Prioritizing flows in software defined networks
Described herein are systems, methods, and software to enhance network traffic management. In one implementation, a method of operating a network interface system on a host computing system includes receiving a plurality of network packets and, for each packet in the plurality of network packets, identifying whether the packet comprises a control packet for fault detection in a software defined network (SDN). The method further includes prioritizing, for processing by a main processing system of the computing system, each packet in the plurality of network packets based on whether the packet comprises a control packet for fault detection in a SDN.
1. A method of operating a network interface system on a computing system to manage network traffic, the method comprising:
receiving a plurality of network packets;
for each packet in the plurality of network packets, identifying whether the packet comprises a control packet for fault detection in a software defined network (SDN); and
prioritizing, for processing by a main processing system of the computing system, each packet in the plurality of network packets based on whether the packet comprises a control packet for fault detection in a SDN, wherein the prioritizing comprises:
in response to identifying that the packet comprises a control packet, placing the packet in a first processing queue for the main processing system of the computing system; and
in response to identifying that the packet does not comprise a control packet, placing the packet in at least one secondary processing queue for the main processing system.
2. The method of claim 1 , wherein identifying whether the packet comprises a control packet for fault detection in a SDN comprises identifying whether the packet comprises a Bidirectional Forwarding Detection packet.
3. The method of claim 1 , wherein identifying whether the packet comprises a control packet for fault detection in a SDN comprises identifying whether the packet comprises a Border Gateway Protocol packet.
4. The method of claim 1 , wherein the first processing queue is allocated a first set of processing resources for the main processing system, and wherein the at least one secondary processing queue is allocated a second set of processing resources for the main processing system.
5. The method of claim 4 , wherein the first set of processing resources comprise a first processing core allocation, a first clock cycle allocation, or a first memory allocation, and wherein the second set of processing resources comprise a second processing core allocation, a second clock cycle allocation, or a second memory allocation.
6. The method of claim 1 , wherein the plurality of network packets is encapsulated in a plurality of tunneling packets, and wherein identifying whether the packet comprises a control packet comprises identifying whether the packet comprises a control packet based on an identifier within a header for a corresponding tunneling packet.
7. The method of claim 1 , wherein the computing system comprises a first host computing system of a computing environment, and wherein receiving the plurality of network packets comprises receiving the plurality of network packets from at least one second host computing system of the computing environment.
8. A computing apparatus comprising:
one or more non-transitory computer readable storage media;
a processing system operatively coupled to the one or more non-transitory computer readable storage media;
program instructions stored on the one or more non-transitory computer readable storage media to manage network traffic received at a physical network interface for a host computing system that, when read and executed by a processing system of the physical network interface, direct the processing system to at least:
receive a plurality of network packets;
for each packet in the plurality of network packets, identify whether the packet comprises a control packet for fault detection in a software defined network (SDN); and
prioritize, for processing by a main processing system of the host computing system, each packet in the plurality of network packets based on whether the packet comprises a control packet for fault detection in the SDN, wherein the prioritizing comprises:
in response to identifying that the packet comprises a control packet, place the packet in a first processing queue for the main processing system of the host computing system; and
in response to identifying that the packet does not comprise a control packet, place the packet in at least one secondary queue for the main processing system.
9. The computing apparatus of claim 8 , wherein the program instructions to identify whether the packet comprises a control packet for fault detection in a SDN direct the processing system to identify whether the packet comprises a Bidirectional Forwarding Detection packet.
10. The computing apparatus of claim 8 , wherein the program instructions to identify whether the packet comprises a control packet for fault detection in a SDN direct the processing system to identify whether the packet comprises a Border Gateway Protocol packet.
11. The computing apparatus of claim 8 , wherein the first processing queue is allocated a first set of processing resources for the main processing system, and wherein the at least one secondary processing queue is allocated a second set of processing resources for the main processing system.
12. The computing apparatus of claim 11 , wherein the first set of processing resources comprise a first processing core allocation, a first clock cycle allocation, or a first memory allocation, and wherein the second set of processing resources comprise a second processing core allocation, a second clock cycle allocation, or a second memory allocation.
13. The computing apparatus of claim 8 , the plurality of network packets is encapsulated in a plurality of tunneling packets, and wherein identifying whether the packet comprises a control packet comprises identifying whether the packet comprises a control packet based on an identifier within a header for a corresponding tunneling packet.
14. The computing apparatus of claim 8 , wherein receiving the plurality of network packets comprises receiving the plurality of network packets from at least one second host computing system.
15. A computing system to manage received network traffic comprising:
a main processing system configured to execute at least one virtual node; and
a network interface system communicatively coupled to the main processing system and configured to:
receive a plurality of network packets;
for each packet in the plurality of network packets, identify when the packet comprises a control packet for fault detection in a software defined network (SDN); and
prioritize, for processing by the main processing system, each packet in the plurality of packets based on whether the packet comprises a control packet for fault detection in a SDN, wherein the prioritizing comprises:
when the packet comprises a control packet, place the packet in a first processing queue of a plurality of processing queues for the main processing system, the first processing queue allocated to process at least control packets for fault detection; and
when the packet does not comprise a control packet, place the packet in at least one secondary processing queue of the plurality of processing queues.
16. The computing system of claim 15 , wherein the at least one virtual node comprises at least one virtual machine or at least one container.
17. The computing system of claim 15 , wherein identifying whether the packet comprises a control packet for fault detection in a SDN comprises identifying whether the packet comprises a Bidirectional Forwarding Detection packet or a Border Gateway Protocol packet.