"b" is the "slow" cousin of 2.4 Ghz. It also is the oldest used wireless protocol. the Cycles B uses to transmit are basically just longer. So it is hogging airtime, and thus slowing down other clients, that might be able to go faster. If you don´t have older "B" devices, you could try to disable the rates up to 12mbit´s and you might be surprised!
you could try to disable the rates up to 12mbit´s and you might be surprised!
You will be "surprised" all right if you disable 12 Mbps and you run wireless Voice. When you disable 12 Mbps, your handsets will be able to associate to the network just fine but you won't be able to make any incoming and outgoing calls as CAC protocol uses 12 Mbps by default.
"b" is the "slow" cousin of 2.4 Ghz
802.11b and 802.11g uses the same 2.4 Ghz spectrum. While 802.11g is faster, 802.11b is the slowest.
The main reason is modulation type. DSSS is used for 802.11b while G/N uses OFDM. There is a lot of variables as to how much a B client affects a cell, but it most certainly takes the other 2.4 GHz in the cell and reduces their performance (compared to a cell containing only OFDM using clients).
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...