Summary: On August 30, 2020 10:04 GMT, CenturyLink identified an issue
to be affecting users across multiple markets. The IP Network Operations
Center (NOC) was engaged, and initial research identified that an
offending flowspec announcement prevented Border Gateway Protocol (BGP)
from establishing across multiple elements throughout the CenturyLink
Network. The IP NOC deployed a global configuration change to block the
offending flowspec announcement, which allowed BGP to begin to correctly
establish. As the change propagated through the network, the IP NOC
observed all associated service affecting alarms clearing and services
returning to a stable state.
Source https://puck.nether.net/pipermail/outages/2020-August/013229...