The network of each building, its construction and the number of residents vary."One building."Go build it. The back of the carrier will go crazy.——Each time you change the rate and check a malfunction, you have to go over dozens of devices remotely. So central control is not an option from the start, but rather a lifeline on whether this system can be scaled up.
The first level of central control is management level.
No matter how many of the access devices are under, there must be a single management backstage. All buildings should have their certification strategy, billing rules, account status from this place instead of being matched by one desk-by-office. We've seen the most painful school with an independent control device for each building, all of which is manually synchronized, and as a result, building three has changed rates, building seven has forgotten, students find different prices for a new network, and complaints go straight to the principal's letterbox.
The data should be focused on the real conditions of the school.
There are two forms of central control. One is pure cloudy, with all Authentication & Billing completed at the centre, with thin terminals in buildings; the other is peripheral calculations, where each building is processed locally and the center collects aggregate data only. The former manages the most economical tasks, but relies heavily on the central link, which falls off the entire dormitory area once the school core network shakes; the latter is disaster-prone and self-governing within the building, but with high transport complexity. The actual selection depends on the reliability of the school backbone network and cannot be blindly followed."The clouds."We generally recommend that core billing be placed at the centre, certified as a local cache, balanced management and stability.
Different buildings can have the same strategy, but allow for differentiation
The concentration is not a one-size-fits-all."Default strategy plus building coverage"The centre defines a set of benchmarks, with the exception of specific buildings. This preserves unified management without stifling special needs.
We need to be accurate."Which floor?"
The area of dozens of buildings, most feared."The students say the Internet is not working."The central control platform has to see every building, every access point, online status and flow curve on a top-up map. Which floor the decoupling, which equipment, which floor, bandwidth, and a sudden increase in it can be seen at first glance. Without this capability, the carrier is dependent on students to learn how to read blind guesses and is inefficient. This one is easily ignored during the bidding process, but it decides directly whether the information operator will be able to carry the entire dormitory.
Bulk capacity, just needed for a big scene.
The opening, graduation, and summer holidays involve large-scale changes in the status of accounts. A centralized control system must support a block-by-building, a block-by-synchronous operation rather than a single point. For example, one key for the completion season freezes all accounts and opens up a new quarter. If you have to manually guide the tables on an item-by-article basis, the system will collapse directly in real rhythm."Support Batch"。
We need to focus on the rights, but we need to keep them in order.
Capacity planning and horizontal expansion, with centralized control left behind
The dormitories are not static; new buildings, expansions, bandwidth upgrades change loads. Centralized control platforms need to support horizontal expansion, and adding a building should not mean a reversal. Core processing nodes must be shared with machines, and floor management should contain more equipment than Caden.
We need to have an audit of the operation, beyond the boundaries.
Central control takes power up, and someone has to see how it works. Whoever changes the rates, who freezes the number of accounts, who emits the data, leaves a mark on these operations. On one hand, it is difficult to trace errors, and also limits the rights themselves. The audit log and the previous reference hierarchy are two sides: they solve layers."Who can do it?"Audit settlement"What did you do?"The dormitory billing system is a cash and student account, no audit is like a vault, nothing happens. It's not clear if anything happens. This one deserves to be written in demand.
Central control makes it easier and creates a concentration of risks. If there is only one administrator account for the entire system, this person leaves or leaves the dormitory area, nobody can handle it. It's safer to do role-sharing: watch surveillance, rate-fixing, processing work orders, separate privileges. Both prevent mishandling and single point out of control."How do I divide the duties?"And if you think about it, the system will be stable.