Ian, Apart from the possible RF causes mentioned (you can try running a dot11 linktest against the root/parent mac).
1. Is the Aironet IE enabled on the SSID? What about "dot11 extension aironet" on the AP interface? 2. Is the bridge setup as a mobile station (under d0/1 interface)? This is the default, and presumes the bridge is mobile and should be actively scanning for a better connection. I think there are some scanning intervals under the interface as well. 3. infrastructure-client (under interface) provides more reliable transmission of multicast frames (acknowledgements). 4. Also try tweaking the parent <mac> and/or timeout commands (under interface). Bruce T. Johnson | Network Engineer | Partners Healthcare Network Engineering | 617.726.9662 | Pager: 31633 | [email protected] -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Procyk, Ian Sent: Thursday, June 25, 2009 12:11 PM To: [email protected] Subject: [WIRELESS-LAN] Problems with Cisco Work Group Bridges Hey all, Been lurking on the form here for a long time, and haven't posted anything, but we have a real interesting issue, which Cisco TAC can't seem to wrap their head around yet... Just wondering if anyone else has encountered similar behavior: We have a small MESH network on campus (about 10 nodes now, and growing to 22 by then end of this year). In some places on campus, we have construction trailers / outbuildings, which we service by converting AP1230's into workgroup bridge mode (WGB). These workgroup bridges, backhaul to the nearby MESH network, and provide these construction trailers with basic "wired style" internet access. The problem we are seeing, is that these work group bridges often disassociate or temporarily drop off the network and come back on. This can happen several times a day (despite SNR is often 20dB+). We are running 5.2.181 (dev code, produced to help fix this very issue) but are having no luck. Anyone seem similar behavior with WGB's? Anyone have any tips/tricks to help keep these units online? Thanks Ian Procyk UBC IT Connectivity Infrastructure 604-827-5707 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
