MTU
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vSphere 6.5
VMware vSphere 6.5 Change vmkernel MTU size
When dealing with VMkernel ports in vSphere 6.5 for most use cases for performance, we want to enable jumbo frames on the vmkernel ports to allow for less fragmentation of the packets for iSCSI, vMotion, and so forth. Let’s take…
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NSX
Troubleshooting NSX VXLAN jumbo frames in nested lab
In working recently in a nested VMware environment running three clusters and NSX, I ran into a jumbo frames issue with VXLAN connectivity across the clusters. I was simulating different WAN/subnet environments using an Untangle appliance as a router in…
