Microsoft’s Azure cloud briefly showed the limits of virtual resilience when several undersea fiber-optic cables in the Red Sea were cut on 6 September 2025, forcing traffic onto longer detours, producing higher-than-normal latency for cross‑region traffic, and triggering urgent...
Multiple undersea fibre-optic cables in the Red Sea were cut on 6 September 2025, triggering measurable slowdowns and intermittent connectivity across South Asia and the Middle East and forcing major cloud and carrier operators — most visibly Microsoft Azure — to reroute traffic, warn customers...
Internet traffic between Asia, the Middle East and parts of Europe slowed sharply after multiple undersea fibre‑optic cables in the Red Sea were severed on 6 September 2025, forcing cloud operators — most visibly Microsoft Azure — and regional carriers to reroute traffic, warn customers of...
A concentrated cluster of undersea cable failures in the Red Sea has throttled internet performance across South Asia and the Gulf, forcing cloud providers and carriers to reroute traffic and leaving businesses and consumers to contend with higher latency, intermittent packet loss, and slower...
asia europe
azure
bab el mandeb
bgp
cdn
chokepoints
cloud providers
cloud resilience
edge computing
failover
gulf
imewe
internet backbone
latency
microsoft
middle east
multi-cloud
multi-region
network outages
network resilience
outage
red sea
red sea cable cuts
redundancy
repair ships
rtt
sea me we 4
smw4
south asia
submarine cables
subsea internet
suez
traffic engineering
traffic routing
underseacables
Microsoft warned customers that portions of Azure experienced higher‑than‑normal latency after multiple undersea fiber‑optic cables in the Red Sea were reported cut on September 6, 2025 — an event that forced international traffic onto longer, congested detours, produced localized slowdowns...
A sudden cluster of undersea fiber cuts in the Red Sea has forced Microsoft Azure and other cloud and carrier operators to reroute traffic, producing measurable latency and slower internet performance across parts of South Asia, the Gulf and beyond—an event that exposes how a handful of damaged...
Microsoft has warned customers that parts of Azure may show higher‑than‑normal latency after multiple undersea fiber‑optic cables in the Red Sea were reported cut on 6 September 2025, forcing traffic onto longer detours while carriers and cloud operators reroute and rebalance capacity...
Microsoft issued an urgent alert on Saturday after multiple undersea fibre-optic cables in the Red Sea were discovered cut, triggering increased latency for Azure customers and underscoring how fragile the physical backbone of the global internet remains.
Overview
The disruption — first detected...
Microsoft’s Azure cloud experienced measurable performance degradation after multiple undersea fiber‑optic cables in the Red Sea were cut, forcing traffic to detour around the damaged corridor and producing higher‑than‑normal latency for flows that traverse the Middle East between Asia and...
Microsoft Azure customers worldwide experienced elevated latency and intermittent slowdowns after multiple undersea fiber‑optic cables in the Red Sea were damaged, forcing traffic onto longer detours while Microsoft rerouted and rebalanced network flows and coordinated with carriers and cable...
Microsoft says most Azure services continued operating, but customers experienced higher‑than‑normal latency after multiple international submarine fiber‑optic cables in the Red Sea were severed, forcing traffic onto longer alternative routes while carriers and cloud engineers rerouted...
Microsoft’s cloud customers were jolted on September 6 when Microsoft confirmed that multiple international subsea fiber-optic cables in the Red Sea had been cut, producing measurable latency and service degradation for Azure traffic that transits the Middle East corridor and forcing engineers...
Microsoft Azure users experienced elevated latency and disrupted connections after multiple undersea fibre-optic cables in the Red Sea were cut on September 6, 2025, forcing cloud traffic to be rerouted through longer, more congested paths and exposing fragilities in the global internet backbone...
Microsoft's cloud networking teams are racing to contain higher-than-normal latency on Azure after multiple undersea fiber-optic cables in the Red Sea were damaged, forcing traffic through longer, less direct routes and exposing a fragile chokepoint in the global internet backbone.
Background...
Microsoft warned Azure customers on September 6, 2025 that parts of its global cloud network are experiencing higher-than-normal latency and intermittent service degradation after multiple undersea fiber-optic cables in the Red Sea were cut, forcing traffic onto longer detours while carriers and...
azure
bgp routing
cloud outage
cloud resilience
control plane
cross region
data plane
expressroute
incident response
latency
microsoft
multi cloud
network latency
private peering
red sea
rtt
subsea cablesunderseacables
Microsoft has warned that users of its Azure cloud may see higher-than-normal latency and intermittent disruptions after multiple undersea fiber-optic cables in the Red Sea were cut, forcing traffic onto longer alternate routes while repair work and global rerouting continue. (reuters.com)...
I was mooching around the net, as one does and came across this map which i found fascinating. It shows all the undersea communication cables. I didn't realise there are so many!
See the full map here:
Submarine Cable Map