A customer has an HPE FlexFabric data center network, which was working correctly. Then the customer added VMware NSX, and now VM-to-VM traffic in logical networks is not being forwarded by the network infrastructure. Could this be the issue? The MTU on the VXLAN transport VLAN on the FlexFabric switches is smaller than that used by the VXLAN transport.

Question

Quizplus · Accepted Answer

VXLAN encapsulation adds extra overhead to packets, increasing their size. If the MTU on the transport VLAN is too small, it can cause packet fragmentation or drops, preventing VM-to-VM traffic from being forwarded correctly.

A Customer Has an HPE FlexFabric Data Center Network, Which