Due to the complex structure and passage of the seabed, repair of fiber optic cables can take weeks. Illustration. Specifically, the APG fiber optic cable had a problem since May 11 near Hong Kong. The cause of the fault was determined to be a shun fault. The repair process of this cable route lasted 5 days, during which the entire service to and from Hong Kong, China of APG project member partners was interrupted. On the morning of June 11, a representative of an Internet service provider (ISP) confirmed that the error of the APG fiber optic cable had been fixed. For the AAE-1 route, the incident on May 25 was determined to be a broken cable. The incident partially disrupted the carrier’s service to Hong Kong. According to the announcement of the company in charge of the AAE-1 cable route to Vietnamese ISPs, it is expected that the repair time for this cable line will last from June 22 to July 13. The two cable lines mentioned above are the ones with large capacity. The APG route, with the investment of four Vietnamese carriers, VNPT, Viettel, FPT and CMC, has been in operation since December 2016. With a maximum bandwidth of 54 Tbps and a length of 10,400 km, the APG route passes through many Asian landing points such as China, Hong Kong, Taiwan, Japan, Malaysia, Singapore, Thailand and Vietnam. Meanwhile, the AAE-1 line has been in operation since July 2017, with a length of 25,000 km and a total capacity of 40Tb/s. This cable route has the role of improving quality towards Europe and the Middle East as well as providing additional capacity and redundancy towards the connection direction to Hong Kong and Singapore. According to representatives of ISPs, when an undersea cable problem occurs, the network operators must navigate through other fiber optic routes or other directions of the route that is having trouble. Specifically, Viettel has routed and supplemented traffic for TGN-IA, APG routes to Singapore and AAE-1 to France. Meanwhile, CMC Telecom increased capacity via cable direction across Southeast Asia (A-Grid), connecting Internet from Vietnam through Cambodia, Thailand, Malaysia and Singapore. VNPT navigates and loads other cable directions that are operating stably such as CSC, AAG, IA, SMW3.

Illustration. Internet source Specifically, on May 11, there was an incident on the S6 segment of the APG (Asia Pacific Gateway) undersea cable line. The system has mobilized ships and started repairing the above incident from June 6 and is expected to be completed tomorrow, June 11; However, during the repair, it disrupts all services to and from Hong Kong – China, so it affects network operators in Vietnam participating in APG project investment. On May 25, the AAE-1 (Asia Africa Europe – 1) cable route had a fiber break on the FP10 pair of the S1H.1 segment (about 2,072 miles from the Cape D’Aguilar landing station, Hong Kong – China. km towards Vung Tau-Vietnam). The incident on this route caused a small part of the service interruption of the domestic carrier in the route to Hong Kong – China. International partners are expected to troubleshoot the S1H.1 segment from June 22 to July 13, 2021. Incidents on two undersea fiber optic cables have a common effect on all network operators and internet service providers in Vietnam. To overcome, on the afternoon of June 10, a representative of Viettel Group said that when a problem occurred, Viettel immediately implemented a routing plan, optimized, and added capacity (including backup capacity) on the network. other undersea cable routes are TGN-IA (towards Hong Kong – China and Singapore) and APG (towards Singapore), AAE-1 (towards France) as well as preparing land cable resources for international connection. to ensure quality service to customers. In case customers have difficulty accessing, please contact Viettel via switchboard 18008119 to find out the exact cause and provide the fastest support. A representative of VNPT said that immediately after the above incident, VNPT carried out load balancing, redirected connections to other undersea cable routes as well as a number of land cables to ensure the quality of services provided to them. customer. “We navigate and load other cable directions that are operating stably such as CSC, AAG, IA, SMW3”, a VNPT representative said. According to CMC Telecom, this unit has also increased capacity through the cable direction across Southeast Asia (A-Grid), connecting the internet from Vietnam to Cambodia, Thailand, Malaysia and Singapore to ensure supply. provide stable service to customers during the incident as well as the process of repairing and overcoming…

Sharing with ICTnews this afternoon, June 10, a representative of Viettel confirmed, according to information from the operator of the undersea optical cable routes, on May 11 and May 25, two routes APG and AAE-1 have crashes in turn. Specifically, on May 11, a problem occurred on the S6 segment of the APG undersea cable line. The location of the cable problem is about 352 to 355 km from the TKO docking station in Hong Kong, China. The cause of the problem was determined to be a “shunt fault” but did not cause service disruption. The cable route management unit has mobilized the ship and started to carry out maintenance to fix the fault on the APG cable line from June 6 and is expected to be completed tomorrow, June 11. During the repair period, it will disrupt all services to and from Hong Kong, China of APG project member partners. The APG route is invested by four Vietnamese carriers, VNPT, Viettel, FPT and CMC. The incident occurred on May 25 on the S1H.1 segment of the AAE-1 cable line, which is expected to be fixed from June 22 to July 13 (Artwork: Internet) With the AAE-1 undersea cable, according to Internet service providers (ISPs) in Vietnam, the incident occurred on May 25 on the FP10 pair of the S1H.1 segment, far from the Cape D’Aguilar landing station. , HongKong, China about 2,072 km towards the port of Vung Tau, Vietnam. The cause of the problem was a fiber break, which partially disrupted the service to Hong Kong on the FP10 pair. The plan to overcome the problem that occurred on May 25 on the S1H.1 segment of the AAE-1 international undersea fiber optic cable has also been announced to ISPs in Vietnam, expected to start from June 22. and completed on 7/13. The fact that sea cable incidents occurred at the same time in the past time has affected the international connection capacity of telecommunications service providers in Vietnam. This is a common problem affecting all network operators and Internet service providers in Vietnam. However, according to a Viettel representative, the level of influence of this network operator is the lowest because before the sea cable incident, Viettel actively planned, routed, allocated and supplemented capacity, including capacity. redundancy on international connection cables to ensure the quality of service provided to customers. When an incident occurred, Viettel immediately implemented a routing plan, optimized and added capacity on other undersea cable routes including: TGN-IA towards Hong Kong and Singapore; APG heading to Singapore; AAE-1 goes to France as well as prepares land cable resources for international connections to ensure quality service for customers. “Viettel is continuing to work with the Management Board, operating the APG, AAE-1 undersea cable lines and the NEC contractor to have continuous updates on the plan to repair the above incidents. In case of difficulty accessing, customers contact Viettel via the switchboard 18008119 to find out the exact cause and support the fastest, “a Viettel representative said. Previously, talking to ICTnews, other carriers said that they had carried out load balancing, redirected connections to other undersea cable routes as well as some land cables to ensure the quality of service provided to customers. row. Specifically, CMC Telecom has increased capacity through the cable direction across Southeast Asia (A-Grid), connecting the Internet from Vietnam to Cambodia, Thailand, Malaysia and Singapore. VNPT has actively navigated and loaded other cable directions that are operating stably such as CSC, AAG, IA, SMW3… Besides, VNPT is also actively coordinating with relevant units and partners to thoroughly check and fix international Internet connection problems.