Network documentation that survives contact with reality
Perfect documentation is always out of date. Aim for the parts that stay true.
Writing
Documentation
Interface naming across vendors
A small thing that causes real mistakes when you work across platforms.
Reading a routing table you did not build
Somebody else built it, nobody documented it, and it is now yours. Here is the order to read it in.
Reading a network you did not build
The audit is the step everyone wants to skip and the one that decides whether the migration works. How to find the load-bearing accidents before they find you.