Bangladesh SMW-5 Repairs Trigger 80-Hour Disruption

Why It Matters

The outage underscores Bangladesh’s reliance on a limited submarine‑cable pool, exposing risks to digital commerce, remote work, and critical services. It also pressures policymakers to diversify infrastructure for greater resilience.

Key Takeaways

• SMW-5 repairs cause up to 80-hour internet slowdown in Bangladesh
• Backup traffic will shift to SEA-ME-WE-4 cable during outage
• Over 70% of national traffic relies on the two government cables
• No private cable approved yet, limiting redundancy options
• Outage highlights vulnerability of single-point submarine infrastructure

Pulse Analysis

Submarine cables are the backbone of global connectivity, and for Bangladesh, SEA‑ME‑WE‑5 and SEA‑ME‑WE‑4 together handle the majority of international bandwidth. The SMW‑5 line, landing at Kuakata, links the country to Singapore and onward to Europe and the Americas, while the older SEA‑ME‑WE‑4 route runs through Cox’s Bazar. When a critical shunt‑fault repair is scheduled, operators must reroute traffic, a process that can strain capacity and increase latency, especially during peak usage periods.

The 80‑hour disruption, though planned, will likely translate into slower page loads, buffering video streams, and intermittent outages for businesses that depend on cloud services, e‑commerce platforms, and real‑time communication tools. Enterprises with limited on‑premise redundancy may face productivity losses, while consumers could see higher churn if alternative providers cannot absorb the load. The incident highlights the operational challenge of maintaining service continuity when a nation’s internet traffic funnels through just two cables.

Regionally, the outage raises questions about Bangladesh’s long‑term connectivity strategy. A private‑cable consortium has sought approval but was rebuffed by the previous interim government, leaving the country vulnerable to single‑point failures. Diversifying the submarine‑cable portfolio would not only improve resilience but also foster competition, potentially lowering wholesale bandwidth costs. As South Asia’s digital economies expand, policymakers are under pressure to accelerate infrastructure approvals and explore multi‑carrier agreements that can safeguard against future disruptions.