Balluff - BVS CA-GT Technical Documentation
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The MTU is a common configuration value of mostly all Ethernet adapters. On Linux systems, the RoCEv2 Packet Size is usually set by driver installation to an appropriate value. In general, the MTU must not be smaller than the RoCEv2 Packet Size. The resulting packet size for RoCEv2 data transfers is negotiated at connection establishment as part of the RoCEv2 protocol. Best practice is to set the MTU = 9000.
On the network interface card's side, this might look like this:
Setting MTU on Linux system with Gnome Desktop
Verifying the current MTU for an Ethernet adapter with the console command ip a shows the following output: