how can i create a network map easily?
Posted on 2011-10-27
I've been hired recently for a new job, rebuild the network of a big factory.
it seemed cool at the beginning, but when i saw the net status i wished i was dead!
The plant is enormus, 2km*2km almost. so they used optical phiber to cable the area.
the center of the star is situated in a old open room, so water and even birds can walk around there!
The problem is that on the same phisical net are running two, maybe three subnets, without any vlan.
subnet 172.24.57.0/24 is for offices, pcs printers and maybe servers, 192.168.1.0/24 is for erp pcs, storage management an who knows...
The bigger problem is that i have to manage replacement of the devices with, in their mind, 0 downtime because every hour of stop are 50000$ lost almost. it would be possible to reduce it having a full documentation but in this way it would take days.
Since following optical cables for miles underground is impossible, can you advise a good software that "automagically" map the network, especially switches, but possibly without need of snmp?