At 2 a.m., Director Li (pseudonym), the IT operation and maintenance manager of a digital technology company under a central enterprise, was awakened by a hurried phone call. "The synchronization of production data between the headquarters data center and the South China region has been interrupted again, and the automated production line is about to shut down!" The anxious voice of the on-duty engineer came from the other end of the line. This was the third business crisis caused by network problems this month. Staring at the flashing red alerts on the monitoring screen, Director Li realized that the traditional MPLS dedicated line architecture could no longer support the group's rapid digital transformation.
This central enterprise giant, ranked among the Fortune Global 500, is advancing a "single cloud" strategy to uniformly manage more than 30 business units (BUs). However, when the OA system was migrated to the cloud, problems began to emerge one after another:
"It's like trying to pull a high-speed train with a horse-drawn carriage—our network architecture is slowing down the entire group's digital process," Director Li said bluntly at the review meeting.
After the technical team from Optical Network stationed on-site, they completed a full-network "physical examination" in three weeks and prescribed targeted solutions:
Deploy "active-standby controllers" (dual-active brains) in data centers in Beijing, Shanghai, and Guangzhou. 34 key sites adopt MPLS + Internet dual-link supply. Critical businesses (such as production line data) automatically use the MPLS "VIP channel," while traffic like employee training videos is intelligently switched to the Internet.
Adopt EVPN + VXLAN technology to build exclusive communication cabins for five major business units. Financial data and medical information achieve physical isolation, completely eliminating the risk of cross-business data leakage. National secret SM-series algorithms encrypt Internet links throughout the process, and VRF logical isolation ensures controllable traffic, fully complying with the Level 3 requirements of Cybersecurity Classified Protection 2.0.
After deploying the iMaster NCE controller, the O&M team found that when a link fluctuated at a site in Shanghai, the system had automatically switched routes and generated a diagnostic report. During one line interruption, the backup 5G link took over within 200 milliseconds, with zero perception on the production line.
Three months after the project implementation, network problems have been significantly improved: the stutter rate of video conferences has dropped by 92%, and the data synchronization speed of overseas factories has increased by 8 times. In addition, the Internet bandwidth utilization rate has surged from 40% to 64%, and annual dedicated line costs are expected to be reduced by over 10 million yuan. The IPv6 transformation also met the standards half a year ahead of schedule, becoming a benchmark case for SASAC.
"Looking back at that early morning failure now, it turned out to be an opportunity for transformation," Director Li showed a set of data at the project acceptance meeting: the commissioning efficiency of the group's intelligent manufacturing base has increased by 17%, which is a chemical reaction driven by a highly reliable and intelligent network.
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