test_net test fail in the calico network env

[xiaoge1001]

Bug report

RuntimeError: duplicate mac found! both 'calixxx' and 'caliyyy' have mac 'ee:ee:ee:ee:ee:ee'.

Steps to reproduce the problem

pytest tests/unittests/test_net.py

Environment details

• Cloud-init version:23.4.1
• Operating System Distribution:openeuler

cloud-init logs

2024-02-27 10:05:36                 msg = "duplicate mac found! both '%s' and '%s' have mac '%s'." % (
2024-02-27 10:05:36                     name,
2024-02-27 10:05:36                     ret[mac],
2024-02-27 10:05:36                     mac,
2024-02-27 10:05:36                 )
2024-02-27 10:05:36 >               raise RuntimeError(msg)
2024-02-27 10:05:36 E               RuntimeError: duplicate mac found! both 'caliaadab05bca1' and 'cali7a099f8b737' have mac 'ee:ee:ee:ee:ee:ee'.
2024-02-27 10:05:36 
2024-02-27 10:05:36 cloudinit/net/__init__.py:987: RuntimeError

[xiaoge1001]

Why do all cali* interfaces have the MAC address ee:ee:ee:ee:ee:ee?

reference:https://docs.tigera.io/calico/latest/reference/faq#why-do-all-cali-interfaces-have-the-mac-address-eeeeeeeeeeee

[catmsred]

Thank you for reporting this bug! 23.4.1 has been superceded by 23.4.4 -- are you able to reproduce this issue in 23.4.4 as well?

[TheRealFalcon]

pytest tests/unittests/test_net.py

test_net.py contains 223 tests. Can you provide the exact test or tests that failed?

[xiaoge1001]

pytest tests/unittests/test_net.py

test_net.py contains 223 tests. Can you provide the exact test or tests that failed?

cloud-init-23.4.1:
https://gitee.com/src-openeuler/cloud-init/issues/I93ZJT?from=project-issue （See the attachment.）

[xiaoge1001]

I will use the latest version for the past two days to test it as well.

[blackboxsw]

@xiaoge1001 I expect #5012 may solve the build issues you are seeing. If you get a chance to test #5012 in your environment it will help give us a signal as to whether this resolves the issue you filed.