Running this all night yielded no problems:
while true; do sudo ip link add aaa type veth peer name bbb sudo ip link set aaa up sudo ip link delete aaa sudo ip link delete bbb > /dev/null 2>&1 echo -n "." done
Running this all night yielded no problems:
while true; do
sudo ip link add aaa type veth peer name bbb
sudo ip link set aaa up
sudo ip link delete aaa
sudo ip link delete bbb > /dev/null 2>&1
echo -n "."
done