Good plan! I think this is a relatively common practice within some corners of the telecom world.
At university (Western WA in B'ham), I worked for our campus resnet, which had extensive involvement with other networking groups on campus. They ran layers 3 and below on the resnets, we took DNS+DHCP, plus egress, and everything through to layers 8 and 9.
The core network gear was co-located in a few musty basements along with the telephone switches. DC and backup power was available, but severely limited under certain failure scenarios.
All of the racked networking gear in the primary space was labeled with red and green dots. Green was first to go in any load-shedding scenario. Think: redundant LAN switches, switches carrying local ports, network monitoring servers, other +1 redundant components, etc.
I'm not sure if the scheme was ever required in real life, but do know it was based on hard-earned experiences like the author here.
Used to run data centers for ISPs and such around NoVA.
This was built into the building plan by room, with most rooms going down first and Meet-Me-Rooms + the rooms immediately adjacent where the big iron routers were, being the last to fail. It's been a while but IIRC there weren't any specific by-rack or by system protocols.
At university (Western WA in B'ham), I worked for our campus resnet, which had extensive involvement with other networking groups on campus. They ran layers 3 and below on the resnets, we took DNS+DHCP, plus egress, and everything through to layers 8 and 9.
The core network gear was co-located in a few musty basements along with the telephone switches. DC and backup power was available, but severely limited under certain failure scenarios.
All of the racked networking gear in the primary space was labeled with red and green dots. Green was first to go in any load-shedding scenario. Think: redundant LAN switches, switches carrying local ports, network monitoring servers, other +1 redundant components, etc.
I'm not sure if the scheme was ever required in real life, but do know it was based on hard-earned experiences like the author here.