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https://www.briefmenow.org/vmware/which-two-performance-related-options-do-virtual-switches-support/
Nov 20, 2013 · – do the physical switches support this as its asking for similar features in physical and virtual switches – does LACP control performance features as QoS and Traffic Shapping 0
https://www.net.in.tum.de/publications/papers/Open-vSwitch-CloudNet-14.pdf
Similar prototypes to VALE exist [18], [4]. Virtual switches in combination with guest OSes like ClickOS [4] achieve notable performance of packet processing in VMs. All these techniques rely on modified drivers, VM environ- ments, and network stacks, and only work with certain NICs.
https://www.altaro.com/hyper-v/the-hyper-v-virtual-switch-explained-part-1/
Sep 26, 2019 · Internal and private virtual switches do not provide a performance boost over the external virtual switch. This is because the virtual switch is smart enough to not use the physical network when delivering packets from one virtual adapter to the MAC address of another virtual adapter on the same virtual switch.Author: Eric Siron
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk101214
When promiscuous mode is enabled at the portgroup level, objects defined within that portgroup have the option of receiving all incoming traffic on the vSwitch. Interfaces and virtual machines within the portgroup will be able to see all traffic passing on the vSwitch, but all other portgroups within the same virtual switch do not. Forged Transmit
https://social.technet.microsoft.com/Forums/windows/en-US/7aa7fa4f-6c5d-413e-8ee7-02520238b536/hyperv-virtual-switch-causes-slow-download-speeds
Aug 14, 2018 · So I did what any sane person would do, and I wiped the entire machine and reinstalled Windows 10 Pro. I ran all the updates, and finally, it let me create the External Virtual Switch. Except now it tanks my Host's download speed to 1 mb/s on an 800 mb/s line. When I remove the virtual switch, my download speed is restored.
https://blogs.technet.microsoft.com/cedward/2011/04/12/hyper-v-networking-optimizations-part-2-of-6-vmq/
Apr 12, 2011 · Some drivers that support VMQ and RSS cannot use these features simultaneously. Such drivers cannot switch between RSS support and VMQ support without reinitializing the driver. The operating system uses the RSS feature when the NIC is bound to the TCP/IP stack, or the VMQ feature when the NIC is bound to the Hyper-V virtual switch driver.
https://www.altaro.com/hyper-v/23-best-practices-improve-hyper-v-vm-performance/
Jul 10, 2014 · 15. Always install the Integration Components on the supported virtual machines. Integration Components provide VMBUS and VSP/VSC design to improve the performance of virtual machines running on the Hyper-V Server. Always install the Integration Components on supported Guest operating systems.
https://community.spiceworks.com/topic/1970632-hyper-v-network-optimisation
Mar 07, 2017 · - Do VMs need their own private network switch, separate from a "external" virtual switch. We have a small (<50) environment using 3 Hyper-V hosts. 2 are used for production services and 1 is used to host testing environments and replication backups.
https://social.technet.microsoft.com/Forums/windowsserver/en-US/cc0af768-5031-4e1d-9e5a-edec6f3173c0/what-settings-for-hyperv-virtual-switch
May 21, 2014 · The recommended procedure is to have the option unchecked and give the host machine its own NIC (ie one not linked to a virtual switch). The NIC linked to the virtual switch is then exclusively used by the vms.
https://communities.vmware.com/thread/499178
Jan 08, 2015 · Correct. the vmxnet 3 adapter has a virtual connection to the virtual switch at 10Gbps. But if the physical link from the host to the physical network is through four 1 Gbps uplinks. However, that does not give you 4 Gbps of throughput, it gives you 4 1 Gbps throughputs. Think of it like a highway.
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