Havhingsten/CeltixConnect-2 (CC-2) cable: latency up to 2.1× normal, 29 May 2026
What we measured
| Cable | Havhingsten/CeltixConnect-2 (CC-2) |
| Segment | Blackpool, GB → LoughShinny, IE |
| Detected | 2026-05-29 02:32 UTC |
| Resolved | 2026-05-29 04:01 UTC |
| Duration | 1h 29m |
| Observed latency | 76.7 ms |
| Baseline | 40.3 ms · 2.13× |
| Increase | +113% |
| Severity | warning |
Who is affected
Countries where Havhingsten/CeltixConnect-2 (CC-2) 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 |
|---|---|---|---|
| Ireland resilience index: 100 · resilient |
1 of 16 cables (6% of submarine diversity) | AEC-1, Beaufort, CeltixConnect-1 (CC-1) +12 more | median 73 ms today vs 62 ms over 30 days (180 routes) - slower |
| Isle of Man resilience index: 59 · moderate |
1 of 6 cables (17% of submarine diversity) | BT-MT-1, E-LLAN, Lanis-1 +2 more | average 76 ms over the last day vs 42 ms over 30 days - slower |
| United Kingdom resilience index: 100 · resilient |
1 of 68 cables (1% of submarine diversity) | 2Africa, Amitie, Apollo +64 more | median 103 ms today vs 74 ms over 30 days (1011 routes) - slower |
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 kept the same route. Latency rose without a visible path change, which points at congestion or a fault on the existing route rather than a reroute.
Cross-probe verdict. Other measurements did not confirm the event. We treat this as a probable false positive and label it as such.
Timeline
- Alert 2026052901: warning - ratio 2.13x
- Alert #129 improving: 1/3 consecutive OK
- Alert #129 resolved: RTT 76.67ms (baseline 40.32ms), 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.