I am about to plan a wireless network on a school with 800 students. My thought was to design this network in a combination of 802.11a and 802.11g due to issues regarding bandwidth, inteference and channel planning. Is the Cisco 802.11A/G AP's able to run these to technologies simulaneously and theoretical obtain a speed of 54Mbit/s x 2?
Any other good suggestion on planning wireless in schools`?
Are you planning to use The Lwapp or autonmous solution? In your environment, the lwapp solution (WLC + WCS) would be a good fit as it would provide for dynamic channel/power/noise management. Keep in mind that a uses OFDM modulation while b uses dsss/cck - g also does dsss/cck as well as OFDM; dsss/ck will provide better coverage than OFDM.
Also B & G use 11 channels, 3 of which are non-overlapping, while A has 23 available.
Your best bet is to focus on AP count & cell size rather than speed. This will allow for radio load balancing, failover, etc. Also, several of the Cisco APs have b/g/a that can run b/g/a simultaneously.
Also keep in mind that the 54Mbits is bitrate rather than speed and that the bitrate and speed over wireless are affected by distance, interference, obstructions, phase of the moon, what paris hilton is doing, etc....
We have 90 1020 APs covering 600,000 sq ft and 5 Vivato panels covering 280,000 sq ft (which will be replaced by Cisco APs this summer).
Our biggest obstacle was getting a wire to where we wanted the APs mounted.
Do a site survey, of course, but also make note of where people congregate AND, a big factor... where accessible power outlets are located. We see it all the time, people camped out by the power outlets to plug in their laptops. Most site surveys don't tell you the social engineering part, but in your environment and mine, it is a huge factor.
In your site survey, also try to determine if you can get data and/or power to where you want the AP mounted and if it is within ethernet spec. Bring an electrician along to get an idea of where & how much conduit you will need & labor involved.
Yes, the WLC can do that. You can define global templates for APs for many things such as power, load,RSSI,max connections, etc... global templates for controllers too.
You can also configure AP settings (once it registers with a controller) for the same as above, as well as wlan override, external antennae (AP model dependent), etc.
Not only that, but if you use the WCS, you can pull up a web interface that shows you the heatmaps with all sorts of good info.
Yes, you can disable bitrates, alter power, etc.
You can have a common ssid for b,g & a, or you can divide them up. For one event, I had a ssid called "internet" just on the b radio -g was disabled, and another called "internet5G" just on the a radios.
My goals are coverage and user load. Bandwidth is not important and we massage it down with policy-maps, nbar, policing,voodoo chants, etc...
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...