Solved

Wireless LAN Management Traffic

Posted on 2008-06-11
8
335 Views
Last Modified: 2013-11-12
Hi all
My WLAN shows about 90% management traffic in the form of beacons. I am using AirMagnet to analyze the network. My plan is to reduce the number of AP's in that location and disable broadcast of SSID.

Is there anything else I need to do to reduce the management traffic overhead?

Thank you
0
Comment
Question by:dylanites
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
  • 2
  • +2
8 Comments
 
LVL 6

Expert Comment

by:JapyDooge
ID: 21760180
Maybe it's an idea to get a few high end long range AP's?

Also WEP2+TKIP has way more management traffic than WEP for example but its less secure
0
 

Author Comment

by:dylanites
ID: 21760220
Do you think broadcasting SSID adds to management traffic? Also does operating both 802.11b/g contribute to the management overhead?

Thank you

0
 
LVL 3

Assisted Solution

by:shroomduck
shroomduck earned 75 total points
ID: 21760244
Yes! Broadcasting the SSID not only consumes power, creates a visible network,  but also creates network traffic, turn off broadcast and just manually configure the point on your users PC's
0
Connect further...control easier

With the ATEN CE624, you can now enjoy a high-quality visual experience powered by HDBaseT technology and the convenience of a single Cat6 cable to transmit uncompressed video with zero latency and multi-streaming for dual-view applications where remote access is required.

 
LVL 7

Expert Comment

by:mabutterfield
ID: 21760249
Disabling the broadcasting of the SSID will not reduce the number of beacons.  Disabling SSID broadcast only removes the ssid from the beacon.  

On most APs, you can change the beacon interval if you wish to reduce the amount of traffic.  

0
 
LVL 6

Assisted Solution

by:JapyDooge
JapyDooge earned 75 total points
ID: 21760399
Both b and g will indeed have more management traffic becouse the beacon has to be send at both frequencies.
0
 
LVL 3

Assisted Solution

by:Ironnica
Ironnica earned 150 total points
ID: 21768414
If your WLAN shows 90% of management traffic as becon frames, then I am very sure that there is some problem in the settings. I hope your data packet size is not set to too small, coz sometimes for better performance small packetsize produces high throughput, also when number of nodes are high and that to if they are roaming. Because wireless devices like AP have intelligence and so you can increase the minimum threshhold time for a becon to be sent so as to reduce traffic, rather than stopping it, especially if the nodes are not static.
0
 
LVL 7

Accepted Solution

by:
mabutterfield earned 200 total points
ID: 21773198
When you were looking at the network with Air magnet, was there any wireless activity?  I'm wondering if perhaps this may be a false positive, and it's showing 90% of traffic is management, but that's because there is little to no data at the time.  

Also, you could fire up a linux box and run wireshark on a wireless interface (not associated, in prom mode)

Try the following filters in wireshark, you'll see exactly what is happening.

Association request frame       wlan.fc.type_subtype == 0
Association response frame wlan.fc.type_subtype == 1
Probe request frame       wlan.fc.type_subtype == 4
Probe response frame      wlan.fc.type_subtype == 5
Beacon frame             wlan.fc.type_subtype == 8
Disassociation frame       wlan.fc.type_subtype == 10
Authentication frame       wlan.fc.type_subtype == 11
DeAuthentication frame       wlan.fc.type_subtype == 12

0
 

Author Closing Comment

by:dylanites
ID: 31466161
Thanks all - I am still troubleshooting this issue. I shall close out for now. Thank you
0

Featured Post

Flexible connectivity for any environment

The KE6900 series can extend and deploy computers with high definition displays across multiple stations in a variety of applications that suit any environment. Expand computer use to stations across multiple rooms with dynamic access.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
checking for updates 11 80
Wi-Fi not visible in Network & Internet settings in Windows 10 on PC 39 110
laser color wireless scan to email 16 84
Cisco Wireless Access Controller 3 34
This article is a step by step guide on how to create a basic PTP link using Ubiquiti airOS devices. This guide can be used on the following Ubiquiti AirMAX devices. Nanostation, Bullets, AirBridge, Nanobeam, NanoBridge to name a few. Please review …
Today sees the launch of a new case study, focusing on BYOD technologies we have been working with for some time now.  But with the advent of 802.11ac wireless technologies and the story behind our landmark developments, we would like to share this …
This Micro Tutorial will show you how to maximize your wireless card to its maximum capability. This will be demonstrated using Intel(R) Centrino(R) Wireless-N 2230 wireless card on Windows 8 operating system.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…

740 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question