VXLAN troubleshooting
VXLAN is the overlay technology that is used in the VMware NSX environment when it comes to first-time testing and implementation, and most likely, we will end up with a few connectivity issues. Some of the common issues that we might face because of misconfiguration in both virtual and physical networks are as follows:
Virtual machines have no network connectivity, either between other machines in the same VXLAN network, or no egress connection with the physical world
Frequent packet drops getting reported and the applications team facing poor performance issues
Virtual Machines have proper network connectivity on some of the ESXi hosts, but when placed on another set of hosts, there is no connectivity
Normal ping tests are fine, but when checking with VXLAN packets, packet drops occur
Virtual machines in VLAN networks have proper network connectivity; however, VXLAN networks are not working
The majority of network-related issues related to VXLAN will be around the preceding...
