e use DC99 to test new things. Usually it is not offered to the public.DC99 is similar to DC9, with the following differences: - Outbound is CN2 GIA only for everything (no CMIN2/CU separate routes) - Lower priority, no guarantees.
翻译：回程CN2 GIA，没有CMIN2和9929
链接：https://bwh88.net/aff.php?aff=54229&pid=151