I'm in the process of adding wireless capablities to our lan. I've installed the first 3com access point (11g) and it works great.
I'm experiencing the following problem:
whenever I install the second Access Point, my network slows down considerably. After some investigating, I noticed that multicasts went from an average of 50-80 to 2900+ as soon as the second AP was powered on. I see a tremendous amount of retransmissions, acks, etc. I've swapped out the AP's but I still get this problem. I need to install 8 AP's.
Has anyone come across this problem? 3Com was no help.
I have a simple nt4 network with about 200 users.
1 pdc, 2 bdc
win2000 server for dhcp
Re: multicast storm in wireless network
14 years 3 weeks ago #5280
If possible could you post a small capture file with samples of the traffic so that we can analyse it. Are you sure its multicast traffic ? 802.11 does generate a lot of administrative overhead in the form of beacons etc.
thanks for replying. How do I go about attaching a file? Can you use a sniffer 4.5 format?
On the sniffer dashboard, the multicasts/s shoots up from 50-80 to currently 3047, all other values being about the same. This happens as soon as I plug in the second access poin, and disappears when I unplug it.
Hmm if you have a little bit of space to upload the capture files to it would be a good idea.. maybe a geocities account or something.
I guess the sniffer file format should do.. see if it can save as a libpcap packet capture file since thats more universally supported. No need to give a whole lot of traffic, just a small sample is fine.