The blog post discusses the author’s experience with FlexPod, a virtual desktop infrastructure (VDI) environment, and their discovery of an issue with network performance. Specifically, the author found that the NFS access speed was slow, despite using MTU1500 and 9000, which are commonly recommended settings for VDI environments.

The author notes that this issue is not unique to FlexPod, but rather a common problem in many VDI environments. They suggest that the solution lies in properly configuring the network devices, specifically the NIC device on the ESX host. The author believes that the NIC device should be set to MTU9000 for all network traffic, as this will ensure consistent performance across all virtual machines (VMs).

The author also mentions that they have been advised by vendors to use MTU1500 for VDI environments, but they argue that this is not the best solution. They suggest that using MTU9000 for all network traffic will provide better performance and more consistent results, as it allows for more efficient packet transfer.

In addition, the author notes that there are other factors to consider when configuring a VDI environment, such as the type of storage used and the number of VMs running on the host. They suggest that these factors should also be taken into account when determining the appropriate MTU setting for the environment.

Overall, the author’s experience with FlexPod has led them to question the commonly recommended settings for VDI environments, and they suggest that a more thorough evaluation of the network configuration is necessary to achieve optimal performance.