liqinhuixm opened a new pull request, #12431:
URL: https://github.com/apache/nuttx/pull/12431
## Summary
Support the jumbo frame in the sim.
- First, support setting mtu on sim;
- Then, optimize the use of iob by jumbo frame packets, and pre-alloc an iob
in the protocol stack for each jumbo frame packet, supporting the ICMP, UDP and
TCP.
## Impact
The sim can support the JUMBO frame packets.
## Testing
- First, configure the options,
'''
CONFIG_SIM_NETDEV_MTU = 3000
CONFIG_NET_JUMBO_FRAME=y
'''
- Then, we use the ICMP to test.
'''
ping -s 3000 10.0.1.1
'''
- Finally, capture packets on nuttx0 using the Wireshark. We should be able
to see ICMP packets with the length of 3042 bytes.
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