Dhiraagu-SLT Submarine Cable Network: latency up to 3× normal, 5 Jul 2026
What we measured
| Cable | Dhiraagu-SLT Submarine Cable Network |
| Segment | Colombo, LK → Male, MV |
| Detected | 2026-07-05 19:31 UTC |
| Resolved | 2026-07-06 12:01 UTC |
| Duration | 16h 30m |
| Observed latency | 147.6 ms |
| Baseline | 108.9 ms · 3× |
| Increase | +200% |
| Severity | warning |
Who is affected
Countries where Dhiraagu-SLT Submarine Cable Network comes ashore, how much of their submarine diversity this cable represents, and what our measurements into them show.
| Country | Dependence on this cable | Other submarine cables | What the measurements show |
|---|---|---|---|
| Maldives resilience index: 100 · resilient |
1 of 11 cables (9% of submarine diversity) | Dhiraagu Cable Network, Dhivaru, Domestic Submarine Cable of Maldives (DSCoM) +7 more | average 245 ms over the last day vs 127 ms over 30 days - slower |
| Sri Lanka resilience index: 76 · resilient |
1 of 9 cables (11% of submarine diversity) | Bay of Bengal Gateway (BBG), Bharat Lanka Cable System, FALCON +5 more | median 229 ms today vs 205 ms over 30 days (40 routes) - unchanged |
Dependence is structural (share of the country's submarine cables), not a traffic share: real traffic distribution across cables is not public.
Path analysis
Traffic changed route while latency was elevated. A reroute of this kind usually follows a fault somewhere on the original path.
Cross-probe verdict. Too few independent vantage points were watching this endpoint to reach a cross-probe verdict.
Timeline
- Alert 2026070502: warning - ratio 3x
- Alert #145 improving: 1/3 consecutive OK
- Alert #145 improving: 1/3 consecutive OK
- Alert #145 improving: 2/3 consecutive OK
- Alert #145 resolved: RTT 147.59ms (baseline 108.87ms), 3 consecutive OK
Detection method
Latency is sampled continuously from our probe network. An alert opens when round-trip time to a monitored endpoint holds above its rolling baseline, and closes automatically once it returns. Full method is described on the methodology page.