Scheduled maintenance : network core stack resiliency Sunday 11th April 2021 14:45:00

Estimated timeframe : 14:45-17:00

Actual timeframe : 15:05-16:30

Objective

Reinstate full resiliency of the network core stack, after a decreased resiliency caused by a stack member switch dropout in the iGent datacenter facility following yesterday's firmware upgrade.

Actions

investigate stack member dropout
remediate on-site (if possible)

Impact

During the intervention, full network availability will be maintained where possible. If required, a rolling reboot may inflict a short interruption (1-2 minutes) of specific services.

Mitigation

none

16:28 core stack has been reconfigured from 4 to 3 stack members ; as network bandwidth has been architecturally overcommitted, no detrimental network performance is expected. Vendor will be contacted for remediation.

Posted 3 years ago

16:22 stack fiber wiring from 4 to 3 members to (temporarily) restore resiliency.

Posted 3 years ago

16:17 boot loader diagnosis reveals issues with internal NAND storage ; vendor intervention required.

Posted 3 years ago