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T1040RDB: Layer 2 Switch initialization

Question asked by konradgräfe on Aug 19, 2016
Latest reply on Sep 5, 2016 by konradgräfe

Hello NXP team,


I am currently experimenting with the Layer 2 Switch of a T1040RDB board (not T1040D4RDB).


In general, the switch is working fine, but it does not work for test devices that are already plugged in when the T1040RDB boots up (or reboots). In that situation it will neither learn their MAC addresses ("l2switch-cfg mac dump") nor will it switch packets between those devices.


I can fix the situation by either

  • Unplugging and re-plugging the test devices or
  • issuing "ifconfig eth0 down up" on all test devices

However, those "solutions" aren't satisfying of course.


I am using the Linux kernel 'fsl-sdk-v1.9' from Freescale Git.


Is that a known behavior? Can you help me out here?


Please ask me if you need more information.



Konrad Gräfe