Hi, I have two ports in my OVS bridge. I receive packets from one port (portA) and i send them out of the other (portB). When i send out the packets, they are VXLAN tunneled to the other end.
Now, the default MTU of all ports (including the bridge port) is 1500 in my setup. The issue is that when i get a 1500 byte packet on portA, i try to push it out on portB after slapping on the VXLAN headers. This results in a packet size thats greater than what portB can handle, and hence the packets are dropped. I know that OVS does not handle IP fragmentation/reassembly, so how do we deal with this situation? I dont think we can rely on path MTU discovery since not all applications do PMTU before spewing out packets. Any ideas, anybody? Warm regards, Dave
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