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| CenturyLink is causing a decrease in global network traffic |
US ISP CenturyLink suffered a major technical failure Sunday due to a configuration error in one of its data centers, which caused the Internet to completely crash.
Due to the technical nature of the boycott (including firewalls and BGP paths), the error spread outside CenturyLink's network and also affected other ISPs, causing connectivity issues with many other companies.
CenturyLink's split affects many tech companies including Amazon, Twitter, Microsoft, EA, Blizzard, Steam, Discord, Reddit, Hulu, and OpenDNS.
American Network Infrastructure and Web Site Security Company (Cloudflare) have also been severely affected. He said the spread of the error outside CenturyLink led to a 3.5% decrease in global internet traffic, making it one of the largest internet outages in history. .
According to the CenturyLink case page, the problem started in a data center in Mississauga, a city near Michigan, Canada.
The main cause of the breakdown was false advertising related to FlowSpec, an extension of the BGP route because the technology allowed the company to use BGP routing to distribute the backbone of the firewall over its network, the US ISP said.
FlowSpec displays are widely used to manage security incidents (for example, BGP hijacking or DDoS attacks) because organizations can modify the entire network to respond and defend against attacks in seconds.
However, according to CenturyLink, FlowSpec released by the Mississauga data center incorrectly prevents the company from using BGP.
Cloudflare spotted the incident remotely, believing CenturyLink had announced a new batch of BGP paths and then mistakenly deleted all paths from the coordinated FlowSpec rules, and thus the entire network loop. Error.
Manages BGP Internet routing. This is a message that internet companies are transmitting to each other. The BGP route notifies each Internet Access Provider of all available IP (Internet Protocol) addresses in its network.
False FlowSpec ads have stopped some paths on CenturyLink, and some of these routes have also declared BGP routes invalid for other nearby internet services, causing other networks to crash.
CenturyLink solves this problem by taking non-repetitive steps to instruct all other ISPs to ignore all traffic on their networks. Rarely does a company make such decisions because it has completely severed ties with all customers.