Documentation is a vital part of the network industry. It allows us to quickly and correctly adapt new technologies, and spread best common practices. Unfortunately documentation is riddled with IP space that's actually globally routed (1.1.1.0/24). An unsuspecting network operator can copy/paste configuration, and inadvertently hijack the IPs, or send trash to the actual prefix operator...
The 400G market is growing with many more organisations looking to deploy 400G in the core & even lineside.
One thing to consider with 400G optics is that some of them use a ~75ghz grid which can create problems when used with a standard 100Hz based DWDM systems.
This lightning talk is aimed at highly the issue and providing options on how to overcome this issue by using passive DWDM systems