Depending on the switch configuration mode and the load distribution algorithm, NIC teaming presents either the smallest number of available and supported queues by any adapter in the team Min-Queues mode or the total number of queues available across all team members Sum-of-Queues mode. If the team is in Switch-Independent teaming mode and you set the load distribution to Hyper-V Port mode or Dynamic mode, the number of queues reported is the sum of all the queues available from the team members Sum-of-Queues mode.
Otherwise, the number of queues reported is the smallest number of queues supported by any member of the team Min-Queues mode. When the switch-independent team is in Hyper-V Port mode or Dynamic mode the inbound traffic for a Hyper-V switch port VM always arrives on the same team member. When the team is in any switch dependent mode static teaming or LACP teaming , the switch that the team is connected to controls the inbound traffic distribution.
The host's NIC Teaming software can't predict which team member gets the inbound traffic for a VM and it may be that the switch distributes the traffic for a VM across all team members. When the team is in switch-independent mode and uses address hash load balancing, the inbound traffic always comes in on one NIC the primary team member - all of it on just one team member. Since other team members aren't dealing with inbound traffic, they get programmed with the same queues as the primary member so that if the primary member fails, any other team member can be used to pick up the inbound traffic, and the queues are already in place.
Following are a few VMQ settings that provide better system performance. The first physical processor, Core 0 logical processors 0 and 1 , typically does most of the system processing so the network processing should steer away from this physical processor.
Some machine architectures don't have two logical processors per physical processor, so for such machines, the base processor should be greater than or equal to 1. If in doubt assume your host is using a 2 logical processor per physical processor architecture. If the team is in Sum-of-Queues mode the team members' processors should be non-overlapping.
For example, in a 4-core host 8 logical processors with a team of 2 10Gbps NICs, you could set the first one to use the base processor of 2 and to use 4 cores; the second would be set to use base processor 6 and use 2 cores.
Configure your environment using the following guidelines:. Before you enable NIC Teaming, configure the physical switch ports connected to the teaming host to use trunk promiscuous mode. The physical switch should pass all traffic to the host for filtering without modifying the traffic. Never team these ports in the VM because doing so causes network communication problems.
It's easily possible to configure the different VFs to be on different VLANs and doing so causes network communication problems. Rename interfaces by using the Windows PowerShell command Rename-NetAdapter or by performing the following procedure:. Best Answer. ErikN This person is a verified professional. Verify your account to enable IT peers to see that you are a professional.
View this "Best Answer" in the replies below ». Popular Topics in Windows 8. Spiceworks Help Desk. The help desk software for IT. Track users' IT needs, easily, and with only the features you need.
Learn More ». Sounds like its not possible with Windows 8. Omendata May 13, at UTC. This is very cool, as it allows the virtual machines to take advantage of the underlying hardware for highly secure applications.
It allows for a virtual machine to have near native IO against the physical NIC, allowing applications that require very low latency to work inside of virtual machines. What does it require? A maximum of 64k of packets are coalesced into a single larger packet for processing.
These two capabilities are essentially allowing physical server or virtual machines to get the resources they need to manage their network queues most effectively. This offloading results in the CPU usage being only a fraction of what it was, as well as general improvements in latency. Happy virtualizing! Share this article.
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