Excuse me, what do you mean by the unavailability time of Southwest University campus network? The long-term unavailability of the campus network of Southwest University means that the campus network of Southwest University has exceeded the use time limit of this month and cannot be used this month. Southwest University Campus Network refers to the campus network launched in cooperation with network operators within the scope of Southwest University in order to facilitate students to surf the Internet. Then the network has no available time, which means the network can't be used because the campus network has a time limit of one month. If the usage limit is exceeded, it cannot be used, and the available time will be displayed. Therefore, the campus network of Southwest University is unavailable, which means that the campus network of Southwest University has exceeded the use time limit of this month and cannot be used this month.