At 17:11 our networking monitoring advised to a failure on our network which was localised to a single rack within LON01.
Initial diagnostics started and it was assumed there was a power issue within Rack03 as all devices on Feed A where showing as “unreachable”
Further diagnostic showed this not to be the case but a line card within LON01-CORE having been reloaded by the primary supervisor due to a series of automated test failures.
UPDATE01 – 17:18
The module has come back online and all traffic has resumed. Engineers are currently working on why this occurred.