Subnet Question

[mccullrr]

A little backgound info...

I have inherited a 4 year old network design. We have 6 dorms with either 1 or 2 Cisco 4507's (total of 10) that network back to a core 4507. The subnets are as follows...

wired -
Dorm1_A = 10.31.0.0/23
Dorm1_B = 10.32.0.0/23
Dorm2 = 10.33.0.0/23
Dorm3_A = 10.34.0.0/23
Dorm3_B = 10.35.0.0/23
Dorm4_A = 10.41.0.0/23
Dorm4_B = 10.42.0.0/23
Dorm5_A = 10.43.0.0/23
Dorm5_B = 10.44.0.0/23
Dorm5 = 10.45.0.0/23

Wired Mgmt
10.1.1.0/30
10.1.1.4/30
10.1.1.8/30
10.1.1.12/30
10.1.1.16/30
10.1.1.24/30
10.1.1.28/30
10.1.1.32/30
10.1.1.36/30
10.1.1.20/30

Dorm Wireless
10.31.2.0/23
10.33.2.0/23
10.34.2.0/23
10.41.2.0/23
10.42.2.0/23
10.44.2.0/23
10.45.2.0/23

Wireless Mgmt
10.1.31.0/23
10.1.33.0/23
10.1.34.0/23
10.1.41.0/23
10.1.42.0/23
10.1.44.0/23
10.1.45.0/23

So basically giving me roughly 510 hosts per subnet. My task now is that we are adding one more dorm to the network. I'm trying to plan for future growth and am wondering if 510 hosts will be enough. If I choose to use another subnet scheme different than /23, will it work?? Can it be done?? How would you set up your new dorm?

Thanks to everyone for their assistance. Hope I didn't confuse anyone.

Becky

 

[billyj1900]

Becky,
Just download a subnet calculator which will tell you how many subnets and networks you need and want. /22 will give you 1022 hosts which is a lot of hosts to try to manage.