According to Vietnamnet, the AAG submarine cable was cut at 8:04 am on January 5, at a point about 117km from the landing station in Vung Tau. It seems Vietnam ISPs have improved their network diversity and restoration of internet traffic.
Vietnam internet was seriously disrupted by the frequent AAG cable cuts recently:
On December 20, 2013, the AAG broke at about 278km away from Vung Tau. It was repaired on January 4, 2014.
On July 15, 2014, the cable broke at 18km off Vung Tau, and was repaired on July 27.
On September 15, 2014, a break occurred somewhere near the Vung Tau coast at 11:41 pm This has slowed down Internet services offered by Viettel and VNPT, FPT and STP
The frequent cuts of AAG cable in the past years, especially in its Vietnam branch, incurred blames on its poor design.
So far, it seems Vietnam carriers have taken measures to mitigate the internet disruption due to AAG cable cut.
It is said Vietnam carriers have acquired more than 100G capacity over the Vietnam-China land cable routes, via reciprocal deals in 2014.
As a result, FPT Telecom has used land cables to forward traffic from the broken cable segment in order to minimize the impact of the incident. Viettel has adjusted interconnection capacity through the pan-Asian fiber-optic cable and the land cable to China Telecom and China Unicom. Besides, from January 10, Viettel included an additional 80Gbps for the route to Hong Kong and Singapore.
With active measures, Vietnam internet has substantially restored from the AAG cable cut.