(andy314): IPv6 does Duplicate Address Detection even though

[todo]

connectedhomeip/scripts/tests/test_suites.sh

Lines 91 to 101 in 03f4d6a

	# TODO(andy314): IPv6 does Duplicate Address Detection even though
	# we know these addresses are isolated. For a while IPv6 addresses
	# will be in 'transitional' state and cannot be used.
	#
	# This sleep waits for the addresses to become 'global'. Ideally
	# we should loop/wait here instead.
	sleep 2
	}
	netns_cleanup() {
	ip netns del app || true

---

This issue was generated by todo based on a TODO comment in 03f4d6a when #11635 was merged. cc @andy31415.

[carol-apple]

This is a dupe of #11785