Kendt-
 
We have a "strongly encouraged" (we are a public school district) BYOD program 
in  grades 6-12 using 2 x C4110's running 8.11.11.0003, 3610 APs, and NAC.
 
To get the AP Multi-edit settings to stick you have to always set Admin Mode, 
Radio Mode, and Antenna Selection.  I think there was some talk about changing 
this but I still have to set these three settings for my settings to stick.  I 
am still on 8.11.11.003.
 
Do not leave ATPC Enabled and Auto Channel in Active Mode.  You should set 
these once, let the APs figure everything out for an hour, then disable ATPC 
and set Dynamic Channel to Monitor.  You do not want your APs switching 
channels and changing power settings all day long.  This will drive clients 
crazy.  I set my minimum transfer rate to 24Mbps.  I have an AP in every 
"teaching space" and the clients should all connect at that rate and not decide 
to jump on some distant AP or not roam when a kid switches class.
 
Also, I only have Legacy, WMM, and 802.11e enabled in WLAN Services > VNS Name. 
 I also have Flexible Client Access Enabled and set to Mostly Airtime.
 
Radio 1:
Admin Mode: On
Radio Mode: a/n
Channel Width: 40MHZ
Guard Interval: Short
ATPC: Disabled
Max Tx Power: 24 dbm
Min Tx Power: 10 dbm
Auto Tx Power Ctrl Adj: 0 dbm
Channel Plan: All Non-DFS-Channels
Ant Selection: L/M/R
Advanced:
DTIM Period: 2
Beacon Period: 100
RTS/CTS Threshold: 2346
Frag. Threshold: 2346
Maximum Distance: 100
Dynamic Channel Selection: Monitor Mode
DCS Noise Threshold: -80
DCS Channel Occupancy Threshold: 100
DCS Update Period: 5
Min Basic Rate: 24Mbps
Max % of non-unicast traffic: n/a
Optimized for power save: n/a
Adaptable Rate: n/a
Multicast to Unicast delivery: n/a
Protection Mode: None
Protection Type: CTS only
40Mhz Channel Busy Threshold: 50
Aggregate MSDUs: Enabled
Aggregate MPDUs: Enabled
Aggregate MPDU Max Length: 65535
Agg. MPDU Max # of Sub-frames: 64
ADDBA Support: Enabled
 

Radio 2:
Admin Mode: On
Radio Mode: g/n
Channel Width: 20MHz
Guard Interval: Long
ATPC: Disabled
Max Tx Power: 24 dbm
Min Tx Power: 10 dbm
Auto Tx Power Ctrl Adj: 0 dbm
Channel Plan: 3-Channel Plan
Ant Selection: L/M/R
Advanced:
DTIM Period: 5
Beacon Period: 100
RTS/CTS Threshold: 2346
Frag. Threshold: 2346
Maximum Distance: 100
Dynamic Channel Selection: Monitor Mode
DCS Noise Threshold: -80
DCS Channel Occupancy Threshold: 100
DCS Update Period: 5
Min Basic Rate: 24 Mbps
Max % of non-unicast traffic: n/a
Optimized for power save: n/a
Adaptable Rate: n/a
Multicast to Unicast delivery: n/a
11b:
Preamble: n/a
11g:
Protection Mode: None
Protection Rate: n/a
Protection Type: CTS only
11n:
Protection Mode: None
Protection Type: CTS only
40Mhz Channel Busy Threshold: n/a
Aggregate MSDUs: Enabled
Aggregate MPDUs: Enabled
Aggregate MPDU Max Length: 65535
Agg. MPDU Max # of Sub-frames: 64
ADDBA Support: Enabled
 
I hope this helps,
 



Jeff Crawford
Manager of Networking and Security
East Grand Rapids Public Schools
2915 Hall St. SE
Grand Rapids, MI 49506-3111
616-235-3535
[email protected]>>> 

I have an open GTAC case and am waiting for the standard Enterasys 
recommendations, but I'm curious what others have seen in the real world.  We 
have had reports of client connection issues at one school with a heavy Mac 
deployment in a group of adjacent classrooms.
Controller - C5110-2 firmware 8.31.03.0011
APs - 3610 - 1 per classroom
Clients - MacAir OS X 10.8.4 (google search show other folks having WiFi issues 
if there is heavy channel interference), 33 per classroom.
SSIDs - 2 deployed, one hidden, both using NAC/RADIUS for authentication
Topology is Bridge@AP for these authenticated clients

I've tried to push the config recommended from the help pages, but for some 
reason bulk AP radio configs are not sticking (I changed several of the ones 
listed below but looking at the current config they are not active).  I did 
enable DCS in active mode and will be onsite to monitor today - current radio 
configs are:

Radio 1:
Admin Mode: On
Radio Mode: a/n
Channel Width: Auto
Guard Interval: Short
ATPC: Enabled
Max Tx Power: 24 dbm
Min Tx Power: 8 dbm
Auto Tx Power Ctrl Adj: 0 dbm
Channel Plan: All Non-DFS-Channels
Ant Selection: L/M/R
Advanced:
DTIM Period: 5
Beacon Period: 100
RTS/CTS Threshold: 2346
Frag. Threshold: 2346
Maximum Distance: 100
Dynamic Channel Selection: Active Mode
DCS Noise Threshold: -80
DCS Channel Occupancy Threshold: 100
DCS Update Period: 5
Min Basic Rate: 6Mbps
Max % of non-unicast traffic: 100
Optimized for power save: unchecked
Adaptable Rate: unchecked
Multicast to Unicast delivery: Disabled
Protection Mode: Always
Protection Type: CTS only
40Mhz Channel Busy Threshold: 50
Aggregate MSDUs: Disabled
Aggregate MPDUs: Disabled
Aggregate MPDU Max Length: 65535
Agg. MPDU Max # of Sub-frames: 64
ADDBA Support: Enabled


Radio 2:
Admin Mode: On
Radio Mode: b/g/n
Channel Width: Auto
Guard Interval: Long
ATPC: Enabled
Max Tx Power: 24 dbm
Min Tx Power: 8 dbm
Auto Tx Power Ctrl Adj: 0 dbm
Channel Plan: 3-Channel Plan
Ant Selection: L/M/R
Advanced:
DTIM Period: 5
Beacon Period: 100
RTS/CTS Threshold: 2346
Frag. Threshold: 2346
Maximum Distance: 100
Dynamic Channel Selection: Active Mode
DCS Noise Threshold: -80
DCS Channel Occupancy Threshold: 100
DCS Update Period: 5
Min Basic Rate: 11 Mbps
Max % of non-unicast traffic: 100
Optimized for power save: unchecked
Adaptable Rate: unchecked
Multicast to Unicast delivery: Disabled
11b:
Preamble: Long
11g:
Protection Mode: Auto
Protection Rate: 11 Mbps
Protection Type: CTS only
11n:
Protection Mode: Always
Protection Type: CTS only
40Mhz Channel Busy Threshold: 50
Aggregate MSDUs: Disabled
Aggregate MPDUs: Disabled
Aggregate MPDU Max Length: 65535
Agg. MPDU Max # of Sub-frames: 64
ADDBA Support: Disabled

I could go back and set them based on the 'High Throughput' settings list from 
the controller online help, but I don't want ot just randomly change settings 
without further logging or the recommendations from GTAC.

Thanks for any info!


Kendt Eklund
Executive Supervisor, Data Infrastructure
Moore County Schools - Technology
180 Pinckney Rd. - Carthage, NC 28327
910-947-6672 Fax: 910-947-1808
Email: [email protected]






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