Improving The Resiliency of Your Singapore Connectivity: The Challenge

Building a resilient Layer 1 network where Singapore is a major POP is very difficult. Most subsea cables land in Singapore via designated sea lanes with four to five cables per lane. This increases the risk of a dragged anchor taking many cables. Although over the last ten years there have been few or none such incidents, a network planner is judged on future performance and proper risk management. Moreover, most subsea cables land at subsea cable landing stations (only 4 in total) serving many other cables. So dividing traffic among several cables is not good enough if resiliency is the goal.

Tuas CLS: Apricot, Asia Direct Cable, Bifrost, I-2SEA, I2I, IAX, Indigo West, INSICA, MIST, MVISTA, PEACE, SEA-H2X, SMW4, SMW5, SMW6, SJC, & UMO.

Tanna Merah: SEAX-1, BJC2, BJC3, & ASC.

Changi North: AAG, BSCS, CANDLE, C2C, Echo, JAKABARE, MIC-1, RISING 8, TGN-IA, TGN-INDICOM, & TIS.

Changi South: APG, ASE, C2C, MATRIX, & SJC2.

Cable landing diversity is extremely hard to achieve. Moreover, sea lane diversity is impossble. However, in the next installment, I will give some tips to mitigate the single point of failure risks that abound in Singapore. 

Map of the Fibre Optic Subsea Cables Landing in Singapore


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