Should i vlan our network
Ok, we currently have a flat network. The IP range is from xxx.xxx.24.x to xxx.xxx.31.x. Everything is working fine but we seem to think that when all the machines (about 400) are used the network traffic is too high even though the speeds of the network seems ok.
We currently have 2x 7mb load balanced lines into school and even when the majority of the machines are on but not in use we seem to see the internet connection lose about 4mb and looking at the graphs there is hardly any traffic been used on the net. After plenty of speed tests we have seen the ping is about 58ms (this gives about 14mb) when the machines are not in use but turned on. When a few of the machines are in use (im talking about 30), we have seen the ping rise to about 156ms and like i said, the machines aren't using the internet connection but when the lessons are in full swing the ping can rise to about 200ms again, only about 4mb is going out to the net but during a speed test we only get about 2mb.
Would VLANing the network sort this out or is the problem related somewhere else on the network?
Also, when is the best time to create VLANs. Obviously someone with about 30 machines isn't going to vlan a network
At the moment, we dont give out our default gateway on our dhcp server, so if anyone does plug something into the network, yes they get an IP address but they cannot get out to the internet so they either have to add the machine to the network or use proxy authentication which i am happy about but after a lot of playing with VLANs i have found that our current setup will not work in a VLAN environment as you have to provide the clients with the gateway address to talk to the rest of the network and hence if someone plugs something in to the network they can get past the proxy. Is there a way round this so either they have to authenticate against the proxy or add the machine to the domain?