There is a 3 floor building with pre-installed Cat5 Lan Cable.
Our equipment is approximately:
30 computers (most of them with gigabit lan port)
10 network printers
2 servers with gigabit lan port (with shared folders and network applications)
1 Cisco Catalyst 3560G PoE 48 Port Switch
1 Cisco Call Manager
30 Cisco IP Phones powered over ethernet
1 Cisco Antispam
1 Cisco Firewall
2 Cisco Access points
I have heard that it is recommended (in order to keep the network traffic from computers lower than servers) connecting to the switch with Cat6 cables only Servers and Main Network Devices (such as Call Manager, Modem/Routers, NAS, Firewalls etc.)
On the other hand Computers and Misc Network devices should be connected with Cat5 Cables in order to avoid of running the Network Switch at its limits.
If so, I could keep the Cable Installation of the building as is and connect with Cat6 Cables only the Servers and Main Network devices which will be installed very close each other.
Q1) Do you agree with the above mentioned?
Q2) If not what type of cabling do you suggest to install(replace) for the building?
Kindly explain me why do you recommend one or the other solution.