receive a first IPv6 packet for establishing a first connection, wherein the first IPv6 packet includes a hop-by-hop extension header indicating that a plurality of routers meet a first QoS requirement for the first connection;
• and
• send a second IPv6 packet for establishing the first connection, wherein the second IPv6 packet includes a destination extension header indicating the plurality of routers meet the first QoS requirement for the first connection.