Iran experiences BGP control plane disruption lasting over three hours
Iran experienced a disruption to its internet control plane on Saturday, July 12, affecting the visibility of network routes for over three hours. The event began at 21:20 UTC and concluded at 00:30 UTC on July 13, with the most significant impact occurring in the…
Iran experienced a disruption to its internet control plane on Saturday, July 12, affecting the visibility of network routes for over three hours. The event began at 21:20 UTC and concluded at 00:30 UTC on July 13, with the most significant impact occurring in the latter half of the disruption window.
Technical Details
The disruption was recorded in the Border Gateway Protocol (BGP) signal, which measures the stability of routing announcements for the country’s internet prefixes. The event registered a severity score of 212, with the primary impact period from 22:15 UTC onward accounting for a score of 169. The BGP median signal recorded a drop of 1% from its peak value during the observation window.
Other internet measurement signals, including active probing for IPv4 reachability and backscatter traffic analysis, showed minimal deviation from baseline levels. The cause has not been publicly attributed.
The disruption was resolved by 00:30 UTC on July 13.
