Some things we like to do:
Out-of-band mgmt: Blue
We also label each end of a cable and group based on where they are coming from.
Redundant power supplies running off separate sources and each power cable is labeled based on which side of the rack it runs to.
In the end it looks very neat.
I agree different colored cables depending on the use is very efficient. The biggest trick to cabling is to stay on top of it, it's funny how often a temporary solution becomes permanent. Don't give up!
I understand that there can be "many hands in the pot", but I always try to do any actions in the racks i can or there is a group/team that is tasked with that effort per my capacity requests. There should be a strict limit on who and how many people are in the racks to limit accidents and incidents.
I generally use red of other type networks in lieu of green.
First thing about cable management...... it takes time and documentation.
Couple things I try to do whenever I take control of a network.
These are great. To add one thing to the extensive list CourtesyIT provided is red cables for uplink ports. The red is for touch it and die for the other IT professionals that work in our racks.
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