From 09:21 UTC to 09:43 UTC, the GSL network team performed routine maintenance on the scrubbing hardware in Frankfurt for the purpose of an OS upgrade + NIC swap. Normally, these procedures do not cause any form of traffic blackholing in other sites. Unfortunately for us, the way our statics are setup in Frankfurt, such procedures did cause a full blackhole in traffic for the duration of the maintenance.
We've stressed to the team the importance of heads up in cases such as these, and informed them on the necessity on timing it closer to off peak windows. No further maintenance is required in Frankfurt at this time.