Beginning Saturday afternoon on 16 November 2019, the government of Iran ordered the disconnection of much of the country’s internet connectivity as a response to widespread protests against the government’s decision to raise gas prices.
In the Border Gateway Protocol (BGP), prepending is a technique used to de-prioritize a route by artificially increasing the length of the AS_PATH attribute. Unfortunately, as we will report, prepending is frequently employed in an excessive manner such that it renders routes vulnerable to disruption or misdirection. So how many prefixes in the global routing table are excessively prepended? The number might surprise you!
During the second half of 2018, the causes of significant Internet disruptions observed through the Oracle Internet Intelligence Map could be clustered into a few overarching areas: government-directed, cable problems, power outages, distributed denial of service (DDoS) attacks, and general technical issues.
Closing out 2018, in December the Oracle Internet Intelligence team observed Internet disruptions in countries around the world due to power outages, government direction, technical faults, and possible issues relating to satellite connectivity.
In November, we saw fewer significant Internet disruptions in the Oracle Internet Intelligence Map as compared to prior months. As usual, there were hundreds of brief issues with limited impact and generally unknown causes, but the most notable issues last month were due to reported DDoS attacks, problems with terrestrial and submarine cables, and general network issues.
Over the course of a given month, hundreds of Internet-impacting “events” are visible within the Oracle Internet Intelligence Map. Many are extremely short-lived, lasting only minutes, while others last for hours or days; some have a minor impact on a single metric, while others significantly disrupt all three metrics. In addition, for some events, the root cause is publicly available/known, while for other events, digging into the underlying data helps us make an educated...