How can I decrease WiFi MPU?

[konssnok]

Hello,
our application is using MESH WIFI configured as in the example
https://github.com/espressif/esp-idf/tr ... al_network

We then do MQTT mTLS authentication from each node.
This generates a problem because the maximum size of MESH_MPS is 1472, while during the handshake a packet of 1494 is being sent by the server.

Code: Select all

I (16:11:03.990) mesh_netif: Sending to node: 7c:df:a1:e0:69:a4, size: 1494
E (16:11:03.991) mesh_netif: Root: Send with err code 16392 ESP_ERR_MESH_ARGUMENT

To trigger this error i think you can simply try to send a 1480 packet in the example above (from a leaf!)

Does anybody know how to reduce the MPU for the wifi/mtls/mqtt layer?

Thanks

[konssnok]

Maximum segment size is the answer MSS

[bealoon]

你好 该问题解决了吗？