Debate: Was last week's outage my fault or the vendor's?
We had a major VLAN issue last Tuesday that took down our finance department for almost 4 hours. I had just pushed a config change to a core switch, and suddenly half the network stopped talking to the other half. My gut says it was a bug in the firmware update we installed two days before, because the config was exactly the same as our test lab setup. But my boss thinks I forgot to save the running config before rebooting, which wiped some key settings. The vendor supports my side and is blaming their own code, but they won't put it in writing yet. I've been going over logs all weekend and I'm still not 100 percent sure what happened. Has anyone else had a similar finger pointing situation where both sides looked guilty, and how did you figure out the real cause?