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NDS Sprint 28, NDS Sprint 29, NDS Sprint 30
Several times now, we've run into problems when OpenStack changes MTU and it's not detected by Labs Workbench – either CoreOS or Flannel.
We need to solve the problem in production (the MTU changes on beta were done manually) and define a strategy for handling this in the longer term. This will likely be detecting the problem (new Nagios rule) and document how to fix it when it happens.
See also NDS-938