My network consists of 3 different networks (VLANs). All three VLANS serve a different purpose. When I inherited this network I sort of laughed at how big the subnets were for each VLAN:
VLAN 30 - 10.4.0.0/16
VLAN 40 - 10.5.0.0/16
VLAN 50 - 10.6.0.0/16
These are very large networks. I was always told that the rule of thumb is to never make a network segment larger that about 250 hosts or a Class C network, or broadcast traffic could start to degrade performance. VLAN 30 is about to reach 230 hosts. Most of these hosts are servers that host applications. Should I created another VLAN and start adding new servers to this network. I'm worried that VLAN 30 will get to congested if I add to many more servers.