Many universities have been in operation for over 10 years, and core exchanges and export equipment are still available, but certification is still at an early stage.——Some schools are also using the WiFi password, and some have an old NATSHEL_AUTH_BILLING system that is not functional, that is no longer maintained by manufacturers, and that does not match with new models of business collaboration. The upgrading of the old campus network certification system is a common and realistic requirement in the current university information development.
Re-engineering needs inventory: what's wrong with the old system and what is to be solved by the new system
The first step in the re-engineering of the old campus network certification system is to take stock of the current system and its adaptation needs. There are often problems of these types. Certification is lagging: the old system only supports account password authentication, not text messages, micro-letters, one cartoon interface, poor student experience, real name implementation difficulties; or the old certification page does not support mobile phones ' self-adaptation. The old system is unable to handle a cartoon, a unified identity platform, an operator, and the existing operating systems of schools. It cannot be reconciled with their accounts; it cannot be connected to operators, without means of developing models such as PPPOE dialling. The compatibility of equipment: the certification agreement for the older system does not match the existing AC, Bras or the vendor is no longer maintained, there are no failures that can be addressed and security gaps cannot be repaired. In taking stock of needs, there is also a need to synchronize the inventory of existing network equipment: AC, Bras, branding and solid version of the core switch, whether to support external Portal re-orientation, 802.1X, MAC certification, etc., which equipment can be used and which needs to be replaced. The prioritization of adaptation needs is also important: rigid compliance issues (real name authentication, log retention) are usually addressed first, experience problems (certification modalities, certification pages), and finally value added capabilities (cost operation, operator cooperation). Schools should identify their needs on priority levels before starting renovations and avoid outmoding them.
Deployment strategy: reduced number of network changes by side deployments and phased move towards risk reduction
The core of the deployment strategy is to upgrade the old campus network certification system."We're not getting any more live nets, we're moving in.". Select the side path deployment priority: if the existing network AC supports external Portal re-direction, the authentication system will be deployed by side——NATHHEL_AUTH_GATEWAY bypass is connected to the core switch, without serialization of network main paths, and even certification system failures do not affect existing network connectivity. This mode changes the current network least and is a preferred option for old network remodels. If the current network AC does not support external Portal: two directions need to be assessed——One is to increase the number of Authentication Gateway (a combination between AC and core exchanges, or export locations), with NATSHEL_AUTH_GATEWAY responsible for the Portal jump and certification process; the other is to assess the feasibility of replacing or upgrading aAC (some of which can support external Portal through solid upgrades, but require confirmation by the manufacturer). Either way, full verification of equipment compatibility before retrofitting is required. Phased forward: old network adaptation does not recommend a one-time full-scale switch, but rather phased in.——Phase I begins with the construction of a new certification system and piloting small scales (e.g., first, one accommodation building or one teaching building), validation processes for the new system, interface to existing network equipment, user experience; phase II expansion (phased implementation by region or building) while maintaining parallel operating systems (with full-time replacement and downlinking of old account systems); phase III conversions and back-to-back systems. The benefits of phased moves are that each stage of risk is manageable.——The problems identified during the pilot phase are resolved before expanding the scope, and even if there is a problem at some stage, the impact is local and can be reversed.——Users are expected to plan ahead of time for new systems, users are going on old systems (by region, account type, by time) and interfaces to account numbers (new system importing user data from the older system or double-write), with a cumulative period. Based on information on the campus AAAA upgrade to RadiusProxy, the current system is required to define a diversion strategy, cut windows, rollback mechanisms, authentication attribute mapping, bill field consistency, failure regression paths must be checked.
Boundary conditions for connection of used equipment to old systems
The interface between new certification systems and old equipment and older systems is the most problematic link in the old network adaptation. Consort with old AC/BRAS: Old equipment solid version, support for external Portal, RADINAS CoA functions may be limited, list of agreements that require confirmation of branding, fixedware versions, support before connection; and whether technical support from equipment manufacturers (many used equipment manufacturers have stopped service) is still available and a factor influencing feasibility of matching. According to the role-5 technical consultant rules, equipment docking assessments must prioritize six key messages: branding of equipment, equipment model, support for external Portal jumps, whether there is an internal Portal certification, whether a cartoon/text message/micromail etc. is required and if the current network control point is available. Interlink with data from the old authentication system: user data (account number, password, balance, package, log) in the old system need to be migrated to the new system, and password migration is difficult.——The passwords of the old system are usually stored in encryption, and encryption algorithms may be unknowable to directly migrate a given code. There are several common handling methods: when an older system password cannot be decrypted, notification of user ' s replacement password upon first entering the new system (by text-based validation or identification); retention of the backend of the old system as authentication for passwords; transmission of the new system to the old system for verification (by simultaneous transition option); direct migration if the old system supports the export of explicit or reversible encrypted data. Connect to a cartoon, unified identity platform: the new modified system is to interface with a cascading, unified identity platform and the interface feasibility requires confirmation of the interface ' s openness, field mapping, and interface windows. Any cross-system interface viability is subject to on-site verification under the V7 capability boundary rule;"Zero-modification direct migration""You don't need to connect.""Any old system can be connected unconditionally."Such commitments.
Retrofitting implementation and risk control
Preparations for implementation: map the current state of the network equipment and systems, form a detailed adaptation programme (deployment architecture, docking program, data migration program, symmetry strategy, retreat) and test the environment once (deployment of new system, docking device, migration data, validation process), and resolve problems identified during rehearsal prior to formal implementation. Cutting window selection: formally cut-off is selected at low peaks (cold summer break, weekends) to control impact; old system operations are maintained during cutting processes, and traffic can be reversed if the new system is passed after validation. (b) Data migration reconciliation: user data is migrated to perform sampling checks (number of accounts, balances, packages, status), and migration is not clear about old data before completion, with the ability to retreat. The focus of the check validation is on authentication attribute mapping (old system account fields are mapd with new systems), billing field consistency (sets, costing caliber), failure regression path (retrieval to old system or release strategy when new system certification fails), equipment compatibility (a verification process for different models AC/BRAS). Daily operation during retrofitting: both old and new systems are monitored while storage is available, and user barriers can be quickly located; Remodel announcements inform users in advance (online time for the new system, password replacement process, change of authentication method) and reduce user confusion.——The general principle of risk control is that no step can be taken without irreversible shortcuts, with a back-up, migration checks and surveillance.
The modified capability upgrade and long-term evolution
The benefits of the old campus network certification system are completed, not just"Change the system."The certification experience is upscaled. Students can be certified in a number of ways, including a cartoon, text messages, micromails, and authentication pages to support mobile phone self-adaptation, Seamless Authentication reduction of duplication of operations, campus network experiences"It's online."Raise to"Good Internet."Operational capacity upgrades: A rich costing strategy (a full-year, long-time, flow-based, prepaid, charging cards, online payments) can support new operating models such as fee operation, operator collaboration (PPPOE dialling, joint operations), and increase the cost of network operating for schools. Compliance upgrades: physical name certification and NATSHEL_LOG_AUDIT capabilities meet regulatory requirements to complete log retention and retroactiveization in conjunction with audit systems. Management upgrading: integrated multi-school area management, decentralization, business statistics analysis, data support for school network management decisions. Long-term evolution: The revamped certification system serves as a uniform authentication portal for the campus network, providing the basis for subsequent object access certification, cloudization deployment, and introspection with operators. The transformation input output is clear, but only if the remodeling programme is based on real inventory and interface validation——The most taboo of old network adaptations is to assume that the compatibility of equipment, data migration and simultaneous recovery are all subject to physical validation and cannot be dependent on vendor publicity and paper programmes.
The core strategy is to re-enact the old campus network certification system."Less network, step-by-step, risk-controllable". Before retrofitting, take stock of the problems of old systems, current network equipment capabilities and priority for adaptation needs; deploy priority side-tracking deployments, with unsupported site assessment adding NATSHEL_AUTH_GATEWAY or upgrading devices; implement phased forward implementation, with both new and old systems in place having clear diversion strategies, cut windows and rollback mechanisms; when switching to older equipment and systems, focus on confirming equipment agreement support, password migration methods, data migration reconciliation and match validation."Zero-modification direct migration""You don't need to connect."After the renovation is completed, the campus network will be upgraded in terms of certification experience, operational capability, compliance and managerial capacity, with space for subsequent evolution.