Multiple core software forwarding
Approaches for processing packets transmitted within a Passive Optical Network (PON) using executable software. Processing packets within a PON may be performed by classifying one or more packets, of a plurality of received packets, to a particular PON system component, and then processing the one or more packets classified to the same PON system component on a single physical or virtual processor. The one or more packets may be forwarded between a sequence of one or more software stages. The software stages may each be configured to execute on separate logical cores or on a single logical core.
1. A non-transitory computer-readable storage medium that stores one or more sequences of instructions for processing packets transmitted within a Passive Optical Network (PON), which when executed, cause:
classifying one or more packets, of a plurality of received packets, to a particular PON system component; and
processing the one or more packets classified to the same PON system component on a single physical or virtual processor, wherein the one or more packets classified to the same PON system component are forwarded between a sequence of one or more software stages which are each executed on the single physical or virtual processor.
2. The non-transitory computer-readable storage medium of claim 1 , wherein at least one of the one or more software stages is implemented by a single operating system thread.
3. The non-transitory computer-readable storage medium of claim 1 , wherein the plurality of received packets are distributed in a load-balancing manner amongst a set of entities responsible for classifying the plurality of received packets to a particular PON system component.
4. The non-transitory computer-readable storage medium of claim 3 , wherein execution of the one or more sequences of instructions further cause:
after an operational stage in which the plurality of received packets are distributed in a load-balancing manner amongst a set of entities responsible for classifying the plurality of received packets to a particular PON system component, the set of entities classifying the one or more packets to a particular PON system component in a classification stage.
5. The non-transitory computer-readable storage medium of claim 1 , wherein a separate traffic management stage enqueues downstream packets and schedules the downstream packets for transmission.
6. The non-transitory computer-readable storage medium of claim 1 , wherein all packets classified to a service flow in the same PON port are processed by the same instance of a traffic management stage.
7. The non-transitory computer-readable storage medium of claim 1 , wherein the one or more packets classified to the same PON system component are forwarded between a sequence of one or more software stages that each be configured to execute on separate logical cores.
8. The non-transitory computer-readable storage medium of claim 1 , wherein the plurality of received packets are downstream packets.
9. The non-transitory computer-readable storage medium of claim 1 , wherein the plurality of received packets are upstream packets.
10. The non-transitory computer-readable storage medium of claim 1 , wherein said sequence of one or more software stages includes an Upstream Packet Processor (USPP) stage.
11. An apparatus for processing packets transmitted within a Passive Optical Network (PON), comprising:
two or more processors; and
one or more non-transitory computer-readable storage mediums storing one or more sequences of instructions, which when executed, cause:
classifying one or more packets, of a plurality of received packets, to a particular PON system component; and
processing the one or more packets classified to the same PON system component on a single physical or virtual processor of said apparatus, wherein the one or more packets classified to the same PON system component are forwarded between a sequence of one or more software stages which are each executed on the single single physical or virtual processor.
12. The apparatus of claim 11 , wherein the plurality of received packets are distributed in a load-balancing manner amongst a set of entities responsible for classifying the plurality of received packets to a particular PON system component.
13. The apparatus of claim 11 , wherein a separate traffic management stage enqueues downstream packets and schedules the downstream packets for transmission.
14. The apparatus of claim 11 , wherein all packets classified to a service flow in the same PON port are processed by the same instance of a traffic management stage.
15. The apparatus of claim 11 , wherein the one or more packets classified to the same PON system component are forwarded between a sequence of one or more software stages that each be configured to execute on separate logical cores.
16. The apparatus of claim 11 , wherein the plurality of received packets are downstream packets.
17. The apparatus of claim 11 , wherein the plurality of received packets are upstream packets.
18. The apparatus of claim 11 , wherein said sequence of one or more software stages includes an Upstream Packet Processor (USPP) stage.
19. A method for processing packets transmitted within a Passive Optical Network (PON), comprising:
classifying one or more packets, of a plurality of received packets, to a particular PON system component; and
processing the one or more packets classified to the same PON system component on a single physical or virtual processor, wherein said one or more packets classified to the same PON system component are forwarded between a sequence of one or more software stages which are each executed on the single physical or virtual processor.
20. The method of claim 19 , wherein at least one of the one or more software stages is implemented by a single operating system thread.
21. The method of claim 19 , wherein the plurality of received packets are distributed in a load-balancing manner amongst a set of entities responsible for classifying the plurality of received packets to a particular PON system component.
22. The method of claim 21 , further comprising:
after an operational stage in which the plurality of received packets are distributed in a load-balancing manner amongst a set of entities responsible for classifying the plurality of received packets to a particular PON system component, the set of entities classifying the one or more packets to a particular PON system component in a classification stage.
23. The method of claim 19 , wherein a separate traffic management stage enqueues downstream packets and schedules the downstream packets for transmission.
24. The method of claim 19 , wherein all packets classified to a service flow in the same PON port are processed by the same instance of a traffic management stage.
25. The method of claim 19 , wherein the one or more packets classified to the same PON system component are forwarded between a sequence of one or more software stages that each be configured to execute on separate logical cores.
26. The method of claim 19 , wherein the plurality of received packets are downstream packets.
27. The method of claim 19 , wherein the plurality of received packets are upstream packets.
28. The method of claim 19 , wherein said sequence of one or more software stages includes an Upstream Packet Processor (USPP) stage.