Configuring Jumbo Frames

To send/receive Jumbo packets on a network interface, you need to enable Jumbo mode and to select the maximum allowed size for those Jumbo packets. Maximum Packet Size includes 14 bytes of Ethernet header. It does not include FCS. The IP MTU must be configured to be less than or equal to (Maximum Packet Size – 14).

The TCP/IP Stack supports Path MTU Discovery. eRTOS devices will successfully communicate over TCP with another device that supports Path MTU Discovery, even if MTUs are configured to different sizes.

Note: All tested drivers support Jumbo Packets. To view a list of supported network cards, see Supported NICs.