Re: [Madwifi-devel] [Madwifi-users] Madwifi-0.9.2 problem for bonding.
Status: Beta
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From: John C. <jc...@me...> - 2007-02-28 17:37:01
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Erdenebayar Buriad schrieb: > HI folks > I am asking a help/advice of bonding with wireless multiple interfaces. > I am using Atheros chipset based wireless cards configured madwifi > driver for bonding experiment (bond with 3 interfaces on each node). > Testbed is very simple: 2 Linux nodes (RHEL EL4 with kernel 2.6.9-5) , > each node has 3 wireless interfaces. > When I use Madwifi-old driver, connection is very good (throughput is > high) between 2 nodes (between bonded interfaces). > Recently I started to use madwifi-0.9.2 driver on my system. > But, problems started: When I PING between 2 nodes, I lost many > packets (more than 70%). > Also after bonding command, MAC address of 3 wireless interfaces are > could not share (iwconfig). In order to use bonding, I presume you are using Ad-Hoc mode on your wireless interfaces. I have had a lot of problems with ad-hoc for quite some time with the 'new' Madwifi driver. There have been incremental changes that have improved things, but none seem to work as well as 'the old stuff'. I saw a recent mentionof patches which may make more improvement, unfortunately I've been busy on other projects and have not had the time to implement the patches and come to my own conclusions about the operational status of Ad-Hoc and the most recent versions of Madwifi. One suggestion that I did use with the recent Madwifi driver was to use the 'ad-hoc' demo mode (ahdemo). This mode does not generate beacons, and some of the problems of reliability of Ad-Hoc seem to point to problems with beacons. |